Bicycle Mechanics - difference between the 7 or 8 speed rear der guide pulley and the 9 speed?

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Rman
08-01-05, 10:28 PM
What is the difference between the 7 or 8 speed rear der guide pulley and the 9 speed rear der guide pulley? One difference is the 7 or 8 speed guide pulley is 10 tooth and the 9 speed is 11 tooth. Are they interchangeable?

Edit: Sorry... Shimano Ultegra rear der. I want to put 9 speed pulleys on 7 speed der.

phidauex
08-01-05, 11:46 PM
You may want to specify what brand, year, and model of derailleur you are talking about. There are only about 10,000 possibilities.

But just to toss out some random maybe-related info, Shimano 7 and 8 speed guide pulleys have no problems with 9 speed chains or drives. Whether or not they are interchangable for replacement purposes is unknown from your post, though I wouldn't count on parts that are 5 years apart having many interchangable parts.

peace,
sam
sydney
08-02-05, 06:33 AM
What is the difference between the 7 or 8 speed rear der guide pulley and the 9 speed rear der guide pulley? One difference is the 7 or 8 speed guide pulley is 10 tooth and the 9 speed is 11 tooth. Are they interchangeable?

Edit: Sorry... Shimano Ultegra rear der. I want to put 9 speed pulleys on 7 speed der.If they fit, do it.

rmfnla
08-02-05, 07:53 AM
If they fit, do it.

Exactly!

And if they don't fit, probably nothing will explode.