HUP 2-Piece Cranks: hollow axle (3-bolt DM) short cranks

Lightweight hollow axle cranks to fit any frame! These HUP 2-piece cranks are probably the most important component you will fit to your bike.

Get it wrong and you will lose pedal power and risk injury from crank arms that are too long. Get it right, and you will spend many happy hours in the saddle and maximise your leg power!

Available in a variety of popular lengths to fit junior/youth and adult riders from age 5+ Compatible with 24mm Shimano type external bottom brackets, they are cold-forged from 6061-T6 aluminium for strength, low weight and durability.

These cranks are perfect for Road Racing, Cyclocross, Triathlon, BMX or MTB with the appropriate bottom brackets and single chainring...

Sizing Guide: 

125mm: riders approx 115cm to 130cm tall
135mm: riders approx 125cm to 140cm tall
145mm: riders approx 135cm to 150cm tall
155mm: riders approx 145cm to 160cm tall
165mm: riders approx 155cm to 175cm tall

• HUP 2-piece hollow axle cranks
• Chainring fitment: 3-bolt SRAM direct mount
• Installation: Single chainring
• Axle type: 24mm
• Aluminum 6061-T6
• Bottom Bracket: 24mm Shimano
• Arm Lengths:  125mm, 135mm, 145mm, 155mm & 165mm
• Chainline: 48mm (6mm offset chainring), 51mm (3mm offset chainring)
• Q-Factor: 152mm
• Weight: from 495g (arms and axle)
• Colour: Black
• Does not include BB or chainring - available separately

Top Tips: as with all our kids cranks, we always add helicopter tape to the face of the crank arms to protect from kids feet rubbing (especially without cleats) when the cleat position sets the shoes very close to the cranks. Fitting to the HUP evo (68mm shell), use 1x 2.5mm spacer on each BB cup and a 6mm offset chainring. Fitting to the HUP xc 13"-19" (73mm shell) use the 2mm spacer on the DS cup and a 3mm offset chainring. Fitting to the HUP xc20/24 (73mm shell) use the 1mm spacer on the DS cup and a 6mm offset chainring.