SPECIFICATIONS

Brand Name: ZRACE

Choice: yes

Components: Freewheel

Flywheel Adjustable Gear Number: 12-Speed

Freewheel Speed: 12

Gear Teeth: 28-44

High-concerned chemical: none

Material: Carbon Steel

Model Number: XDR

Origin: Mainland China

Sensitivity: /

Type: Road Bike Freewheel

is_customized: No

ZRACE XDR Cassette is manufactured by CNC processing of forged Cr-Mo steel ingots. Compared with the traditional single-piece riveted Cassette, the rigidity is increased by 65% and the stability is increased by 80%.

Each tooth of Cassette has been carefully designed to enhance chain guide efficiency and increase gear shifting speed by more than 20%.

Brand: ZRACE

Model: ZR-XDR

Speed: 12s

Material: Cr-Mo steel + 7075 aluminum alloy

Compatibility: only compatible with XDR freehub

Applicable bicycles: Road and Gravel

ROAD Alpha EX Ultra-Light Series

Built for the Pros SRAM XDR

For Pro Racing, High-End Custom Gravel, and 1x Drivetrains

Chainring Options

The Go-To Solution for Modern 2x Road Systems.

Compatible with Both 1x and 2x. Maximum Flexibility.

1x Drivetrain for Gravel

12S
10-28T 10-11-12-13-14-15-16-17-19-22-24-28T 208g

10-33T 10-11-12-13-14-15-17-19-21-24-28-33T 234g

10-36T 10-11-12-13-15-17-19-21-24-28-32-36T 269g

10-44T 10-11-13-15-17-19-21-24-28-32-38-44T 333g

（All data above is for reference only. Actual weight may vary slightly due to production batches.）

SRAM XDR Freehub Design

One-Piece Forged Chromoly Steel, Fully CNC-Machined