92' stumpjumper (19") steerer length???

rjg123 · Apr 11, 2013

I have recently bought a tatty old 92 stump jumper that I plan to build up as a single speed!
As I bought it as a frame only I'm not quite sure what length steerer I need for the forks.

I know the forks i need are 1" and the steerer tube of frame is 90mm!

Any help would be appreciated!!

I'm after some forks in the correct length (or longer that I can cut down) and also a suitable heaset if anyone knows of any?

one-eyed_jim · Apr 20, 2013

rjg123":20vakzrv said:
I have recently bought a tatty old 92 stump jumper that I plan to build up as a single speed!
As I bought it as a frame only I'm not quite sure what length steerer I need for the forks.

I know the forks i need are 1" and the steerer tube of frame is 90mm!

The steerer of the original fork from my 19" '92 Stumpjumper Comp measures 125mm.

In general, you can work out the steerer length you need (for a threaded fork) by adding the head tube length to the stack height of the headset:

http://www.parktool.com/blog/repair-hel ... and-sizing

Your frame will have been made for JIS cups:

http://sheldonbrown.com/cribsheet-headsets.html

If you can't find a suitable JIS fork, you can have the head tube reamed and fit an ISO headset.

rjg123 · Apr 22, 2013

Cheers For that one eyed Jim!!!

Think i might have found some forks now!

92' stumpjumper (19") steerer length???

rjg123

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one-eyed_jim

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rjg123

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