2-piece design allows for replaceable aluminum cogs, lower cost of maintenance, and less waste

Built extra tough and E*spec rated for E-bike use

e*thirteen’s wider range and 9 tooth cog allows riders to run a 2 tooth smaller chainring for more clearance and reduced weights

Specs: XD/XDR Driver required, 9-50T, 12 spd, 10 Steel / 2 Alloy Cogs, Shimano/Sram/Trp 12sp, 556% range, 7075 AL / Steel

Weight: 412g

Gearing: 9,11,13,15,17,20,23,27,31,36,42,50