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-   -   bt-021 front, is uneven wear normal ? (http://forums.sv650.org/showthread.php?t=157595)

tom46 16-09-10 05:57 PM
bt-021 front, is uneven wear normal ?
 
2 Attachment(s)
Im 16 stone in kit, bike is a k9 650 sport wich has standard front forks pre-load is set one full turn back from max.

Was just wondering if its normal for the shoulders on these bt-021`s to be slick wel before the rest of the tire still have 2.5mm center & 5mm at far edge of tred but as u can c from pics shoulder are as slick as race rubber.

Would like to know if this is a ridding style or set-up issue as have a new set of 021`s waiting to be fitted?

Many thanks for your knowledge again
Tom

husky03 16-09-10 05:59 PM
Re: bt-021 front is uneaven wear normal ?
 
strange-hows tyre pressures etc

martin15s 16-09-10 06:08 PM
Re: bt-021 front is uneaven wear normal ?
 
tyre pressures/suspension

tom46 16-09-10 06:23 PM
Re: bt-021 front is uneaven wear normal ?
 
As I'm a big lad should I increase tyre pressure ?? I've been running with 33front & 36 rear??

But the rear has squared off as u would expect across the center just like the front & rear did on the standard dunlops !!!

NedSVS 16-09-10 06:29 PM
Re: bt-021 front is uneaven wear normal ?
 
Quote:
Originally Posted by tom46 (Post 2371703)
Im 16 stone in kit, bike is a k9 650 sport wich has standard front forks pre-load is set one full turn back from max.

Was just wondering if its normal for the shoulders on these bt-021`s to be slick wel before the rest of the tire still have 2.5mm center & 5mm at far edge of tred but as u can c from pics shoulder are as slick as race rubber.

Would like to know if this is a ridding style or set-up issue as have a new set of 021`s waiting to be fitted?

Many thanks for your knowledge again
Tom
This is normal wear for a front tyre; they always wear most at about the angle you lean to most often. People who avoid motorway, trunk road, town riding and use mostly twisty roads will notice this most.

Bluepete 16-09-10 06:45 PM
Re: bt-021 front is uneaven wear normal ?
 
I think you may be going into bends off the throttle. This pushes the front wheel whilst it's leaning, so scrubs the shoulders.

If that's what you are doing, try setting the bend up better, then power through it, pushing the bike with the back wheel, rather than the back end pushing the front.

Tyre pressures and forks sound fine.

Pete ;)

yorkie_chris 16-09-10 07:20 PM
Re: bt-021 front is uneaven wear normal ?
 
it happens

Wideboy 16-09-10 07:28 PM
Re: bt-021 front is uneaven wear normal ?
 
my 021's have always done that on the front, i find them a crap tyre anyway

sam anon 16-09-10 09:42 PM
Re: bt-021 front is uneaven wear normal ?
 
Quote:
Originally Posted by tom46 (Post 2371719)
As I'm a big lad should I increase tyre pressure ?? I've been running with 33front & 36 rear??

But the rear has squared off as u would expect across the center just like the front & rear did on the standard dunlops !!!
I think the recommended pressures for BT021s is 36/42, non?

SV650Racer 18-09-10 09:29 AM
Re: bt-021 front is uneaven wear normal ?
 
Yup you may want to run a slightly higher pressure. Bridgestones do though seem to have a tendancy to wear like that.


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