Super-light ISIS crank arms for modern E-MTB drives.
The FSA KFX CK-9011/IS crank arms were specially developed for performance-oriented E-MTBs. Thanks to an innovative hollow construction made from two separately forged and CNC-machined aluminum half-shells, they offer an exceptional combination of low weight and high stiffness.
Equipped with an ISIS interface, the crank arms are compatible with Bosch Gen 4, Yamaha, Fazua as well as other suitable drive systems. The Q-factor varies depending on the motor platform.
Weighing only approx. 350 g per pair (manufacturer's specification), they are a high-quality upgrade option for demanding E-MTB setups.
Highlights:
- KFX Series: light & extremely stiff.
- ISIS Interface: compatible with Bosch Gen 4, Yamaha, Fazua.
- Innovative Hollow Construction: CNC-machined & bonded.
- Only approx. 350 g (pair): Performance-oriented.
- 170 mm Length: sporty & efficient.
Q-Factor / Crank arm inner distance:
- Bosch: 173 mm / 143 mm
- Yamaha: 164 mm / 134 mm
- Polini: 171.5 mm / 141.5 mm
Technical data:
- Manufacturer: FSA
- Model: KFX CK-9011/IS
- Length: 170 mm
- Interface: ISIS
- Compatibility: Bosch Gen 4, Yamaha, Fazua (model-dependent)
- Material: Aluminum
- Color: Black
- Weight: approx. 350 g (pair), 378 g (self-weighed)
Scope of delivery:
- 1x FSA KFX E-Bike Crank Arms ISIS 170 mm | CK-9011 | Bosch Gen4, Yamaha, Fazua
- Incl. crank arm bolts
- Note: Workshop packaging (without outer packaging)
Manufacturer Part No.: 324-0065003050 | EAN: 4710243890547
SKU: Q11D1
FSA KFX E-Bike Crank Arms ISIS 170 mm | CK-9011 | Bosch Gen4, Yamaha, Fazua
Super-light ISIS crank arms for modern E-MTB drives.
The FSA KFX CK-9011/IS crank arms were specially developed for performance-oriented E-MTBs. Thanks to an innovative hollow construction made from two separately forged and CNC-machined aluminum half-shells, they offer an exceptional combination of low weight and high stiffness.
Equipped with an ISIS interface, the crank arms are compatible with Bosch Gen 4, Yamaha, Fazua as well as other suitable drive systems. The Q-factor varies depending on the motor platform.
Weighing only approx. 350 g per pair (manufacturer's specification), they are a high-quality upgrade option for demanding E-MTB setups.
Highlights:
- KFX Series: light & extremely stiff.
- ISIS Interface: compatible with Bosch Gen 4, Yamaha, Fazua.
- Innovative Hollow Construction: CNC-machined & bonded.
- Only approx. 350 g (pair): Performance-oriented.
- 170 mm Length: sporty & efficient.
Q-Factor / Crank arm inner distance:
- Bosch: 173 mm / 143 mm
- Yamaha: 164 mm / 134 mm
- Polini: 171.5 mm / 141.5 mm
Technical data:
- Manufacturer: FSA
- Model: KFX CK-9011/IS
- Length: 170 mm
- Interface: ISIS
- Compatibility: Bosch Gen 4, Yamaha, Fazua (model-dependent)
- Material: Aluminum
- Color: Black
- Weight: approx. 350 g (pair), 378 g (self-weighed)
Scope of delivery:
- 1x FSA KFX E-Bike Crank Arms ISIS 170 mm | CK-9011 | Bosch Gen4, Yamaha, Fazua
- Incl. crank arm bolts
- Note: Workshop packaging (without outer packaging)
Manufacturer Part No.: 324-0065003050 | EAN: 4710243890547
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F.S.A. S.R.L. / Full Speed Ahead develops precision bicycle components, including cranksets, cockpits, headsets, wheels, and drivetrain parts built for efficient performance. The brand stands out for combining Italian cycling heritage with modern engineering for road, gravel, mountain, and e-bike riders.
Via Francesco Petrarca. 4
20123 Milan
Italy E-Mail: info@fullspeedahead.com Telefon: +39 039 688 52 65 Website: http://www.fullspeedahead.com/