Yet Another Cycling Forum

General Category => Freewheeling => Velo Fixe => Topic started by: fuzzy on 01 June, 2010, 06:06:59 pm

Title: Sprocket threads
Post by: fuzzy 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.

Title: Re: Sprocket threads
Post by: rogerzilla on 01 June, 2010, 06:12:33 pm

Almost.  There is an Italian thread which is marginally different.

Title: Re: Sprocket threads
Post by: fuzzy on 01 June, 2010, 07:11:42 pm

Thanks Roger.

How do I know which to get?

Title: Re: Sprocket threads
Post by: rogerzilla 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.

Title: Re: Sprocket threads
Post by: fuzzy on 01 June, 2010, 10:01:34 pm

Thanks.