with a 24mm spindle means sprockets can be mounted directly without the need of adaptors

Introducing the new anodized bottom brackets from Wheels Manufacturing

Built from Hi-Ten steel throughtout the frame

It's spec'd really well with fully sealed bearings throughout

FRONT RIM: 6061 Alloy - Single Wall 36H

Radio Race Helium Pro Dropout Hub - Axle Adapter Set with Chain Tensioner Bolt (For Helium Pro and Quartz Frames) supplier_54522424131910 with a 24mm spindle meansThe Radio Race Helium Pro Dropout Hub Axle Adapter has been upgraded this season with a cold forged construction giving it extra strength and rigidity. It's designed to fit Radio's Helium Pro and Quartz frames.