5DEV 8 Bolt Spider Shimano Dura Ace Chainrings

5DEV 8 Bolt Spider for Shimano Dura-Ace Chainrings allows riders to pair 5DEV’s SRAM 8-bolt cranksets with a Shimano Dura-Ace 2x drivetrain. Precision CNC-machined in San Diego, California, this spider bridges two high-end standards cleanly and securely, making it possible to run Dura-Ace chainrings without compromising fit or alignment.

The spider is engineered specifically around Shimano’s 4-bolt 110 BCD Dura-Ace 2x chainring pattern and mates directly to SRAM 8-bolt crank interfaces. This focused design ensures proper chainline, stiffness, and shifting performance when used exactly as intended.

Please note that this spider is cut exclusively for Dura-Ace 2x chainrings and is not compatible with Ultegra or other Shimano road chainring standards. Riders planning alternative applications should confirm fitment before installation.

5DEV 8 Bolt Spider for Shimano Dura-Ace Specs at a Glance

• Crank Interface: SRAM 8-bolt
• Chainring Interface: Shimano 4-bolt, 110 BCD
• Chainring Compatibility: Shimano Dura-Ace 2x only
• Ultegra Compatibility: Not compatible
• Weight: 73 g
• Manufacturing: CNC-machined in San Diego, California, USA

Design Benefits

1. Cross-System Compatibility: Enables use of Dura-Ace 2x chainrings on 5DEV 8-bolt cranksets.
2. Precise Fit: Machined specifically for Shimano Dura-Ace geometry.
3. Lightweight Construction: Minimal weight without sacrificing stiffness.
4. Clean Integration: Maintains proper alignment and drivetrain performance.

Final Take

The 5DEV 8 Bolt Spider for Shimano Dura-Ace Chainrings is a highly specific solution for riders building a premium road drivetrain across platforms. When used as intended, it delivers precise fitment and seamless integration between 5DEV cranks and Dura-Ace 2x systems.