Racework

GRS-RK2 Gravel Crankset 170 mm

Price
$219.99

The short version

Details & specs

Alternating teeth support chain retention, and the crankset has a matte black finish.

Brand
Racework

size: 40T

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Return Policy

Eligible return or exchange requests must be submitted within 45 days of the order date. Items must be new and unused with original packaging, tags, and accessories. General change-of-mind returns are not accepted. Customers cover return shipping for size exchanges; Alpine Extreme covers approved returns caused by an incorrect, damaged, or defective item. See the full Return & Refund Policy for exclusions and refund timing.

Shipping

Free standard shipping is available to most addresses worldwide. Availability, delivery estimates, and any expedited charges depend on the destination and order. International customers are responsible for applicable duties, tariffs, or customs fees.

Racework GRS-RK2 gravel crankset 170 mm

GRS-RK2 Gravel Crankset 170 mm

size: 40T

Price
$219.99

GRS-RK2 Gravel Crankset 170 mm

Racework GRS-RK2 gravel crankset 170 mm

In the field

A CNC-machined hollow-arm crankset with 6061 aluminum arms, a 7075 aluminum spindle, and 40T to 46T single-chainring options.

Drivetrain setup

Choose 40T, 42T, 44T, or 46T chainrings for 10- to 13-speed chains.

Fit and hardware

The 24 mm axle platform includes a BB51 bottom bracket for 68–73 mm shells.

Dimensions and weight

Q factor is 148 mm, K factor is 91.5 mm, and the 40T setup weighs 598 g.

Materials & construction

Crank arms & spindle
6061 aluminum alloy crank arms; 7075 aluminum alloy spindle

Drivetrain

Chainring options
40T, 42T, 44T, or 46T
Chain compatibility
10 to 13 speed chains

Fit & dimensions

Bottom bracket
BB51 bottom bracket; 68 to 73 mm shells
Q & K factor
Q factor 148 mm; K factor 91.5 mm

Weight

Weight
598 g with the 40T chainring

Materials & construction

CNC-machined hollow arms
CNC-machined hollow-arm design

Drivetrain

Tooth profile
Alternating tooth profile

Compatibility

Axle platform
24 mm

Finish

Finish
Matte black

FAQ

How can I reach Alpine Extreme if I have questions?

Email [email protected] or use our contact form.

Do you offer free shipping?

Free standard shipping is available to most addresses worldwide. Availability, delivery estimates, and any expedited charges depend on the destination and order. International duties, tariffs, and customs fees remain the customer’s responsibility. See our Shipping Policy for details.

What's the return policy at Alpine Extreme?

Eligible return or exchange requests must be submitted within 45 days of the order date. Items must be new and unused with original packaging, tags, and accessories. General change-of-mind returns are not accepted. Return-shipping responsibility depends on the reason for the return. See the full Return & Refund Policy for exclusions and refund timing.

How long will it take for my order to arrive?

Orders are typically processed within 2–5 business days. Most standard shipments arrive within 7–14 business days after shipping, depending on destination and carrier conditions. Delivery estimates are not guaranteed.

Can I track my order?

Yes. Tracking details are emailed after shipment. You can also check order status with your order information through our order-tracking page.

What if there's an issue with my order?

Email [email protected] or submit the form on our support page. Report delivery issues within 60 days of the order date so carrier information is still available.