e*thirteen Helix Core e*spec Alloy Cranks Variant:Bosch CX Gen4/5 / Brose S Mag *BiO-Matter is made from bio-materials

*BiO-Matter is made from bio-materials having at least 56% bio-based carbon content (representing ratio of castor oil to fossil sources)

170 x 35 mm

- 290 GSM Heavyweight Fabric

proving that going green doesn’t mean compromising on winning

Beyond unbeatable performance

e*thirteen Helix Core e*spec Alloy Cranks Variant:Bosch CX Gen4/5 / Brose S Mag *BiO-Matter is made from bio-materialsHelix Core e*spec cranks give your e bike an upgrade with high end integrity and aesthetics at a great value. Engineered for e MTB strength, so you dont need to worry about pedal strikes or holding back on your next gravity run. Forged aluminum arms keep you confident on the trail, while alloy self extracting crank bolts mean efficient routine service, and minimum added weight. Added details like pedal washers, molded impact boots, and e rider