9-speed mech on 8-speed cassette?

ben1777

I had an unfortunate incident yesterday in which my cassette for no apparent reason decided to eat my rear mech :shock: which has left it extremely twisted and unusable along with a snapped hanger. So my question is can I use a mech which says it is 9-speed on an 8-speed cassette?

I am considering something like this: (Shimano LX M580)
http://www.chainreactioncycles.com/Mode ... delID=6191

In the description it just says

Compatibility: 9 speed drivetrains

And also reviews seem pretty good on the 'Rapid Rise' any views?

Any help would be greatly appreciated

Cheers
Ben

supersonic

Will work just fine! Set up and adjust as normal.

RapidRise reverses the derailer spring, so it pulls to the smaller (big cogs) gears. Has the effect of reversing what the triggers on the shifter do. It can help downshifts, but its [personal preference really.

ben1777

Thanks for the help I think I might just give it a go then!