7 SPEED FREEHUB REPLACEMENT - ADVICE

ISC23

Dirt Disciple
Hello, sorry about the second Advice thread, but piecing together some more old bits.

I've a rear wheel with shimano 7 speed freehub, can this be replaced to run shimano 8 or 9 speed as I know the cassettes are different?

thanks

Iain
 
the options you have are to use say only seven cogs from a 9 speed cassette on your freehub. you then get the 9-speed index spacing, but will only have 7 gears.

alternativley, you can replace the freehub with a 9 speeder. but you will face some problems - the axle & skewer might not be long enough for the extra width, and you will need additional spacers. The wheel will also need redishing (centering-up) cos the rim wont be central to the axle which is now wider on the freehub side.
 
+1

You'll have to re-space the axle, dish to suit, and hope you have enough bottom adjustment on your derailleur.
 
If you use a 9 speed cassette as a starting point and remove the largest cog and spacer, it's EXACTLY the same size as 7s...which is handy. :D

You need to start with cheaper cassettes (105 or lower) as the upmarket ones have an alloy cog carrier which doesn't split.
 
hamster":uplbvgsl said:
You need to start with cheaper cassettes (105 or lower) as the upmarket ones have an alloy cog carrier which doesn't split.
what about ditching the smallest cog? Or is that different? (please dont read the last question as sarcastic, its a genuine question)
 

Latest posts

Back
Top