Rear Drive Sprocket

RedB66

Active Member
Dec 28, 2007
1,023
1
38
Sunshine State
I orderd a 36T BMX sprocket from Ebay for $4.99. It was listed as a BMX sprocket. Anyway....the hole in the sprocket for one-piece crank, lines up perfectly and I drilled an additional eight holes for the mounting hardware. The sprocket works fine and cost wise...about 10% of other sprokckets I have found/used. Just a tip/idea for those looking for sprockets.
 

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deacon

minor bike philosopher
Jan 15, 2008
8,117
3
0
north carolina
I orderd a 36T BMX sprocket from Ebay for $4.99. It was listed as a BMX sprocket. Anyway....the hole in the sprocket for one-piece crank, lines up perfectly and I drilled an additional eight holes for the mounting hardware. The sprocket works fine and cost wise...about 10% of other sprokckets I have found/used. Just a tip/idea for those looking for sprockets.

But where did you get the gasket material,,,,
 

deacon

minor bike philosopher
Jan 15, 2008
8,117
3
0
north carolina
Someone needs to sell those gaskets. I'm telling you I have been looking for one since almost the first week after I build my first bike.
 

Bikeguy Joe

Godfather of Motorized Bicycles
Jan 8, 2008
11,843
237
63
up north now
Deacon- make a reasonable facimile out of some agricultural belting or a couple layers of leather glued together with contact cement. Use a leather punch or make your own with a proper sized piece of copper or aluminum thin wall pipe, sharpened with a utility knife blade to make the holes.
 

Bikeguy Joe

Godfather of Motorized Bicycles
Jan 8, 2008
11,843
237
63
up north now
Red- How would a shadetree such as myself drill the bolt pattern accurately? Use an old sprocket for the pattern?