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Samox E3 BO Bosch GEN 2/Yamaha ISIS 15mm Offset Crank Arm Set
Sale price
$30.00
Regular price
$30.00
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SKU: EC38-F13-ISIS-165 Option: Black / 165mm
Pickup available at RA Cycles Walnut Creek
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Stock Availability by Location
RA Cycles Brooklyn In stockLow stock (1 left)Low stock (2 left)— Out of stock— Not immediately available
105 5th Ave, Brooklyn, NY 11217718-636-5242
* Available for in-store pickup in 2-4 hours
* Available for in-store pickup in 2-4 hours
* Available for in-store pickup in 2-4 hours
RA Cycles Walnut Creek In stockLow stock (1 left)Low stock (2 left)— Out of stock— Not immediately available
2099 Mt Diablo Blvd, Walnut Creek, CA 94596925-433-7099
* Available for in-store pickup in 2-4 hours
* Available for in-store pickup in 2-4 hours
* Available for in-store pickup in 2-4 hours
Distribution Center - East In stockLow stock (1 left)Low stock (2 left)— Out of stock— Not immediately available
Distribution Center - Central In stockLow stock (1 left)Low stock (2 left)— Out of stock— Not immediately available
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Samox E3 BO Bosch GEN 2/Yamaha ISIS 15mm Offset Crank Arm Set
$30.00
Samox E3 BO Bosch GEN 2/Yamaha ISIS 15mm Offset Crank Arm Set Info
The Samox E3 BO Bosch GEN 2/Yamaha ISIS 15mm Offset Crank Arm Set is a purpose-built replacement designed for e-bike drivetrains running Bosch GEN 2 or Yamaha ISIS mid-drive motors. The 15mm offset positions the chainring further outboard to improve chainline alignment — a critical detail on assisted bikes where drivetrain stress runs significantly higher than on conventional builds. Available in 165mm length, these crank arms suit riders who need a shorter stroke without sacrificing compatibility.
Samox has been producing OEM crank components for major manufacturers for decades, and that manufacturing background shows in the precision of the ISIS interface and the consistency of the finish. The 15mm offset is the key specification here — it's what separates this set from a standard replacement arm and makes it the correct choice for specific Bosch and Yamaha motor configurations where chainline would otherwise be compromised.
Samox E3 BO Bosch GEN 2/Yamaha ISIS Specs at a Glance
- Compatibility: Bosch GEN 2 and Yamaha ISIS mid-drive motors
- Chainring offset: 15mm outboard
- Crank arm length: 165mm
- Color: Black
- Interface: ISIS spline
PRICE MATCH GUARANTEE
We will price match against advertised or quoted prices from other authorized dealers of the product!