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CØR-IS Crank Arms

CØR-IS Crank Arms
Silver CNC-machined crank arms with geometric cutouts, shown with mounting hardware on a black background for product display.
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CØR-IS Crank Arms

Original price was: CAD 799.99.Current price is: CAD 599.99.

CNC-machined in Canada and tested to ISO 4210 standards. The CØR-IS is built for strength and durability, with a striking look for rides with a Bosch, Avinox, and Specialized motors. Available in 155 mm, 160 mm, and 165 mm lengths.

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CNC-machined in Canada and tested to ISO 4210 standards. The CØR-IS is built for strength and durability, with a striking look for rides with a Bosch, Avinox, and Specialized motors. Available in 155 mm, 160 mm, and 165 mm lengths.

Shorter crank arms are designed to reduce pedal strikes during technical climbs and descents

  • Shorter length results in an inherently lighter and stiffer design than longer crank arms

Designed and manufactured in Canada

  • Tested and compliant to ISO 4210-8 (405 pounds of force applied 50,000 times)
  • Iterative topology study combined with finite element analysis used to create a unique, lightweight, safe and strong design

Easy installation with self-extracting hardware to facilitate quick removal of the crank arm

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Specifications
  •  Motor Compatibility: Avinox M1, Bosch  CX (Gen 4), Bosch CX (Gen 5), Specialized 3.1.
  •  Spindle: ISIS Drive Spindle
  •  Weights with Hardware: 480 g, 492 g, 503 g ( From 155 mm – 165 mm lengths)
  •  Materials: Machined 7075 Grade T651 Aluminum
  •  Hardware: Crank Bolt, Extractor, Washers
  •  Q-Factor: 179 mm
 
Installation Specifications
  •  M19 x 1, 8 mm hex key, 40 N∙m installation torque
  •  M33 x 1 LH, FR-5.2 cassette tool, 10 N∙m installation torque
  •  M15 x 1, 8 mm hex key, 50 N∙m installation torque
  •  M22 x 1, 10 mm hex key, 10 N∙m installation torque
  •  Material: Crank bolt and extractor washers in 316 stainless steel

Basic Returns

Should an item purchased through Arkoza fail to meet your expectations, we will gladly accept its return within 30 days of original purchase date. See instructions here.


Shipping

Available shipping options will be displayed during the checkout process. Canada and US orders are typically processed and shipped within three business days. Any orders placed over a weekend, or holiday will be processed the next business day.


Warrantee

Arkoza warrants products to be free from defects in materials or workmanship for five years after original purchase date to the original owner. Some limitations apply. For more information on warranty policy and instructions for completing a warranty claim, check out our full warranty policy found online at arkoza.shop/warrantee

Click for more on our Warrantee and Returns Policies

Product Specification

Craftsmanship and Precision Engineering
Our Cor-IS Crank Arms are manufactured in Canada from high-quality 7075 Grade T651 aluminum and are subjected to rigorous testing to meet ISO 4210 standards.

CØR-IS Crank Arms

The CØR-IS IS Spline Cranks deliver unmatched durability, bold style, and uncompromising strength. Crafted from high-grade 7075-T651 aluminum and precision-machined to exacting standards, they undergo rigorous fatigue testing to meet and exceed ISO 4210 requirements.
General Specifications

  • Motor Compatibility: Bosch Performance Line CX (Gen 4) Motor

  • Spindle: Cor-IS Drive Spindle

  • Weights with Hardware: 472 g, 486 g, and 501 g (varying by length)

  • Hardware: Crank Bolt, Extractor, Washers

  • Material: Machined 7075 Grade T651 Aluminum

  • Q-Factor: 180 mm
Installation Specifications

  • M19 x 1, 8 mm hex key, 40 N∙m installation torque

  • M33 x 1 LH, FR-5.2 cassette tool, 10 N∙m installation torque

  • M15 x 1, 8 mm hex key, 50 N∙m installation torque

  • M22 x 1, 10 mm hex key, 10 N∙m installation torque

  • Material: Machined 7075 Grade T651 Aluminum

  • Crank arm, crank bolt, and extractor

  • Washers are 316 stainless steel

  • Complete set with hardware by length

Secure Your CØR-IS Crank Arms Today

Limited Release – Only 120 Units Available

Unlock your ride’s full potential with the first-release CØR-IS Crank Arms — engineered for power, precision, and personalized style. Join the waitlist now to secure 25% off — no payment required until orders open.

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