V4 Tyres By Dealer

That explains a lot, last tyre fitter put 7 x 5gr weights on my rear wheel, the ugly flat car ones which went rusty after 500 miles. Have to say not impressed.

 

I didn't know about tyre calibration until I read these posts. "gc6269" reset his to get his quick shifter working after a tyre change. Is that the purpose of the recalibration, because the manual doesn't give a reason for performing the recalibration.

 

I was surprised a tyre change would require a recalibration, but it worked.

I’d imagine the maths for rolling circumference of the wheel, gear and revs are pretty complicated and a mill or two could knock it out of sync.

Anyway, I do mine fairly regularly. To make life interesting, I like to think I’m on the pit lane limiter coming into the pits at the TT.

It’s the little things.

 

The change in rolling circumference between brand new and worn tyres can be enough to screw with the tc.
Some bmw cars with 4x4 require * marked tyres as the difference in rolling size can be marked between different tyre makers even with nominally the same size.

 

Yep, my quick shifter packed up in France after I had a new rear tyre fitted. A quick call with my UK dealer from the hotel that night, he said to perform the recalibration, it’s been fine ever since.

 

Been fitting my own tyres for years, some tyres with harder side walls are difficult, Michelin Road 5's I can often get on the rim with just my fingers and thumbs, and lots of tyre soap. It's not due to the cost of having them fitted, I can get them done for £10 each on loose wheels, it's the convenience, I've always got my next set in the shed when the current ones are getting low, in less than an hour I can have new tyres on.

 

You are well organised GT.

 

Where do you dispose of the old tyre carcasses ? Andy

 

Just take them down the council rubbish tip when I'm passing that way.

 

Allways fitting tyres myself with the help of a MAX2H and static balancing.
Using nice black balancing wheigts on my unscratched rims...

 

Unfortunately, not an option in our area. Both local ‘council’ run tips are managed by outside contractors who won’t accept tyres, even bicycle tyres. Andy

 

Could make some of these then

 

In the same boat; as of last year my local tip no longer accepts tyres.

Have been changing mine for a few years now having bought, like Bertus58, a MAX2H changer and static balancer. Not sure if it will ever actually pay for itself but factor in the convenience and I'm well ahead.

Really? I find Road5s quite a struggle, especially the rear.

 

I struggle more with the front, rears just pop on with plenty of soap on the inner bead. Front I generally have to use a lever for the last bit, with a rim protector.

 

Re: Tyre Calibration - can someone elighten me as to how does it work? Watched a video on how to calibrate, and you just ride a steady speed. Now in my head, speed on the bike is read by ABS sensor, some could call it wheel speed sensor. Given the tyre has changed the diameter, if going brand to brand, or wear out, and you doing 30MPH, the wheel would still do the same RPM with small and big wheel, no? Or is there some GPS input there?

Or is the "speed" measured on engine output, and computing difference to the ABS sensor? I could see that as a possibility.

Anyway, any good tyre shops in West Middlands? Coventry, Daventry and about. Thanks

 

Half hour to get there, not bad. Thanks