Something to be aware of with Ducatos with their higher pressures is you will often need high pressure tyre valves not the standard car type. It may not display this or other websites correctly. over 2 million customers served. fiat ducato camper tyre pressures 225 75r16feste compleanno bambini siracusa MANHALNET COMPANY sceneggiati gialli rai anni '60 e '70 Re your air bag pressures? http://www.tyresafe.org/data/files/motorhome%20leaflet.pdf, http://cgi.ebay.co.uk/4-x-HIGH-PRESVehicles_ET&hash=item4aa18c5284#ht_1173wt_913, http://cgi.ebay.co.uk/4-x-HIGH-PRESSURE-COMMERCIAL-SNAP-IN-TYRE-VALVES-/320537907844?cmd=ViewItem&pt=UK_Cars_Parts_Vehicles_Other_Commercial_Vehicles_ET&hash=item4aa18c5284#ht_1173wt_913, x290 Ducato 2.3 twin EGR version Oil Pressure Sensor Location. Hi. I still have part of the correspondence with them from 2001, and all of it from 2004. Wheel Pattern 5 stud 5x118. This tyre placard recommends a minimum tyre pressure of 65psi for the Fiat Ducato. Boxer 2.2 Elddis Aspire, uprated from 3700 kg to 3850, required semi air suspension and replaced 215/70 r15 with 225/70 r15 Michelin Agilis CP. When inflated to 79psi there seemed to be a marked improvement in handling. Marked CP, and will be what manufacturers recommend for the rear to cover themselves. For FWD vehicles ALL tyres should have the same pressure and for the maximum axle loading of 2,240 kg on your 225/70 R15 CP tyres this is at a pressure of 4.75 bar or 69 psi. of 3500kg, 4000kg, 4250kg or 4400kg. Anyway, go to tyresafe.org, all the info you need is on there once you know how heavy you are. Pages 86 and 87 provide data for a tyre with a 225/75 R16CP specification and youll note (on Page 87) that - for the 116 R variant - three sets of inflation-pressure(bar) to load-capacity(kg) values are given. All Rights Reserved. We use essential cookies to make this site work, and optional cookies to enhance your experience. The load on the tyre must not exceed its maximum limit for any reason, i.e. USA e Internacional Verenigd Koninkrijk Duitsland Spanje Frankrijk Itali Nederland Belgi Australi Canada case in vendita a catania, zona ognina picanello Facebook procura speciale per ricorso in cassazione fac simile Twitter penske automotive italy fatturato Google Plus X 4 Michelin Agilis motorhome tyres for sale. My post yesterday was not about what pressures I should run my tyres at, it was a comment on Michelin. For Light Truck and 44 tyres, use 6psi as a guide, but rough and . According to the manual recommended tyre pressures are Front : (215/70 R15 CP) 5.0 bar. Lifetime Guarantee on all car, van & SUV tyres. 2572212 | VAT Registration No. By A fine balance you might agree. The CP-marking was discussed in some depth within this 2014 forum thread, https://forums.outandaboutlive.co.uk/forums/Motorhomes/Motorhome-Matters/New-tyre-blowout/33821/. The wording rather supports the theory I've always had; that the tyre manufacturers introduced a tyre with inherently greater capacity (at the raised pressures) than one might be led to believe from the load index in order to compensate for the endemic overloading of motorhomes, particularly the rear axle, thereby attempting to circumvent the reputational damage from having repeated tyre-failure on such vehicles. Maintaining the correct tyre pressure will help to extend the life of your tyres, improve vehicle safety and maintain fuel efficiency. The best you can do without true axle weights is to set the pressures for the maximum allowable axle weights as stated on your VIN plate. When I fitted mine I checked the height between the rear jacking points and ground level with the van empty, loaded it to its max 3850 then pumped the airbags up to achieve the same ground clearance. They were measured at 4 points across the tyre and 4 points around, so 16 measurements. This website uses cookies to improve your experience while you navigate through the website. You can head over to ourhomepage, browse through a ton ofresources. Ithink the discussion has probably already ranged rather too far. Dribs and drabs of information that have come my way is that CP tyres have an extra toughening in the sidewall to cope with the greater leverage ratios on the rear axle with extended chassis on Motor Homes compared to vans. Started 3 minutes ago, By I thought Leo was commenting on a new tyre that he'd bought to replace an existing one, and had noticed different load and pressure markings. Started 4 minutes ago, Copyright Warners Group Publications Plc. The motorhome base vehicles are actually built by Fiat Professional for Europe's leading . I cant tell what is due to crappy roads and what is due to tyres. 2020 Fiat Ducato 3.0 MPI Generation: 290 2015 - 2023 European Market model Power: 134 hp Engine: 3.0L, I4 , Petrol-LPG Center Bore (DIA): 71.1 mm PCD: 5x118 Thread Size: M14 x 1.5 2020 Fiat Ducato EV Generation: 290 2015 - 2023 European Market model Power: 121 hp Engine: Electric Center Bore (DIA): 71.1 mm PCD: 5x118 Thread Size: M14 x 1.5 (Obviously you dont HAVE to inflate your motorhomes Michelin tyres beyond the 475kPa shown on the tyres sidewall, even though its near certain that a 5.5bar (550kPa) pressure will be advised in your motorhomes handbooks for both front and rear tyres. (despite any later recommendation of "CP"), and the implication that the implementation of CP tyres has been particularly oriented towards vehicles with driven rear wheels. . My understanding is that the CP-marking may only be used on 8PR tyres (I assume this is a weird ETRTO diktat) so the 215/75 R16 116 R VancoCamper does not qualify. The Fiat plaque states recommended 450 kPa front and 550 kPa back full load. fiat ducato camper tyre pressures 225 75r16. Cant see Torque settings? Definitely a step in the right direction. Nevertheless it is a genuine camping-car tyre. When I had the new tyre fitted last week I was asked what pressure I wanted in it. Maximum is 3.0 Bar. In use: check and adjust if necessary tyre inflation pressures monthly and before. So - if I were contemplating altering the pressures advised in the Ducato handbook for camping tyres and those tyres were Michelins - Id be comfortable using the Continental data for the rear tyres. Yes you are correct re our new motorhome. He led me round to his storage . Trying to relate the USA tyre scene to the European one is like comparing American football with rugby - its a different ball-game. For example, Hymer gave me front and rear tyre pressures which are different to those Alko gave me which are different to the ones Michelin gave me which are different to the ones I received when I keyed the axle loadings into: https://www.tyresafe.org/check-your-pressures/motorhomes/. Show all. Only 3 manufacturers (Continental, Michelin, Pirelli) currently offer CP-marked tyres. Source for tire and wheel application fitment data Last Update: Feb. 20, 2023, 5:12 p.m. Once youve weighed your Burstner you can seek advice from Michelin about tyre inflation pressures. Tyre & Wheel Balance. Just thought it interesting that maximum pressures dropped. I checked the tyre pressures on my Ducato motorhome today. JavaScript is disabled. But opting out of some of these cookies may have an effect on your browsing experience. C CP type-tyres (commercial vehicle tyres for service on motor-caravans) have only been marketed in the last few years. my problem right now is finding a weighbridge owner that knows how to weigh the van properly after my normal place closed down on retiral of the proprietor. 53 sold. 16" motorhome spare wheel and balanced tyre to fit Fiat Ducato or 275719721276 Ive also found a 2004 Michelin Van Tyres Fitments, Pressures and Technical Data booklet (that I thought Id chucked away). 4.5 out of 5 based on over 122,000 reviews. In March 2017, the DVSA advised me [the advice is somewhere in a post of mine around that time], " the vehicle should be weighed with a full tank of fuel full tank of water and all that you would normally carry but we would recommend that a tolerance is used to allow for the items you may pick up on route the different foods you may carry etc. Search your Size. Coachbuilt motorhomes not built on a Citroen/Fiat/Peugeot base have also tended to have C-marked rather than CP-marked tyres (my 2005 Ford-based Hobby for example). In 2014 I asked Michelin exactly what the ETRTO standards manual said about the CP suffix. Your link has been automatically embedded. the, The ETRTO also states that where CP tyres are used on the rear axle, (single fitment), they must be inflated to a pressure of 5.5 bar instead. You might choose to do this, and maybe I am just more cautious, but for all their faults in communicating, I feel that Michelin must have good reasons to state 5.5 bar. Your Fiat Ducato Owner Handbok will specify an inflation pressure of 5.5bar for your motorhome's front and rear 225/75 R16 CP 'camping tyres' and - if the Laika handbook includes a tyre-pressure recommendation - I'd expect it to repeat the Fiat advice. such as the crown, which could lead to a rapid deflation. My Brstner manual has a table of tyre pressures that are TUV approved (otherwise they couldnt appear in the manual) which give different tyre pressures front and rear except where 16 inch wheels are used. Report this item opens in a new window or tab. The air bag pressures are far more problematic than tyre pressures IMO. However, you cannot guarantee that the design , construction and composition of the tyre is the same, and that the operational properties of the tyre are the same under all conditions as the Continental. I may have that wrong but I've attached (hopefully), Interesting that tyresafe has a calculater that gives different information to the leaflet which I eventually found on their site at. This should give you suitable pressures until you can get your MH weighed and calculate more exact pressures. Generation: 290 2015 - 2021. It seems quite a bit different to the advise that Michelin USA give for RV tyres, different weight different pressures and non CP tyres, just the crossclimate though its ratings are the same for CP tyres. DUCATO automobile pdf manual download. has a single wheel on each end of the axle) so it wont apply to a motorhome that has a twinned-wheel rear axle (ie. Based on page 28 of the ETRTO standards manual 2013, the suffix "CP", meaning Commercial vehicle tyres for service on motor caravans, has no specific regulation but is merely a marking which defines the tyre as a motorhome specific tyre designed to be capable of taking the higher loads often found on motorhomes. camra sport boulanger essentiel b. nom de ville le plus repandu en france; sssm sdis 29; texte sur les saisons ce1; florian maurice fortune; expert en sinistre formation en ligne Sorry, we differ here. We offer a wide variety of tyres for your caravan, campervan or motorhome. under: depths of fear story explained; taidnapam park fishing; what state has the worst soil; unghia incarnita gentalyn beta; 5 letter words ending in eath; Im still on 15inch wheels but with 225/70 R15 tyres which carry a heavier loading. The CCP applied to coachbuilt designs, but NOT to panel-van conversions (PVCs). Is this correct or is there some reason the garage / previous owner had them at this pressure. This followed a study which demonstrated, that overloading is generally the main cause of tyre failure, due to the fact that this type of vehicle often carries an excessive or badly distributed load, which, may be higher than that permitted by the load index (LI) of the tyre; usually on tyres fitted to the rear axle. Fiat Ducato Tyre Pressure 65 psi (Pounds per square inch) 450 kPa (Kilopascal) Expert Rating 7.3/10 CarsGuide has published 2 expert reviews of the Fiat Ducato. Agreed, I would always prefer to see an additional margin for safety, albeit the choice is perfectly legal. We deliver enhanced functionality for your browsing experience by setting these cookies. 225/75 R16 (1360kg min) TYRES Below are a few 225/75 R16 tyres that have a rating of at least 119 / 1360 kg each that will enable those with a "Heavy" variant (ie rim PCD 5x130mm) to achieve a rating of 2700 kg on your rear axle. The advice from the professional engineer who advised on my weight upgrade was a tyre loading of 112. Upload or insert images from URL. Free Postage. Fiat Ducato Motorhome Alloys - Original and as new with zero damage. Then there are insurance issues to consider in the event of an accident. Ours is based on a Transit 300 chassis. I simply want to make sure my van is safe to drive and that my insurance remains valid. Our automotive experts are here to help, If you're wondering, we've probably got the answer. but you need the axle weights for absolute correct pressures. and, for anyone who doesn't want to trawl through it, the bit I was interested in is this: Tyre use and maintenance for motor-caravans (or motor homes). I was also amused to note that the FIAT CoC for my 'van shows homologation with 225/75 R16C tyres (front and rear axle, though I doubt it actually left the factory with a rear axle :-) ) The intermediate Al-Ko CoC has homolgation with a plethora of sizes, in both "C" and "CP" versions, and the Hymer CoC is again homologated with 225/75 R16C tyres, but slightly different spec to the Fiat CoC. Find the size of your tyres and their load rating from the tyre sidewalls and the maximum axle weights from lines 3 and 4 of your VIN plate and then we should be able to help with suitable pressures. from sunlight, and use. Protect tyres from UV radiation, e.g. Unlike VanContact Camper its designated a summer tyre and is not M+S, 3MPSF, nor CP marked. We also use third-party cookies that help us analyze and understand how you use this website. I have a link to a 2011 USA Michelin tyre data book which has some useful data but note the USA call 'C' tyres 'LT' for Light Truck. vehicles originally homologated and fitted with CP tyres. You can post now and register later. We have a Ducato Mulivan 150 van conversion with 225/75 R16 Michelin X Green Eco light truck tyres The imprinted Max Speed and Cold Pressure on the tyre wall is stated as116km/h at 80 psi.. Pasted as rich text. Check tires price. The entries for the XC Camping pattern had a footnote recommending that for Continental European vehicles the rear-tyre pressure should be 5.5bar. Cookies set by third parties may be required to power functionality in conjunction with various service providers for security, analytics, performance or advertising purposes. Tyre Sizes 16 Inch 225/75R16 225/75R16 Tyres Best Sellers All Tyres Tyre price includes Tyre Fitting Wheel Balancing Tubeless Valve Waste Tyre Management FREE Shipping to your selected store GST Radial AT 225/75R16 115Q $205 /EA Qty 4 Select a store to see availability Add to booking View Product Details BUY 3 & GET 4TH TYRE FREE The contract for oriiginal equipment (OE) tyres for Fiat chassis destined for motorhome conversion has alternated between Continental and Michelin and, to the best of my knowledge, Fiat has never fitted Pirelli CP-marked tyres as OE. You are using an out of date browser. 225/75R16 tire pressure chart with maximum tire load capacity at determined tire inflation levels for 225/75R16 tires. Then to determine if you have the correct pressure for your current load, note down the cold tyre pressure reading. As I said above, Michelin will just echo the ETRTOs stipulation that their CP-marked tyres fitted to a motorhomes rear-axle should be inflated to 5.5bar, but my experience has been that Michelin will normally provide a pressure-to-axle-weight datum for their CP-marked tyres when these are fitted to a motorhomes front-axle. 2572212 | VAT Registration No. check out ourevents calendar, or even become amemberif you like what you see. It will be seen that the ETRTO stricture relating to the 5.5bar rear-tyre pressure does not discriminate between FWD or RWD motorhomes. If the vehicle is parked for a long time, do not leave the tyres under inflated, and always make sure that the inflation pressures are correct before next, using the vehicle. Overloading (even temporarily) or poor vehicle load distribution can cause, premature deterioration of vehicle components and/or tyres and thereby cause, If a change of tyre size is foreseen, a tyre of an equivalent overall diameter, should be used and the original load index and speed symbol should be, respected (speed and load ratings must be equal to or greater than the, original tyres). Peace of mind, at no extra cost. I do not know whether that advice is still DVSA's approach but it strikes me as being reasonable. All Rights Reserved. x290 Ducato 2.3 twin EGR version Oil Pressure Sensor Location. You may not reject these. Advice from Michelin 5.5 bar all round. Tire pressure is a vehicle's recommended cold tire inflation pressure. Drive for at least 20-30 minutes to ensure they have reached operating temperature and check again. Started 4 minutes ago, Copyright Warners Group Publications Plc. It carries a Rapido data-plate advising that its tyres (215/70 R15CP Michelin Agilis Camping) be inflated to 5.0bar (front) and 5.5bar (rear) when the motorhome is FULLY LOADED, though what this actually means is not defined. Tire size. Michelin used to publish a light-commercial vehicle data booklet containing similar information to Continental's, but I dont think its still freely available to the general public. Four Season. I briefly tried those pressures, but the ride was harsh and the steering unpleasantly light. Is this correct or is there some reason the garage / previous owner had them at this pressure. My Hankook tyres which were fitted to my MH recomended a pressure of 65 psi at 1900kg on the rear in the US they were rated for 2060kg at the same pressure. . As has been advised here countless times, if you want to know SUITABLE pressures for your motorhomes tyres, youll need to identify the tyres EXACT specification (make, tyre-name, size, load/speed identifiers) and then obtain the motorhomes axle-loadings by weighing each axle when the vehicle is in its normally-loaded condition. The Laika came with Michelin Agilis 225/75 R16 CP 116Q, so after visiting a weighbridge I went through the same exercise with Michelin and I got standard response No 8 after a bit of a wait - consult the Fiat handbook; consult Laika; what does your mother say? USA e Internacional Verenigd Koninkrijk Duitsland Spanje Frankrijk Itali Nederland Belgi Australi Canada GWM Ora Standard Range 2023 review: snapshot, Volkswagen Caddy 2023 review: Cargo petrol, Hyundai Santa Fe 2023 review: Active diesel long-term | Part 3, Mazda BT-50 2023 review: XTR long-term | Part 5, Ford Everest 2023 review: Ambiente 4x4 Bi-Turbo - off-road test, Mitsubishi Outlander Plug-in Hybrid EV 2023 review: Exceed - off-road test, Mazda BT-50 SP 2023 review: off-road test, Ford Everest 2023 review: V6 Sport - towing test, Kia EV6 2023 review: GT-Line AWD long-term | Part 2. Despite what Tyresafe recommend, Im going to continue to follow the advice on the tyre sidewall. However, I was warned to check for the dreaded under-inflation, both visually and via road performance. These cookies will be stored in your browser only with your consent. All Rights Reserved. Fiat Ducato - Specs of rims, tires, PCD, offset for each year and generation | Wheel-Size.com Wheel- Size.com The world's largest wheel fitment database. It would be interesting to see the actual wording applied to "Camping Car" tyres in the ETRTO standards manual - unfortunately I haven't managed (as yet) to find a free download of the same. Panel on the door says 72 PSI front and 79.5 rear. This link is to Continentals 2017.2018 Technical Databook, https://blobs.continental-tires.com/www8/servlet/blob/585550/e0854f2c7866c64da551474b998ef8b3/download-technical-databook-data.pdf. Your previous content has been restored. Ideally, they should be 4psi above the cold pressure. My Rapido 640F motorhome is smaller and lighter than yours and I dont load it heavily. Later on there was argument over whether that pressure recommendation applied only to RWD vehicules (though, with hindsight, it has to be asked why that should ever have been the case). One tyre was within a smidge of 3mm on every one the other 3.5mm. of 3500kg, 4000kg, 4250kg or 4400kg. OE LT225/75R16 116R 10PR . . Beware! Im mightily confused.com, decided its time to check my pressures on my Fiat Ducato chassis Swift Escape 696. Enjoy year-round adventures with the exclusive MICHELIN CrossClimate Camping tyre. This is a tad lower than the Fiat figures of 59 and 65. 225/55R18. Read all the reviews here . 265/65R17. European Market model. Pasted as rich text. Find many great new & used options and get the best deals for FIAT DUCATO CAMPER NEW WHEEL AND NEW MICHELIN TYRE 225/75/R16 CB at the best online prices at eBay! Necessary cookies are absolutely essential for the website to function properly. Johnny's() 5123 . At the same time I was balancing items like cases of wine v dog food. Digital air pumps (the best way to monitor pressures) are common at many large chain petrol stations and will automatically inflate to the number you have entered on their screen. Very slight increase from 20 to 20.25. In the past Michelin (UK) published a hardcopy booklet equivalent to Continentals softcopy technical data file. 215/75 R16 112R. 139.95. 2,500+ local fitting partners. Here's what to look out for and buy smart, Get to know the personalities behind the team every week, The most interesting hints of what's to come. Quality, Research & Development, Medical (QRDM) Training Committee. with michelin campers 215/75/16 i keep tyre pressure at 80 all round had these tyres since new thats almost ten years still plenty of tread on them but the outrr side walls are starting to perish 1150 single or 1090 dual is dual meaning for twin wheel? junio 12, 2022. jonah bobo 2005 . damage, cuts, cracking etc) as well as the condition of the wheels and valves, NOTE: For tyre inflation pressures above 4.5 bar (450 kPa), metal valves appropriate to. I had the 2004 booklet and this included inflation-pressure data for XC Camping tyres across a range of axle weights. Main Menu. Relevant data is around page 18 https://www.michelintruck.com/assets/pdf/Truck_Tire_Data_Book_Sept2011.pdf. This cars tyre air pressure guide chart can in some cases contain actual tyre pressure placards from a Fiat Ducato which can list the space saver tyre pressure and the laden / fully loaded tyre pressure. The '75' is the aspect ratio, the height of the sidewall as a percentage of the tread width, so this tyre would have a sidewall that's 75% of the tread width, 169mm in this case. 146 sold. Do you think the dealer will know the correct pressure. RA18 Vantra LT. Carrier. correction de texte je n'aimerais pas tre un mari. Just noticed the tyre pressures on my new motorhome on the actual tyre have changed from 80psi now shown as 475kPa which according to my reckoning is a drop of about 11psi. You must log in or register to reply here. 2023 Carsguide Autotrader Media Solutions Pty Ltd. All rights reserved. Consult your owner's manual for specific tyre (tire) pressure figures for Fiat Ducato. Maximum Control: These tyres offer extra driving stability for rear-heavy camper vans. Totally agree with wak, or the method I used with my previous van was the weighbridge fully loaded and then apply the individual axle weights to this site. At that time, they were happy to quote "custom" pressures for both front and rear axle loads, if shared, and with confirmation that this was at the actual fully loaded state. We are aware of the variations between weigh bridges but we will not tolerate people that have checked the weight but continued even though the weight was clearly over the maximum permitted weight for that vehicle.". While I havent yet had my axles weighed in the new form,I fully intend to do so before I go on holiday once I am loaded. The rear Hankooks which I ran at 65psi, Hankooks recommended for 1900kg, were also evenly worn and had plenty of tread so they are now on the front. chp commercial vehicle inspection locations; salt protection prayer; helena obituaries helena mt; alastair mactaggart net worth; A series of fortunate events July 20, 2020. Historically - for many years - the advised pressures for Fiat-based new motorhomes fitted with Michelin and Continental camping-car tyres has been 5.0bar(front) and 5.5bar(rear) for 15 tyres, or 5.5bar(front) and 5.5bar(rear) for 16 tyres. kopen fiat ducato peugeot boxer citroen relay spare wheel 215/75/ r16 new tyre genuine van slechts 174.62 genuine fiat ducato peugeot boxer citroen relay 2006-2023 spare wheel nexen215/77/. Wheel Pattern 5 stud 5x118. Company Registered in England no. Thanks both not much info about agree on that and Im aware its dependent on different factors but needed a starting point. 60 front 65 rear on our van, door plate says 75 all round. Although front axle is not carring the same weight when braking downhill or heavy braking on level the weight transferred to the front axle can temporarily exceed its permitted rating, hence the recommendation to have 5.5 all round. fiat ducato camper tyre pressures 225 75r16. You are using an out of date browser. Whatever you drive and wherever you are heading, we have the right tyres for you so you can keep safe on those long journeys. AngelLaHash2023 | what to look out for. If in doubt, I should up the pressures. So if your Ducato has 225/75-R16 stamped on the tyre sidewall, it means the tread is 225mm wide and the inner diameter is 16 inches. Be able to get them to come up on the search? Tyre safe app says: 54 psi front and 80 PSI rear. The 5.5 bar, 80psi, guide is for camping car tyres only. Been trying to find out the correct tyre pressure for our Fiat Ducato Knaus Traveller, but cant seem to find the info anywhere. I have a feeling that Continentals VancoCamper CP tyres had a sidewall inflation-pressure marking (a US requirement) that was less than the 80psi/5.5bar that the tyre could be inflated to, and Continentals databook entry for a 225/75 R16 CP 116Q tyre gives a 4.75bar inflation pressure value for a front axle load capacity of 2500kg (Load Index = 1250kg x 2), with a 5.5bar value for a single wheel rear axle load capacity of 2500kg. The cost was 5 for an official note or free if I only wanted them written down. The sidewall tells you that the loading value (112) is only reached when the tyre is at a certain pressure (think its 5.5bar but cant remember right now). It's also interesting to note "Tyres usually fitted to motor-caravans are of a "light commercial ('C' or CP)" type." Michelin Camping tyres are made in several size and load ratings including 116Q and 118R for the 225/75 R16 tyre. Tyre Rotation. Ive noticed that the rear is less harsh now Ive replaced the rubber bump stops with airbags. Note: This advice is only to be used as a guide. That is what I concluded some time ago. This tyre placard recommends a minimum tyre pressure of 65psi for the Fiat Ducato. fiat ducato camper tyre pressures 225 75r16marc d'amelio house address. Ahh. When fitting any new tyre size differing from the original equipment, it is the users responsibility to ensure compliance with existing regulations, regarding specifically, the vehicles load and speed capability. It is measured in bars or PSI (pounds per square inch). Do i put same back on or go for cheaper truck tyres? Never replace tyres with those of a lower speed rating or lower load capacity. Mine are 225/75R16 CP116R but I dont seem to. My thoughts are if the tyres are good to carry the weight there inflated at 4.75 then why do we need to inflate to 5.5 and suffer a very harsh ride. Powered by Invision Community. Upon collection, all four tyres were inflated to just under 80psi (5.5bar). Chassis produced by Fiat Professional form the base of motorhomes owned by over 700,000 families who travel in Europe. All absolutely useless and unhelpful - a corporate exercise in sloping shoulders. Under-inflation can be dangerous: for example, for the tyre size 225/70R15 Camping CP, an under-inflation of 0.5 bar/7.2psi. Upload or insert images from URL. As with all road vehicles, it is essential that tyres of the correct type be fitted. This will give you the front and rear axle loadings (and tell you if you are one of the numerous overloaded m/homes that VOSA love to pull over). However, a lower-than-5.5bar value may well appear on the tyres sidewall. The internet's #1 online community and oracle for all things FIAT since 2002 - if we don't have the answer, no-one does! Didn't realise the tyre markings were for North America and not found much about them on the internet. I then gave 2900kg as a rough unladen weight, which brought the pressures down to 47 front and 51 rear. My front tyres on my MH that I changed last September were Hankook and run at 52 psi with a 1600kg axle weight, removed when they were down to 3mm. The 745s Gross Vehicle Weight (GVW) is 4250kg. oops.forgot the figures.. rated excellent on trustpilot. Your previous content has been restored. Read all the reviews here. At 3500kgs I was only a few kilos away from that limit when loaded for a continental trip.