Sprocket change

[bburg5]

I just changed froam a stock 14T front sprocket and went with the Renthal 12T front sprocket. My chain is the 520-104 and I need to know what length I will have to go to for the chain to be the right length.

 

Thanks

[bbcmudtruck]

You might be able to run a stock length chain with a 12t. If not you will only have to cut one link out.

[AKheathen]

or, you may end up needing a 1/2 link, like me. set it all up, slack the carrier all the way and see if you can skip 1 roller or 2 on the rear sprocket. i just dropped 1 tooth on the rear, and it'll just squeak by with a new chain all the way out, but will not slack enough to take out a full link (2 rollers)

just something to check before you chop a link

[bbcmudtruck]

or, you may end up needing a 1/2 link, like me. set it all up, slack the carrier all the way and see if you can skip 1 roller or 2 on the rear sprocket. i just dropped 1 tooth on the rear, and it'll just squeak by with a new chain all the way out, but will not slack enough to take out a full link (2 rollers)

just something to check before you chop a link

 

Yep, check it before you cut! How does that half link hold up for you? I was told by a local shop that half links are prone to breaking in high horse machines.?

[bburg5]

I just replaced the sprocket and noted a lot of slack in the chain without changing the carrier from the original 14T sprocket. I still have the stock 41T rear sprocket installed. Just thought some might have done it and found how many to take out. Thanks for the advice...

[Snopczynski]

I wouldn't run a 12t front sprocket. It will chew through the chain sliders and wear into the swingarm pivot end caps, as well as the swingarm pivot. It also puts a lot of stress on the chain trying to turn around that small of a pivot. keep the 13t in the front, and go up 3 teeth in the rear.