e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH Gen4-Brose S Mag-TQ HPR50 26.5mm Offset 160mm Self Extractor BLK Model=Broc v2 BMX Stem }Shimano BB-UN300 Bottom Bracket -

}Shimano BB-UN300 Bottom Bracket - English 73 x 113mm Spindle Square Taper JIS

Additional springs sold separately to fine-tune and adjust for rider preference

Color Black Defined Color List Black

Brake Type Disc Color Champagne Supernova Defined Color Gold Fork Type Rigid Frame Material Steel Frame Type Rigid Front Axle QR x 100mm Mfg Size Large Rear Axle QR x 145mm TT (Effective) 615 Wheel Size 29" Platform Ogre

spindle CrMo size 9/16" color oil slick weight 355g

e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH Gen4-Brose S Mag-TQ HPR50 26.5mm Offset 160mm Self Extractor BLK Model=Broc v2 BMX Stem }Shimano BB-UN300 Bottom Bracket -Helix R e*spec AL Crank Arm Set 160mm BOSCH Gen4 Brose S Mag TQ HPR50 with Self Extractor Bronze. A 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