Right - due to slightly annoying knee problems I'm finally giving up and looking to swap my XT737 cranks for a 170mm equivalent. Like for like would be ideal (assuming they did them in 170mm) but failing that - what else have you got? You can see some pics of the cranks on the last page on my Zaskar thread (see sig). In general though they are in excellent condition - really lovely. Slight wear to the taper on the drive side but I've shimmed it with a thin peice of wet n dry and it's perfect now. TBH with a slightly longer BB axle it prob. wouldn't have been a problem.
Anyway - what have you got then? Can post some more crank pics if you need them.
50's Phillips Trike (child's) || 94 Saracan MaxTrax
|| 96 GT Zaskar LE
|| 98 Diamond Back Viper Pro BMX
Wanted: lots of things. But my money has all gone... for now...