Please can anyone advise how their boxer performs on the BFG all terrain tyres ? I have just bought the campervan, it has new discs and pads all round, but the braking distance is reduced with these tyres on, also the noise and excessive vibration is driving me insane ! Or is this normal with a BFG A/T ? Also, does anyone know what the PSI of these tyres should be on 225/75/R16�I�ve only had the campervan a couple of weeks and thinking of replacing these with normal tyres !! Any advice would be fab. Thanks so much.
The PSI will surely be on the tyre wall. Ours is also on a sticker in the driver’s door frame and also in the MH handbook.
Can’t advise re all-terrain tyres, our Boxer has the hefty MH standard issue tyres fitted by Auto-Sleeper.
All terrain tyres are generally noisier than road tyres.
PSI should be on the door pillar somewhere.
The PSI on the tyre sidewall is the MAXIMUM it should be inflated to, NOT the normal pressure.
Without getting too technical, tyre noise is stated in Decibels, and that's a logarithmic scale not a linear scale, so 80dB is TWICE as loud as 70dB! Most ordinary car road tyres are rated around the 70dB mark, your tyres are rated at 75dB - that's a lot louder! TBF, most commercial vehicle/van tyre are a bit noisier than car tyres, at circa 73dB, but yours are still louder than 'normal'.
They are intended to cope with off road conditions, and that will compromise on road use in some way, the harder sidewalls will give a harder ride as the normal flexing of sidewalls is part of the vehicle suspension.
As to stopping distances, what are you comparing it against? Unless you are familiar with the same vehicle, or a near identical vehicle, on different tyres, you don't have a bench mark to judge by. You say it has new brake pads and discs all round, well they take a good many miles, hundreds at least, to truly bed in and perform at their best, are you being premature in your judgement on braking? As you seem unsure of correct tyre pressures, the tyres may not be at the ideal pressure, and that too can influence braking.
Is it true vibration as in wheel wobble, or noise? That blocky tread will give a 'harsh/noisy' ride on the road. If it truly is out of balance vibration, that too can compromise braking efficiency at higher speeds, say over 40mph, as the tyres are not in consistent contact with the road.
People often choose tyres for 'the look' rather than practical reasons, do you really need All Terrain tyres for normal camping trips? I tow a caravan that is no lightweight at near the weight of my car, and with a front wheel drive car, and I've never had traction problems on any camp site I've been to, grass, gravel or whatever, and with ordinary standard road tyres! I appreciate the MH's with front wheel drive do sometimes struggle, as the rear axle tends to sink in soft ground due to vehicle weight and 'bog' the vehicle, but a load spreading plank or 'mud mat' can stop that ever happening.
Those All Terrain tyres are going to give relatively poor fuel economy (E rated) compared with a standard road tyre (typically C rated), so another factor to maybe consider.
Should you change them! Your choice! Think I'd check out the other factors that maybe affecting braking, then run them a while to see if I got used to them. Perhaps worth thinking about their age too, tyres should routinely be changed at 5-7 years old just on age deterioration alone, being a MH, chances are it's not clocking up huge mileages to actually wear the tread down to point of needing replacement, so age is likely to be the reason to replace.
Tyre pressures should be on a plate/sticker on a door frame or under bonnet, also possibly in a handbook. Tyre pressures are relative to the vehicle weight, so fairly specific to any given vehicle, not a tyre type/size alone.
Thank you so much for sharing your logical thought process. A clear common sense approach. We’ll start off with a wheel re-balance, correct PSI and run them for a while on the new brakes. Like I say, I bought the campervan with them already fitted. A conventional tyre would have been my choice as there is no off-roading to be had !!!
I see these more and more on vans, usually the self conversations and although I understand their inherent advantages, mostly the decision to fit is cosmetic.
I looked into getting AT tyres for my previous van, a mwb rwd Transit but my research threw up that the axle loading is not 50/50 on those vans therefore making most ATs not legally compliant.
As I'm up in Aberdeenshire, I still wanted something with decent grip, so instead went with Mud and Snow road tyres. Much cheaper than ATs with a better, quieter handling.
If you do change out your tyres, you could get a spare set of rims and keep the ATs for winter or particularly muddy routes. Or you could sell them on, as I'm sure there would be plenty wanting to convert to ATs but save a bit by buying them part worn
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