Promax CK-1 Carbon Crank Set

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. 

 

• 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

 

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

BB Included – No