As of late I've been experimenting with mountain bike cassettes for gravel road riding. This set up is a Shimano 11-40 cassette, Sram Force CX1 rear derailleur with a 42t narrow ride chainring up front. I'm enjoying the super low (almost 1:1) low gear. It makes climbing almost (not really when you're a chubby boy like me) easy! The high gear may be a touch low for me, especially with any tail wind or loss of elevation. That's easy to rectify with a bigger chainring or using a xD driver and a cassette with a 10t cog. Racer types may find that they need a 46 or 48 t chainring to make this set up work. For the rest of us mortals, I suspect a chainring in the 38T to 42T will be a great compromise between easy climbing and reasonable flat road speed. What are your thoughts?
David is either found riding his bike or in his workshop working on them!