A Promax CK-1 Carbon Crank Set with a black handle and a white handle, featuring carbon fibre construction.

A black Promax CK-1 Carbon Crank Set with the word promax and carbon fibre on it.

A black handle bar with a Promax CK-1 Carbon Crank Set attached to it.

Description

The CK-1 crank from Promax is a rare offering in the BMX world being constructed from carbon fibre. A few companies have tried before, but haven't quite cracked the formula. Promax has the experience and the know-how to make a BMX race set of carbon cranks work at the top level.

Manufactured with a 30mm spindle proves that this BMX company knows what they are doing when it comes to maximising strength and stiffness in this vital component.

These cranks offer direct-mount chainring compatibility for additional weight savings, but honestly, not many BMX racers run this set up. Our tip is to grab the 4-bolt 104 BCD chainring adapter, available separately. Then any of your existing 4-bolt chainrings will bolt straight up to these carbon beauties.

Features:

Premium carbon crank arms are lightweight and extremely strong
30mm chromoly spindle provides increased stiffness and efficient power transfer
Compatible with Promax 4-Bolt 104BCD Spider/Adapter for CK-1 cranks (sold separately)
Pedal washers included and required

Specifications:

Pedal Spindle - 9/16"

Crank Length (mm) - 170 / 175

Spindle Interface Type - RaceFace/Easton CINCH

Crankset Style - 2-Piece

Drivetrain Speeds - Single Speed 3/32"

Chainring BC - 104

Torx Bolts Included - Yes (3X)

BB Included - No