e*thirteen Helix Race Alloy e*spec Crank Arm Set - DUB 12mm Offset 160mm Self Extractor BLK CheckoutSpec= Tiagra 4 mm or 22

4 mm or 22

SIZES: 147

5 (650B) & 700c wheels with disc brakes

Color Carbon Grey Size Category Youth Primary Color Grey Size JM

6 / IS42/30 Color Blue Weight 93g Size 1-1/8" (28

e*thirteen Helix Race Alloy e*spec Crank Arm Set - DUB 12mm Offset 160mm Self Extractor BLK CheckoutSpec= Tiagra 4 mm or 22A high performance weight optimized alternative to carbon fiber for riders who prefer alloy cranks. These 24mm ISIS interface cranks are engineered for compatibility with Bosch Gen 4 Brose S Mag TQ HPR 50 Fazua Yamaha Maxon and Specialized Brose motor systems. They come in short lengths starting at 155mm for improved pedal clearance and are tested to E Enduro standards. Color Black Defined Color Black