Hey guys,
My stock chain has stretched passed the limit at 14k miles so I ordered a DID chain/sprocket set from Chapparral. It comes with Sunstar steel sprockets (16/43) and DID's X ring, VRM, hi-perf chain. I have a few questions:

1. The DID chain came with 112 links (compared to 102 stock). I know I need to add a couple for the bigger rear sprocket but certainly don't need 112 links, so can I just use the chain break tool to eliminate a few links, then install the master link at the appropriate location?
2. Is my assumption correct that since I'm going from 41 tooth rear to 43 that the chain will need 2 extra links compared to stock.....so 104 vs. 102? Or does it need a couple more due to increased diameter as well.
3. Does 14k miles sound about right out of the original chain? I've done 3 track days on it, plus mostly commuting miles to work (pretty easy highway miles). I'm just curious if it stretched premature at all, and if so, I'll have to lube it more often than I did.

Thanks.

 

I think the stock chain length (102 links) is enough to handle the extra 2 teeth on the rear, but I haven't done it so I don't know for absolute certain. Hopefully somebody who has done it will chime in. It looks to me like there's more than enough front to rear adjustment of the rear axle to compensate for the larger sprocket.

 

I might be wrong, but I think you'll only need to add one extra link (or pair of links, inner and outer). You are going up 2 teeth in back, but the chain only rides along half of the sprocket, so only one is needed.

 

Been there, done that...the stock chain length is fine. Besides, the slightly shorter wheelbase will quicken up the steering a bit.

cheers
Mikstr

 

Dunno, but if he's like me, I've got my suspension and steering just where I like it. I wouldn't want it to change for fear of instability and head shakes. Longer wheelbase allows the bike to put the power down without wheelying and adds stability. But, if you want the extra quickness, then have at it.

 

Greg, just FYI, I have the usd forks which are shorter and the shorter wheel base from the chain and sprocket conversion. While the steering is MUCH quicker, I've yet to have any stability issues and that's at the track or on the street....even the occassional crossed up wheelie.