bt31 rear tyre

[Cormanus]

I had some BT45s, but they weren't radials. I thought they were fine, but they came to an early end when the rear tyre got a nasty gash in it. Didn't get to go flat, but would have split at some point. I changes to the PR3s and like them a lot, but the rear is oversize and I'd be just as happy to find a radial that fits. That said, I'll stick with the PR3s if they're around next time as 20,000 plus kilometres is pretty good going I reckon.

[max]

C, did you have bt45 front and rear or just on the rear wheel, i thought about bt45 but being crossply was not recommended to mix with radial on the front.

Some seem to think that is exadurated and it would work under normal circumstances, what was your combination?

[Cormanus]

Max, I've always run the same tyres front and rear. I used to change them both at the same time but, provided they're the same brand, I now just change each tyre as it wears out. If I can't get a replacement PR3 rear next time, I suspect I'll move to a new brand and leave the current PR3s on the front until it wears out. Someone would now have to persuade me my life was in serious danger if I didn't change them both.

For what it's worth, I got 15.5K kms from the OEM Dunlops. I couldn't then get OEM-sized radials so I replaced them with BT45s which ran for 11K before I replaced them with another set of BT45s. They lasted just under 10K before the rear got damaged and I put on a set of PR3s. I got 16K from the rear and 25K from the front; then 21K from the next PR3 rear and 24.5K from the front. My current PR3s are at 17.5K for the rear and 11K for the front. I'll have to have a look at the rear next time I'm in the garage as, if I go for a decent ride, it's likely to be more than 3K so I'll face the awful choice of whether to replace it before I go or hoping it makes it through.

[max]

Cheers mate, that's good info and as promised i will let you know what happens next, all the best!

[jimgl3_imp]

you can mix bias front and radial rear but not the opposite.

[max]

Jim et all thanks for all the info, just picked up the tyre and took some pictures.
All measurements are identical to the bt54, the thread depth is 7 mm at the center, circumference is slightly bigger as you would expect and is explained by the wear of the tyre so the speedo will be indicating the same speed and it looks a match with the pr3's,
So although the tyre is not yet on the bike it looks like the closest match i have seen, the rubber even feels the same firmness and it is dual compound rubber like our 54's.









Price $ 200 NZ.