CK-1 cranks are Promaxs top-of-the-line carbon crank offering. The race-ready carbon design maximizes strength and minimizes weight. The crank arms spin on a beefy 30mm spindle to increase stiffness and power transfer. These cranks offer direct-mount chainring compatibility for additional weight savings, or run them with a 4-bolt 104 BCD chainring adapter, available separately.

• Premium carbon crank arms are lightweight and extremely strong
• 30mm chromoly spindle provides increased stiffness and efficient power transfer
• Designed and optimized for chainrings with SRAM’s 3-Bolt mount style (bolts sold separately. SKU number CK2203 recommended)
• Compatible with Promax 4-Bolt 104BCD Spider/Adapter for CK-1 cranks (sold separately)
• Pedal washers included and required
• Bottom bracket sold separately