New sprocket issues......

[robndeb]

Well, I thought I would replace my tattered 61 tooth rear sprocket with a new 65 tooth one, hoping to help taking off in first gear a little easier.  So off came the original chain and rear sprocket. Then I installed the new sprocket, and as I was fitting up the new chain, something wasn't lining up.  I was a half link off, and the tensioner didn't have enough adjustment to let me either remove another link or to take up the slack if I went a link longer.  My front sprocket is a 13 tooth. If I put a larger front sprocket on it, I could make up some of the slack and just go a link longer on the chain. Or if I go to a 12 tooth front sprocket, Maybe I could go one link shorter. I've read that it isn't good to run this small of a countershaft sprocket. Will I lose my lower gearing goal if I go one tooth higher on the countershaft sprocket? From a 13/61 combo to a 14/65 combo?

[Punkur67]

Just divide the rear sprocket by the front and that will give you your gear ratio. 13-61 = 4.69
14-65= 4.64
12-65= 5.41
 
The higher your final # the more bottom end you will have but the less top speed. Top speed is not an issue with the streetbike cars though. I ran a 13-72= 5.53 in my car with a 30" tire.

[455bird]

[455bird]

Well I also made my carrier adjustable. I can move it 2 inches so my chain length is not a problem

[robndeb]

I may try both scenarios, I'll try a 14 tooth and see if the links line up and I'll try a 12 tooth also. I haven't found anyplace that sells the 12 tooth countershaft sprocket. Any ideas?

[SPEC]

Have you tried Dennis Kirk?

[405dentech]

You could try Sidewinder also. But I think they are around $75 each. What motor are you running? Lots of bikes interchange sprockets I believe.

[Yoshi]

Going up 1 tooth on the front is equal to going down 3-1/2 to 4 teeth in the rear. Can you swap out the 65 tooth for a 63 or 64 tooth?

If you have a busa, I have 3 or 4 12 tooth sprockets here, I ran them for years with no problems, even ran an 11 tooth once.  Just gotta keep the chain dry lubed....

[Punkur67]

I had to get my sprocket custom make. I found a 13 tooth with the same chain pitch and machined the center splines of my old sprocket out and tig welded them together.

[robndeb]

Going up 1 tooth on the front is equal to going down 3-1/2 to 4 teeth in the rear. Can you swap out the 65 tooth for a 63 or 64 tooth?


If you have a busa, I have 3 or 4 12 tooth sprockets here, I ran them for years with no problems, even ran an 11 tooth once.  Just gotta keep the chain dry lubed....

I need the car running for Christmas in Glamis, and there isn't time for me to get another sprocket in on time.
Yes, my car is a Hayabusa. I am very interested in one of your 12 tooth sprockets. Why the dry lube?

[Admin]

Yes, my car is a Hayabusa. I am very interested in one of your 12 tooth sprockets. Why the dry lube?

Anything wet will attract sand and dirt...

[robndeb]

My new chain(530ZZZ) came all gooped up in the lube it came with, looks like white lithium grease. should I wipe off as much excess as possible?

[Admin]

My new chain(530ZZZ) came all gooped up in the lube it came with, looks like white lithium grease. should I wipe off as much excess as possible?

its all dried on there isnt it? how many links is your chain?

[robndeb]

It is all sticky, like grease. Not dry. The chain I bought is 112 links, I haven't cut it down yet, I still need to go either one tooth up or down on the countershaft sprocket first, to get in the adjustment range of my tensioner.

[Admin]

It is all sticky, like grease. Not dry. The chain I bought is 112 links, I haven't cut it down yet, I still need to go either one tooth up or down on the countershaft sprocket first, to get in the adjustment range of my tensioner.

what length are you cutting it to, I think i have a 55 or 60 krause sidewinder here somewere...