I need to buy a new crankset. It looks like there's far more choice in 9sp-compatible cranksets than 8sp cranksets. But all the componentry on my bike is currently 8sp. So - will a 9sp crankset work on my 8sp derailleurs, chain and cassette?
I've done some research on the web and I'm now a little confused. Some people say a 9sp crankset will work just fine. Others say the 9sp crankset have reprofiled pick-up teeth that won't work with an 8sp chain so you have to change the chain to a 9sp chain. The 9sp chain will work fine with the 8sp cassette and derailleurs. But I'm not keen on the idea of a 9sp chain because I've read that 9sp components wear down up to twice as fast as 8sp components.
Help!
I currently have my eye on an M572 LX splined 9sp crankset and an XT ES71 splined BB.
I need to buy a new crankset. It looks like there's far more choice in 9sp-compatible cranksets than 8sp cranksets. But all the componentry on my bike is currently 8sp. So - will a 9sp crankset work on my 8sp derailleurs, chain and cassette?
Yes. There is no problem with that. -- Typoes are a feature, not a bug. Some gardening required to reply via email. Surrealism is a pectinated ranzel.
I need to buy a new crankset. It looks like there's far more choice in 9sp-compatible cranksets than 8sp cranksets. But all the componentry on my bike is currently 8sp. So - will a 9sp crankset work on my 8sp derailleurs, chain and cassette?
I've done some research on the web and I'm now a little confused. Some people say a 9sp crankset will work just fine. Others say the 9sp crankset have reprofiled pick-up teeth that won't work with an 8sp chain so you have to change the chain to a 9sp chain. The 9sp chain will work fine with the 8sp cassette and derailleurs. But I'm not keen on the idea of a 9sp chain because I've read that 9sp components wear down up to twice as fast as 8sp components.
A 9 speed crank will work fine with an otherwise 8 speed drivetrain. The only real difference is going to be a slightly smaller space between the two chainrings - hardly enough to get excited about.
Thanks for your advice, everyone. I've just placed an order for Shimano LX M571 splined crankset and a 121mm LX ES51 splined BB. Goody!
Jack.
"Mark Hickey" <[email hidden]> wrote in message news:[email hidden]...
Quoted message said:
Daniel Kelly \(AKA Jack\) said:
I need to buy a new crankset. It looks like there's far more choice in 9sp-compatible cranksets than 8sp cranksets. But all the componentry on
my
Quoted message said:
Quoted message said:
bike is currently 8sp. So - will a 9sp crankset work on my 8sp
derailleurs,
Quoted message said:
Quoted message said:
chain and cassette?
I've done some research on the web and I'm now a little confused. Some people say a 9sp crankset will work just fine. Others say the 9sp
crankset
Quoted message said:
Quoted message said:
have reprofiled pick-up teeth that won't work with an 8sp chain so you
have
Quoted message said:
Quoted message said:
to change the chain to a 9sp chain. The 9sp chain will work fine with
the
Quoted message said:
Quoted message said:
8sp cassette and derailleurs. But I'm not keen on the idea of a 9sp
chain
Quoted message said:
Quoted message said:
because I've read that 9sp components wear down up to twice as fast as
8sp
Quoted message said:
Quoted message said:
components.
A 9 speed crank will work fine with an otherwise 8 speed drivetrain. The only real difference is going to be a slightly smaller space between the two chainrings - hardly enough to get excited about.
I'm running 9 speed cranksets with 8 speed chains, cassettes and shifters on two MTBs right now - an XT FC-M760 w/ the integrated BB on my hardtail and an XT FC-M752 splined BB set-up on my full rigid MTB. I've noticed no real difference in shifting performance compared to full 8 speed setups. I'm also using a 9 speed front derailleur on the hardtail with no fuss.
The only real problem I have is with my splined XT crank/BB setup. It developed an intermittent clicking noise soon after I installed it last year that I just can't get rid of no matter what I do. All the trouble-shooting I've done (including wapping parts around from bike to bike and replacing the BB) has points directly at the splined BB/crank interface. No amount of cleaning, tightening or greasing gets rid of it permanently.
I'm running 9 speed cranksets with 8 speed chains, cassettes and shifters on two MTBs right now - an XT FC-M760 w/ the integrated BB on my hardtail and an XT FC-M752 splined BB set-up on my full rigid MTB. I've noticed no real difference in shifting performance compared to full 8 speed setups. I'm also using a 9 speed front derailleur on the hardtail with no fuss.
The only real problem I have is with my splined XT crank/BB setup. It developed an intermittent clicking noise soon after I installed it last year that I just can't get rid of no matter what I do. All the trouble-shooting I've done (including wapping parts around from bike to bike and replacing the BB) has points directly at the splined BB/crank interface. No amount of cleaning, tightening or greasing gets rid of it permanently.
Check the Powerlink (if applicable) on your chain (sporadic due to gear combos)???
"KLydesdale" <[email hidden]> wrote in message news:<[email hidden]>...
Quoted message said:
... The only real problem I have is with my splined XT crank/BB setup. It developed an intermittent clicking noise soon after I installed it last year that I just can't get rid of no matter what I do. ...
Loose pedal bearings sometimes sound like BB noise.
