Stone Road Bike Crankset 28.99mm DUB 8 Bolts Pins Alu 7050-T7451 155 160 165 170 172.5 175mm Crank for AXS Spiders Powermeter chainring FORCE RED RIVAL 29mm gravel bike STONEDW XPLR 12s 13s

Stone Road Bike Crankset 28.99mm DUB 8 Bolts Pins Alu 7050-T7451 155 160 165 170 172.5 175mm Crank for AXS Spiders Powermeter chainring FORCE RED RIVAL 29mm STONEDW

Engineered for precision, fatigue resistance, and long-term structural reliability.

Brand: STONE / STONEDW

Model: 8-Bolt Direct Mount Road Bike Crankset/ gravel bike

Spindle Diameter: 29mm DUB (28.99mm)

Direct mount interface: 8 bolts direct mount, which compatible to 8 bolts chainring and spider and powermeter from any brand.  XPLR 12s 13s

Crank Parameters compatible to FORCE (FC-FRC-D1)

Crank length: 155mm/160mm/162.5mm/165mm/167.5mm/170mm/172.5mm/175mm

Color: Black, Silver

Crank Arm Material: 7050-T7451 Aluminum Alloy (7050 aluminum alloy offers excellent fatigue resistance. It help this crank pass the fatigue test of 100,000 times)

Other Components Material: 7075-T651 Aluminum Alloy(7075 aluminum alloy provides an excellent strength-to-weight ratio and high overall strength.)

Works with Road Bike, and gravel bike.

Q-factor: 146mm (Chainline 43.5mm), road bike and ordinary gravel bike can install.

DUB wide bike can not install, it need to see below: 

(DUB wide gravel bike need 152mm Q-factor[Chainline 47.5mm], which requires the spindle length 5mm longer than ordinary road bike and gravel bike, send us message to customize 152mm/ 151mm Q-factor if in need)

Weight: 

155 mm / 483.9 g (17.07 oz)
160 mm / 491.5 g (17.34 oz)
162.5 mm / 494.4 g (17.44 oz)
165 mm / 507.5 g (17.90 oz)
167.5 mm / 510.8 g (18.02 oz)
170 mm / 514.5 g (18.15 oz)
172.5 mm / 518.5 g (18.29 oz)
175 mm / 525.5 g (18.53 oz)

In-House CNC Machining & Quality Control

Equipped with Renishaw probing system

Renishaw probing systems provide in-process measurement and automatic compensation, ensuring high precision and repeatable CNC machining.

All machining completed fully in-house

Full control over machining accuracy and consistency

Ensures accurate centering and tight tolerance control

Guarantees consistent quality across production batches

Precision Spindle Engineering

High-strength aluminum alloy spindle

Extremely high roundness and geometric accuracy

Spline interface symmetry tolerance ≤ 0.015 mm

Spindle roundness tolerance ≤ 0.01 mm

Ensures smooth engagement and long-term durability under high torque

Package Content:

Right crank arm x1, Left crank arm x1, Spindle x1, Pedal washers x2, 3mm spacers x1, 8pcs bolts, Grease x1

Advantage:

1.In-house CNC Machining with Renishaw Probing

Ensures precise centering, tight tolerances, and consistent quality.

High-strength Aluminum Alloy spindle, it features extremely high roundness.

Spline interface symmetry tolerance≤0.015 mm

Roundness tolerance≤0.01 mm

2.Multi-configuration Fatigue Testing, Pass fatigue test 100,000 times

Mechanical performance tested across multiple crank configurations. 

3.Long-term Testing & Structural Optimization

Design refined through months of fatigue testing for improved strength and durability.

4.Competition-grade certification passed

45°/ 1800 N / 100,000 times

30°/ 1800 N / 100,000 times

Made from premium 7075 and 7050 aluminum alloys sourced from U.S. suppliers such as Aleris and Aleco,the crank is manufactured with exceptionally high processing standards and precision.

Manufacturing Philosophy

Manufactured from premium 7050 and 7075 aluminum alloys

Aluminum sourced from U.S. suppliers such as Aleris and Aleco

Machined with exceptionally high processing standards

Focused on engineering integrity rather than marketing claims

Designed for riders who value precision, durability, and long-term performance

Buy Related Products
110BCD spider here
110BCD aero 2x speed chainring here 
110BCD hollow 2x speed chainring here
110BCD AXS flattop tooth 2x speed chainring here
Direct mount chainring 1x speed aero style here(AXS flattop tooth and non AXS 9-12s tooth)