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Size chain when changing sprockets?

5 posts · Started by Dutch · 07 Mar 2011

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Good morn'un everyone,

I took the SDR out for a nice (albeit still very cold) first run on saturday and absolutely love it! I didn't find most of the things people have mentioned before an issue (such as fueling - maybe i got a good one or maybe because im used to twins?) the seat was comfy enough for the couple of hours i was on it and the suspension is awesome didn't really find it through you over bumps and i wasn't going very fast as i hate cold roads (not to mention mud and grit) but it feels confidence inspiring!

Anyway only thing i miss from my RSVR was the down low acceleration. When i got my RSVR the it was geared down (or up i never get this right?) alot (stock is 17-42) and it was running 15- 44 and i thought it would be out of control but i absolutely loved it! And top speed (on track of course ) was still over 140 indicated which was plenty for me.

So after this long nattering post i'm basically asking a (hopefully) simple question.
If im correct stock gearing on my bike is 16 - 38 with a 108 525 chain?

I am thinking of getting the sexy orange supersprox rear in a 41 and keeping the 16 front so would be 16-41 my question is what size chain do i need to go up to, i know you can swap stuff on the back but id rather get a longer chain will 110 be enough or will i need to go upto 112?

Cheers dukers
The standard chain is ok with a 16-40 gearing. With a 41 rear sprocket I dont know. But it must be close
Cheers mate if the standards ok i might have to go up 2 links then to a 110.

Just been looking and i don't know how KTM can charge £30+ more for the KTM supersprox than a standard supersprox (only difference being orange instead of gold)

Looks like i'll just go with the standard gold.

Also why is supersprox seemingly so cheap at £10 when most other fronts seem to be around £25?
Is theres made of cheese or something?
You can flip the axel spacer blocks around to bring the rear wheel in closer to the swingarm pivot and make room for a larger rear sprocket on the OE chain. I run 16:40 now and reckon I could easily run 16:42 on the standard chain length.

It's no bad thing to slightly shorten the wheelbase too.
Cheers dutch,

I bit the bullet and had to buy a brand new sprocket carrier as mine is cracked (noticed after i bought it) which was a pain as ive seen old links to ones going for £20 or less so buying one for £180 was painful.

Anyway got a supersprox stealth 16 front and gold 41 rear (couldn't justify the extra £30 for a orange one) and got a DID gold X-ring chain for a bargin but in a 114 link so i'll just remove any links i don't need. Sorted

Good to know about moving the adjusters tho...
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