training wheel question

[ibruegge]

Hello,

have a 8 spd mtb, and want to get an additional rear wheel to use on my indoor trainer - got offered a wheel & 9 speed cassette. as I don't really use the gears while on the indoor trainer (rather the different resistance settings), I am wondering if I have to change the cassette (i.e. spend cash..) to an 8 speed, or if it is possible / recommendable to run with the 9 speed cassette (assuming that I just use one gear.

 

Thanks for advice & happy weekend everyone.

[stewie911]

8sp chains are wider than 9sp, so you might have a problem. Not sure.

 

If you only use one gear, then you can use only one cog of the casette if some of them are loose en use spacers to keep it in place.

 

Spacers you can make from a metal pipe.

 

But first put the chain on the casette and if there is clearance then it should not be a problem.

[JA-Q001]

Sell the 9 speed cassette and buy a cheap 8spd. Or sell the 9 and make the wheel a ss for the trainer. Your lbs should be able to help.