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Do my tyres need replacing and advice on PSI


Welsh1da
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Hello again.


I've a 2011 yamaha Ybr125 and are clocking into the higher teens of stone in weight.


Just wondering if my tyres are ready for a change? I've done about 7000 miles on them and the bikes stored outside. Recently I've noticed some 'splits' (bout 1cm long) running in the thick rubber at the end of each groove of my outer tread patrern, also theres hundreds of tiny feather like cracks on the inside the tread grooves themselves. There is still plenty of tread left, so wondering what's caused these features I see, should I be worried and of course, do they need changing?


Also (if I need to replace them) I'll be having Michelin Pilot tyres as a replacement, the site states 2bar for the rear and 1.75 for the front, being heavy, so do I stick with manufacturers recommendations or how should I adjust these for weight? Also is there any care for tyres to make them last longer or avoid the features I've described here? .... Cheers!

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going by your explanation I would look at replacing them


have a look at the date code on the tyres if you can find it they might have been on since new!


as for pressure I would stick the the recommended pressures

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I've seen similar on trailer tyres that are stored outside. Normally caused by age and UV damage. It can also be caused by the tyre not being up to the axle weight but I doubt that would be the cause.

If it was me, I'd get them changed.


Sent from my SM-G930F using Tapatalk

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The cracks are the rubber drying out, its not getting hot enough basically. Not your fault by any means. Look at any small french hatchback

cracks are sign they are well passed best

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Thanks guys, the tyres are bang on a year old, but being outside, they have been exposed to the elements, though they are under a cover most of the time.


So at my weight, a year old and at 7000 miles, is that pretty good for a 125cc tyre? Or is there something that I can do to make them last longer etc?

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The cracks are the rubber drying out, its not getting hot enough basically. Not your fault by any means. Look at any small french hatchback

cracks are sign they are well passed best

 

Pirellis start cracking after 1 use, pirelli say it alright.

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Get yourself some pilot streets. They last forever. We'll over 8k miles. Recently someone I know got 17k out of his front...


At your weight I'd be going more along the lines of what yamaha recommend for use with a pillion as well which if memory serves me correct is around the 40 mark front and back.

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