Description
Utilising a dual-stage transmission, the overdrive system enables the rider to achieve maximum pedalling speed, effectively simulating the use of a single 75T chain-ring.
The cranks are made from high-strength Cr-Mo steel with a tensile strength of 1200 N/mm². The 120 mm cranks are designed for improved cornering and optimised for higher cadence pedalling.
The cranks feature interlocking teeth for secure connection, fastened with an M10 fine-thread bolt. The fine threading prevents loosening, eliminating the need for thread lock. Ensure proper tightening to 35 Nm for optimal performance.
Product features
- Chain rings: 30T (crank) – 12T – 30T (on overdrive chain ring) for use with 2025 Q140MD frame kts;
- Bottom bracket: This system fits only 100 mm BB shell width (only option with Q140MD frame);
- Crank Arm Length: 120 mm;
- Material of Crank arms: Cr-Mo steel;
- Colour: Black powder coat;
- Weight (includes BB bearing, cranks and all nuts and bolts): 1400 g.
What is included (17):
• 1 x cranks (L+R)
• 1 x overdrive chain 42L
• 1 x crank chain 52L
• 2 x end plug
• 1 x Shimano BB bearing set
• 1 x overdrive 30T-12T chain wheel
• 1 x M10x30 Allen bolt
• 4 x M10 washer
• 1 x M10 flange nut
• 1 x 30T crank chain wheel
• 4 x M6x12 Allen bolt
• 4 x M6 lock nut
• 1 x M10X1 fine thread Allen bolt
