Bicycle Mechanics - Shimano 9sp to 7sp hub question

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View Full Version : Shimano 9sp to 7sp hub question


cs1
07-15-06, 06:30 PM
Can you run a 7 sp cassette on a current 9 sp freehub with a spacer? If not can you swap a 7 sp freehub body on the hub and redish the wheel? Sounds crazy but I have an almost new Deore 7 speed group that I want to swap out on a cross bike project.

Tim


Sheldon Brown
07-15-06, 06:56 PM
Can you run a 7 sp cassette on a current 9 sp freehub with a spacer?

Sure. You need a 4.5 mm spacer. Any decent bike shop should be able to provide this.

Sheldon "Space, The Final Frontier" Brown

+----------------------------------------------------+
| I reckon there's more things told than are true, |
| And more things true than are told. |
| --Rudyard Kipling |
+----------------------------------------------------+

cs1
07-15-06, 07:13 PM
Sure. You need a 4.5 mm spacer. Any decent bike shop should be able to provide this.

Sheldon "Space, The Final Frontier" Brown

+----------------------------------------------------+
| I reckon there's more things told than are true, |
| And more things true than are told. |
| --Rudyard Kipling |
+----------------------------------------------------+

Something told me you would know the answer to this. Thanks for the help.

Tim


acorn_user
07-16-06, 04:43 PM
I doubt this would meet with universal approval, but i am doing what you want to do. I am using a knackered cog from an old cassette as the spacer. Works just as well so long as you don't look at the ugly old thing!
Who needs 9 speeds anyway! (he says clutching 10 speed centaur bits)

Grand Bois
07-16-06, 05:05 PM
This one is a seven speed with a nine speed wheel. I think I probably got the 4.5 mm spacer from Sheldon.

http://community.webshots.com/photo/549737266/2846979690068014369opcapm

The rear derailer and front hub are Ultegra. I like to be different.