Author Topic: Sprocket threads  (Read 1397 times)

fuzzy

Sprocket threads
« on: 01 June, 2010, 06:06:59 pm »
Are all sprockets cut with the same thread pattern?

I ask cos my sprocket started slipping the other evening. On inspection, the thread on the hub is stripped and the sprocet thread seems a bit unhealthy >:(

I need to get a new 16 tooth sprocket to put on the other side of the wheel.


rogerzilla

  • When n+1 gets out of hand
Re: Sprocket threads
« Reply #1 on: 01 June, 2010, 06:12:33 pm »
Almost.  There is an Italian thread which is marginally different.
Hard work sometimes pays off in the end, but laziness ALWAYS pays off NOW.

fuzzy

Re: Sprocket threads
« Reply #2 on: 01 June, 2010, 07:11:42 pm »
Thanks Roger.

How do I know which to get?

rogerzilla

  • When n+1 gets out of hand
Re: Sprocket threads
« Reply #3 on: 01 June, 2010, 09:46:40 pm »
I don't think it will be Italian, not for a moment.  The thread is 1.37" x 24 TPI.  Same as an English LH BB cup, same as a freewheel.
Hard work sometimes pays off in the end, but laziness ALWAYS pays off NOW.

fuzzy

Re: Sprocket threads
« Reply #4 on: 01 June, 2010, 10:01:34 pm »
Thanks.