The FSA CK-752 crankset embodies FSA's technical response to the extreme demands of e-bikes with Shimano EP8, EP801 and E8000 motors. Forged from AL6061/T6 aluminum, they combine light weight, exceptional rigidity and resistance to the high torque inherent in electric drivetrains. With their 170 mm length, these crank arms offer an ideal compromise between pedaling power and optimized ground clearance for aggressive off-road riding.

Technical architecture and motor compatibility

The CK-752 was specifically designed to integrate with Shimano STEPS EP8, EP801 and E8000 systems thanks to its SML (Shimano Hollowtech II) spindle interface with 24 mm diameter. The Q-Factor of 173 mm and internal clearance of 145 mm guarantee perfect compatibility with Shimano motor housings, while avoiding any contact with the chainstays. The set is supplied complete with two ML598A spindle bolts, ensuring safe installation in compliance with manufacturer specifications.

Construction and finish

• Forged AL6061/T6 material: Aerospace-grade aluminum alloy, hot-forged for maximum structural resistance to the cyclic stresses of electric motors (up to 85 Nm of torque on EP8).
• Sandblasted black anodized finish: Protective surface treatment against oxidation and scratches, enhanced with contrasting laser graphics for an elegant visual signature.
• Standard 9/16" pedal thread: Compatible with all MTB and road pedals on the market.

On-trail performance

• Optimal stiffness: The forged section and arm architecture ensure direct power transmission, without parasitic flex, even under maximum motor assistance.
• Controlled weight: At only 469 g per pair, the CK-752 ranks among the lightest E-Bike cranks in its category, contributing to bike agility.
• Improved ground clearance: The 170 mm length limits the risk of pedal/obstacle contact on technical singletrack, while preserving pedaling efficiency on varied terrain.

Available variants

The FSA CK-752 model is offered in four lengths to suit each rider's morphology and riding style:

• 160 mm variant: Ideal for extreme technical riding and compact builds (EAN not provided / Manufacturer ref. not specified)
• 165 mm variant: Versatile trail/enduro compromise (EAN 4710243895665 / Ref. 324-0068002050 / SKU 421579641)
• 170 mm variant: Standard length balancing power/maneuverability (EAN 4710243895672 / Ref. 324-0068003050 / SKU 421579642)
• 175 mm variant: Optimized for taller riders and rolling terrain (EAN not provided / Ref. 324-0068005050)

All variants share the same technical characteristics (material, interface, Q-Factor, weight ±a few grams) and are compatible with the same Shimano STEPS motors.

Recommended use

These cranks are intended for E-MTB, All-Mountain, Trail and Enduro riding. They constitute a premium replacement part or an upgrade option for any e-bike equipped with a Shimano EP8, EP801 or E8000 motor, providing weight savings and improved aesthetics compared to original equipment. Note: the CK-752 is a crank pair only, without chainring or bottom bracket — these components must be ordered separately according to existing configuration.