e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50 21.5mm Offset 165mm Self Extractor BLK MFPN=D33XRDR-R Model SP-509 UNO Suspension Post

Model SP-509 UNO Suspension Post Travel 45mm Diameter 27

It's been engineered it with the largest cutaway for the greatest relief channel possible remaining supportive and flat at the rear so you have a good platform for sustained seated climbs

Model SLR Carbon Fill Idmatch S1 Rails Carbon Top Handmade Covered LFV Color Black LxW (mm) 242x130 Weight 135g

5 hrs (Low-5 lm) and up to 11 hrs (Superflash™-70 lm)

An oversized bottom-bracket and chainstay area increases pedaling stiffness and drivetrain efficiency

e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50 21.5mm Offset 165mm Self Extractor BLK MFPN=D33XRDR-R Model SP-509 UNO Suspension PostA 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 Crank Length (mm) 165 Pedal Spindle 9 16" Spindle Interface Type ISIS