Sprockets Sanding options for sprocket

[mattysids]

Are there any products out there that attach to a drill that could sand out a sprocket to make it larger?

If there is none, what type of dremel would be appropriate for this type of work?

 

[wheelbender6]

It will be slow going with an electric dremel. One of the cutting bits will work better than a grinding stone.

 

[TREEWK]

If You Could Find Some Hobby Type Fellow With A Lathe In His Garage, Then It Would Run True. Maybe A Machine Shop Would Treat You Good. If It Fit Your Hub Perfectly, It Would Solve Some Problems. Good Luck. Ron

 

[Dilly Bar Rob]

You could also get a carbide bit meant for a die grinder and stick it in a drill. These bits RIP at high rpm, they will make a bigger opening in the sprocket in no time.

Whatever you use, be sure to wear eye protection!

 

[Just_Gasit]

I just used a file that has one side with a curved surface. Pretty common for a file. I didn't have very far to go and it wasn't a problem making it even. The biggest problem with the kit sprocket is that it's poorly made to began with. I spent more time filing the teeth with a small round file to get the chain to feed even close to correct. Finally, I just bought a clam shell adapter and sprocket from Manic Mechanic. Best 60 bucks I've spent on the bike.

 

[guecha]

I TRIED TO DREMEL BIGGER HOLE AND DID IT ON 2 SPROCKETS, BUT WHEN I USED ROUND FILE BY HAND IT IS FASTER AND NO DREMEL STONES TO BUY ( WENT THRUOGH 3 ON EACH SPROCKET)

 

[Porkchop]

A pneumatic (air powered) file with a rat tail (round file) attached to it might do the job. If I were going to use one, I'd draw or scribe a circle on your sprocket and get as close to the drawn/scribed circle as close as I could. It will leave a rough jagged edge Then I would take a Dremel with a grinding stone and clean it up the best I could. From my experience, Dremels work great, but the stones and cutting wheels don't go far or last very long.

 

[Al.Fisherman]

Here is how I did mine. There must be someone you know that has some type of drill press. This took me an estimated 10 minutes after I set it up.

http://www.youtube.com/watch?v=_HPtY0OmS8Y

 

[professor]

Al, please wear glasses around your shop and especially when you use power tools on Youtube! Kids are watching! Any kind of glasses are better than nothing.
I work at a company that has thousands of employees and an intense saftey program and every day I get e-mails on current injuries. Mostly hand injuries and I haven't noticed any eye injuries because they are fanatacial about wearing eye protection.
In my shop (garage) I am real uncomfortable until I put glasses on.