Who uses a expander gear on a 1x10 29er?
My concerns are,
will the chain, rear mech require some modification?
I currently run my 29er with a 36 chain ring with a XT 10 speed 11-36 cassette but on the really long, hard and steep Yorkshire rides, towards the end of the rides I wish I had that old Granny gear to drop into.
Other than changing the front ring to a smaller one would a 40t rear cog be worth a try?
Who uses one and how do you find it?