chain & sprockets

[gwcrim]

What would the possible consequences be if a guy used a 520 front drive sprocket w/a 530 chain?

 

[mxjosh]

The 520 and 530 are pitch measurements in the chain. You would be asking for something disasterous to happen.

 

[gwcrim]

The pitch is the same: 15.875mm. The inner width is what's different. 530 = 9.53 whereas 520 = 6.35.

 

[windfall]

With the extra width the chain could wander side to side increasing the chance of derailling, also you would increase the contact pressure at the tooth/link interface thereby accelerating wear on the chain.

 

[MikeT]

Ask Jaybird.

 

[gwcrim]

He he he...... I figured I would have already heard from him!

I know it's not right to do what I asked about but I was just wondering what the consequences might be.

 

[Jaybird]

The intimate measurements (plate thickness-pin width-etc..) can vary from chain to chain, but any "5" series chain will have a pitch length of .625"
(520-525-530)

What windfall said about side-to-side is pretty much on. I don't know that you would experience much difference tooth/link interface wise though, as the pitch is exactly the same on both 520 and 530 chain.
What you will see is a chance of rubbing the case, and it will probably have a hard time at the chain guide. Not to mention more room for rocks and stuff.

Best bet is to use the correct chain for the correct sprocket set-up.

 

[Ka0sngine]

I have a 1999 Yamaha YZ 400. What would be the optimum sprocket/chain set-up for this bike. What's the best type of chain to use (eg. rollers, bushings, seal type etc)?