11 speed cassette.

[Crandoggler]

Shimano/SRAM compatibility please. Only for use on a turbo. So cheap as possible.

 

[vickster]

Seems reasonable enough but you would need to check what ratios the rear mech can take which you don't specify

http://www.ebay.co.uk/itm/Shimano-U...00-11-Speed-/231662322854?hash=item35f02684a6

Or new http://www.chainreactioncycles.com/...gclid=CMnvwJHWvccCFWsUwwodWeYOvQ&gclsrc=aw.ds (with Quidco and BC discount if s member)

 

[Crandoggler]

Yeah Merlin do the 105 for £20. Just want a cheap worn out one really. Only need it for the turbo trainer. So I'll only use a few gears. I've got a 11-32 so, ideally the same, but not overly fussed.

May just bite the bullet on the 105 cassette if nobody has an old one.

Cheers!