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Discussion Starter · #1 ·
I know the (89-94) front drive sprockets are a common fit w/ the Katana and RF900. Assume they're also a common fit w/ the W/C 600s and 750s. Does anyone know if the spline pattern is the same for the 2k bikes? My Suz Parts Xreference only has up to '98-99 bikes.

Reason I ask is I'm trying to figure out my options for spacing the front drive sprocket 1/4" to the outside in order to accomodate a the 'Busa's wider rear wheel/tire. There's a company that makes 1/4" offset sprockets for the newer gen 750/1000s and the 'Busa, but I don't know if the spline pattern/size is the same between the years.

The 'Busa wheel is 1/2" wider than stock 1100, pushes the rear sprocket 1/4" to the left based on measurements since the wheel is centered. I don't want to trim 1/4" off the sprocket carrier if I don't have to. Other options are to put a 1/4" spacer behind the front sprocket, which presents problems w/ teh locking nut -- may have to mill a mit of the backside off and make it a little thinner. There's about 1/16-1/8" of thread showing in front of the face of the nut, so the sprocket can be wider... but to space it 1/4" to the outside puts the locking face of the nut off the threads, hence needing to remove part of the backside and make it a little thinner (1/8" maybe?).

The offset sprockets aren't dished, just w/ a integral spacer cast into the sprocket face (http://www.dscbikeshop.com/products/FRONT-OFFSET-SPROCKET.html). If I retain a stock-type sprocket and space it out, only way I can think of making a spacer is to have another sprocket milled down since it'll have to have the splines in it and keep it off the motor case. In effect make a 1/4" splined collar that will fit on the mainshaft 1st, then the front sprocket on over the top of it.

Soliciting thoughts from all y'all on this.
 

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I'm thinking you could get some kind of collar, just make sure it fits good! I dont think you need it to be splined though. Run the sprocket right up to it.
 

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i dont think you would need the splines either. are you concerned about a washer type spacer turning on you while driving? if its torqued down enough it shouldnt be a problem.
 

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You could weld a smaller sprocket behind the sprocket you intend to use, then machine out the center of the front sprocket. In effect you have made your own custom offset sprocket.
The nut will contact the rear sprocket and keep everything tight while the front sprocket will accept the offset chain.
Or...you can go see THIS guy for a custom fitment.
 

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Discussion Starter · #6 · (Edited)
Goto http://www.sprocketspecialists.com/ProductSearch2.aspx and look at the front sprocket part #s for 530 chains. They are all 514 for 530 chains, and 514x for 520 chains.
Thx. Appears that most of the newer gen GSXR 1k, Hayabusa, and TLRs all use the exact same spline pattern as my 1100 does (P/N 514). As do all the oiler and WC GSXRs. Suzuki was fairly smart on that one for ease of common use. Now it's a matter of tracking down a 1/4" offset sprocket; found one w/ a huge backing plate than can be milled out on the face to accomodate the lock nut by a decent machinist, sprocket is $59.
 
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