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

ZRACE BCD104 Positive and Negative Tooth Single Disc (32T–38T)

Basic Parameters

Brand: ZRACE

Material: 7075 high-strength aluminum alloy (AL7075)

Manufacturing process: CNC precision integrated cutting

Tooth structure: Positive and negative tooth design, enhancing chain meshing and reducing the risk of chain falling off

Hole spacing specification: 104mm (BCD104 symmetrical)

Number of teeth specifications: 32T / 34T / 36T / 38T

Surface properties: High hardness treatment (Vickers hardness HV150+)

Compatibility Notes

Applicable speed range: 9-speed / 10-speed / 11-speed / 12-speed

Compatible crank type: 104BCD symmetrical four-hole crank

Adaptation tip: compatible with mainstream 104BCD mountain bike cranks on the market

Weight reference (±3%)

32T: about 38g

34T: approximately 47g

36T: approximately 58g

38T: approximately 73g

Product Features

Using 7075 aluminum alloy, it boasts high strength and lightweight, making it ideal for high-intensity cycling

CNC precision machining ensures precise tooth profile and smooth, stable transmission

The positive and negative tooth structure effectively locks the chain, enhancing stability on off-road and bumpy road conditions

Kind Reminder

This product is a dental disc plate, excluding crank, screws, and other accessories

Confirm specifications: Please confirm that the crank is of 104BCD symmetrical specifications before making a purchase

Suggestion: Use it in conjunction with a single disc system to achieve the best anti-drop chain effect