SPECIFICATIONS

Brand Name: ZRACE

Category: Chain Wheel

Choice: yes

High-concerned chemical: none

Material: Aluminum alloy

Model Number: BCD104

Origin: Mainland China

Type: Bicycle Chainwheel

Use: Mountain Bikes

Brand: ZRACE

Material: 7075 high-strength aluminum alloy (AL7075)

Manufacturing Process: Precision CNC machined from a single piece of billet

Tooth Profile: Narrow-wide tooth design for improved chain engagement and reduced chain drop risk

Bolt Circle Diameter: 104mm (BCD104 symmetric)

Available Sizes: 32T / 34T / 36T / 38T

Surface Treatment: High-hardness finish (Vickers hardness HV150+)

Compatibility

Speed Compatibility: 9-speed / 10-speed / 11-speed / 12-speed

Crank Compatibility: Fits 104mm BCD symmetric 4-bolt cranks

Compatibility Note: Compatible with most mainstream 104BCD MTB cranks

Please Note:

This listing is for the chainring only — crank arms, bolts, and other hardware are sold separately

Double-check that your crank is a 104BCD symmetric 4-bolt design before purchasing

For best results, pair with a 1x drivetrain setup to maximize chain retention

ZRACE BCD104 4-bolt Round Chainring 32-38T

MULTIPLE ANGLE DISPLAY

CNC Hollow Disc

SIZE: 32T 34T 36T 38T

Weight:     38g  47g  58g  73g

Positive and negative toothdesign, preventing chain drop

7075 Aluminum Alloy CNC