Cyclopath1000
Active member
2018 commencal meta power 650b..8 speed ex1 came with the bike..that stuff is crazy solid. On my second chain and cassette. Now with 3750 km. ..for a.moment I thought I needed a new rear deraillier but it was just my sloppy assembly after dropping the motor to replace the speed sensor...so at some point rear ex1 is us $150. Rear cassette is $310. The cassette is made out of tool steel. So I am thinking whether to continue to invest in the ex1 technology which I don't see any new bikes getting speced with vs going 12 speed Shimano which I believe they have an e-bike version. I don't think there is much of a price difference.. I'm not saying in any way that ex1 hasnt performed well..I'm just thinking it's future isn't there and I should go with the flow to 12 speed. I see no benefit form 48 vs 50 vs 51 teeth in the rear... It seems to go up any hill just fine. And I ride in NorCal and AZ where there are plenty of challenges. No lack of elevation.