Can I use a 9 speed cassette on my 8 speed set up?
My current cassette is warn and needs to be replaced. I'd like to slowly upgrade the parts to a 9 sp.
Can I adjust the derailer so it doesnt use the smallest gear?
Sorry about the stupid question, I don't want to waste $80-$100 on another XTR M950 if I can slap on a M960.
9 speed cassette on a 8 speed rig?
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Frankie - B
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No, you can't
9 speed uses smaller cogs. The chain has to be smaller too. Better save a bit longer and get yourself the full setup!
9 speed uses smaller cogs. The chain has to be smaller too. Better save a bit longer and get yourself the full setup!
If you want to see 'meh' content of me and my bike you can follow my life in pictures here!'Tape was made to wrap your GF's gifts, NOT hold a freakin tire on.'
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Frankie - B
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no, not necesary 
only rear mech, chain and rearshifter. Most modern rings are already smaller.
only rear mech, chain and rearshifter. Most modern rings are already smaller.If you want to see 'meh' content of me and my bike you can follow my life in pictures here!'Tape was made to wrap your GF's gifts, NOT hold a freakin tire on.'
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Frankie - B
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7 speed uses a shorter body. 
If you want to see 'meh' content of me and my bike you can follow my life in pictures here!'Tape was made to wrap your GF's gifts, NOT hold a freakin tire on.'
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danielgillett
You can use 9 speed chainrings with 8 speed. But you can not use 8 speed chainrings with 9 speed.
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Frankie - B
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that's chainrings, not cogs?
If you want to see 'meh' content of me and my bike you can follow my life in pictures here!'Tape was made to wrap your GF's gifts, NOT hold a freakin tire on.'
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danielgillett wrote:You can use 9 speed chainrings with 8 speed. But you can not use 8 speed chainrings with 9 speed.
? sure you can. Buddy of mine uses an ancient TA-crank (when that was built it was still the time of friction-shifted 7spd) with Campagnolo 10-speed without any problems.
I run a Campa 10-speed setup with a 9-speed DA chain and a FSA Shimano 9-speed crank.
That whole compatibility is a little overrated, if you ask me. There are issues, but they concern shifters, rear derailleur and cogs.
There may be exceptions, but cranks are typically not a problem.
Martin
