Rear Sprockets

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headcoats
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Rear Sprockets

Post by headcoats » Mon Jun 12, 2017 5:14 pm

Contacted B and C Express about a Renthal rear sprocket for the KR1S and they said they haven't had them for 10 years now :shock:
but can make one from a blank for about £44 :shock:
I didn't realise they must be a unique fitment for the KR1S bikes ?

A steel JT rear sprocket is £20 posted
Can it yer old boiler

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KR-1R
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Re: Rear Sprockets

Post by KR-1R » Fri Jun 16, 2017 1:42 am

134mm ID, 156mm PCD, 39-43 teeth
shared with the ZXR250 (48teeth) BUT its the number teeth much less than the ZXR

if you don't mind slotting the holes 2mm inwards you can use CBR600/CBR1000 2000 onwards
134mm ID, 160mm PCD - BUT MAKE SURE ITS not the standard 525 thickness but the 520 optional conversion width
http://www.jtsprockets.com/catalogue#search-results

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James P
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Joined: Mon Mar 11, 2013 10:47 am
Location: Sydney, Australia

Re: Rear Sprockets

Post by James P » Sun Jul 02, 2017 10:14 am

headcoats wrote:
Mon Jun 12, 2017 5:14 pm
Contacted B and C Express about a Renthal rear sprocket for the KR1S and they said they haven't had them for 10 years now :shock:
but can make one from a blank for about £44 :shock:
I didn't realise they must be a unique fitment for the KR1S bikes ?

A steel JT rear sprocket is £20 posted
If you want an aluminium sprocket, how about the Afam 17300 for £27.70? http://www.biketorqueracing.co.uk/?i=Se ... ts&s=17300

Regards,
James

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