On Monday, December 18, 2017 at 3:05:05 PM UTC+8, drew wrote: > > Ok, here are the ordered parts: > pairing a 9 speed 11-40t cassette with a riv silver double crank and an xt > long cage derailleur. > > Should I be using a roadlink sort of device? Is this knowable without > trying first? If I do try, what should I be looking for to tell me if I'm > good or if I need a roadlink? >
Too many unknowns at this time, even if you'll probably need one with a 40T largest cog. Which version of the XT derailleur do you have? They vary quite a bit in the largest cassette cog they can handle. Also what bike, because bikes often have varying lengths of the derailleur hanger (especially the replaceable ones). If you have the parts, why not try it without the roadlink? The worst that can happen is that the top pulley will rub against a large cog and then you'll know you'll need a roadlink. Chain wrap and chain length will be the same either way. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at https://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.