Arkoza E-Mountain Bike Cranks

CØR Series cranks are CNC-machined in Canada, tested to ISO 4210 standards, and built for strength, durability, and distinctive style.

Arkoza E-Mountain Bike Cranks

CØR Series cranks are CNC-machined in Canada, tested to ISO 4210 standards, and built for strength, durability, and distinctive style.

Product shot of the black COR-ET crank arms.
CØR-ET Crank Arms
In Stock
Original price was: 564.02 USD.Current price is: 423.01 USD.
Product shot of the silver COR-IS crank arms.
CØR-IS Crank Arms
In Stock
Original price was: 564.02 USD.Current price is: 423.01 USD.
Arkoza CØR Series

Find Your CØR Fit

Choose the crank platform designed for your eMTB motor.

155–165 mm Available crank lengths
Canada Engineered and manufactured
ISO 4210 Tested for safety and durability
CØR Series

CØR-IS

Compatible With
  • Bosch CX (Gen 4 & Gen 5), PX
  • Specialized 3.1
  • Avinox M1, M2 & M2S
  • Aventon A100 & Ultro X
Compatibility Support

Questions about compatibility?

Send us your bike model and motor platform, and our team will help confirm the right CØR crank fit.

Send Us a Message
Engineered Details

Explore the CØR Series Up Close

Hover over each hotspot to inspect the details behind the design. On mobile, tap a point to open the feature.

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Arkoza CØR eMTB crank arm
Self-extracting crank hardware
01 / 04

Self-Extracting Hardware

Easier removal with no special tools required, making service simpler and more rider-friendly.

Quick service · Clean maintenance
Targeted material removal
02 / 04

Targeted Material Removal

Precision-machined cutouts remove unnecessary material while preserving strength where it matters.

Weight savings · Strength retained
Clipped crank threads
03 / 04

Clipped Threads

Thread geometry helps guide installation more cleanly and reduces the likelihood of cross-threading.

Cleaner installation · Better alignment
Pedal strike clearance
04 / 04

Pedal Strike Clearance

The compact profile supports greater clearance and helps reduce pedal strikes on technical terrain.

More clearance · Technical riding

About Arkoza Cranks

01

Performance and Durability.

Whether you’re riding enduro, freeride, or downhill, Arkoza crank arms deliver the strength and reliability you need on the trails.

Cranks have been fatigue-tested to 50,000 cycles at 400 lbs of force to meet ISO 4210 Standards to ensure uncompromising durability.

02

Style Without Compromise.

Using finite element analysis, we purposefully remove only material that adds no support to strength and stability.

Additionally, each set also has an anodized finish helping resist trail rash, and precision-machine lines showcasing the craftsmanship behind your component.

03

Rider-Driven Design.

Less material at the end of the crank gives the pedal more ground clearance, helping reduce pedal strikes, while clipped threads make pedal installation smoother and reduce the risk of cross-threading.

Large self-extracting hardware with a Teflon insert reduces binding and makes crank removal easier for simple maintenance anywhere.

Fatigue-Testing to ISO 4210.
0 Cycles
Invested in development.
0 + Design Hours
Material removal and design.
% Purposeful 0
Options for better clearance.
0 mm Length

Who We Are

Arkoza was founded on an unwavering passion for mountain biking and a commitment to redefine what’s possible in component design. We’re driven by the pursuit of excellence, ensuring each product delivers the perfect balance of durability, performance, and distinctive style.

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