e*thirteen Helix Race Cassette - 12-Speed 13-52t Gray Model-SID SL Ultimate Flight Attendant and a full metal edge

and a full metal edge for security on hardpack and ice

The Z8 chain features inner plate chamfering and a z-bridge shape making it suitable for a variety of riding styles

Press-fit end caps allow tool-free maintenance and conversion Rear Axle 12mm Thru x 148mm Cassette Body Type Shimano Micro Spline Color Black Skewer Included No Bearing Type Sealed Cartridge Defined Color Black Spoke Interface Straight Pull Hub Drilling 28 Hub/Brake Compatibility Center-Lock Disc

Vendor Thomson Manufacture Number 117101-40 Model Name Carbon Road Bar Category Handlebars

Torque 4Nm with T20 tool

e*thirteen Helix Race Cassette - 12-Speed 13-52t Gray Model-SID SL Ultimate Flight Attendant and a full metal edgeThe e*thirteen Helix Race 12 speed 13 52t cassette features close ratio gearing specifically engineered for steep terrain where climbing time and shift frequency is high and descents are gravity driven. By placing more gears where riders spend the majority of the time they can optimize cadence and torque for improved climbing efficiency with smoother shifts under load for both analog and eBikes. Close ratio gearing cassette for improved shifts under