The Eagle 90 Transmission eMTB crank is a sturdy, clean-looking crank arm for pedal-assist bikes. It is forged from aluminium for strength without excess weight, and this Bosch version comes with the crank cap for a neat, integrated look on Bosch-powered bikes.

Highlights

  • Forged aluminium crank arms, black
  • 160mm length
  • ISIS spindle interface
  • M15 self-extracting crank bolt
  • Bosch crank cap included for a neat motor fit
  • Listed for Bosch BDU31, BDU37 and BDU38

Clean integration

SRAM’s GapCap closes the gap between crank and motor on select drive units for an integrated look. The cap is removable when fitting the arms to other ISIS-spindle motor systems.

Compatibility and fit

SRAM lists this part for Bosch BDU31 (SX), BDU37 (CX Gen4) and BDU38 (CX Gen5) drive units, with a 39mm crankset offset. Chainring and bottom bracket are not included. Fitting needs the correct tools and torque specs, or book it in with a workshop.

This SRAM component is covered by SRAM’s warranty against defects in materials and workmanship; terms are set by SRAM. Wear and service items (chains, cassettes, brake pads, rotors, tape and seals) are normal maintenance parts.

Tune Cycles can supply, fit and set up SRAM components and lodge any warranty assessment on your behalf — book at tunecycles.com.au/book.

  • SRAM Eagle 90 Transmission eMTB crank assembly (FC-90-PA-A1)
  • 160mm forged aluminium arms, black
  • ISIS interface
  • M15 self-extracting bolt
  • Bosch crank cap included
  • 39mm crankset offset
  • Chainring and BB not included
BrandSRAM
Model/seriesEagle 90 Transmission eMTB (FC-90-PA-A1)
SRAM part number00.6118.702.003
Crank arm length160mm
Crank arm materialAluminium
ColourBlack
Spindle interfaceISIS
Crankset offset39mm
Drive unitsBosch BDU31 (SX), BDU37 (CX Gen4), BDU38 (CX Gen5)
Gap capYes (Bosch)
Crank boltM15 self-extracting
Not includedChainring, bottom bracket
SKU PSI-SR006118702003
Brand SRAM

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