4-arm chainring bolts

Secure your single 4-arm chainring with precision and durability.

You need reliable components that keep your ride smooth and your setup tight. These chainring bolts are engineered to fit single 4-arm chainrings, giving you a secure connection that won’t let you down on the road or trail. Crafted from anodized steel, they resist wear and corrosion, ensuring long-lasting performance. The M8.5 x 0.75 thread and precise lengths provide a perfect fit, while the 4 mm Allen key interface on both screw and nut makes installation and maintenance straightforward. When you want your drivetrain to stay solid and responsive, these bolts deliver exactly what you need.

Key Features

Designed specifically for single 4-arm chainrings, these bolts combine precision threading with durable anodized steel construction to withstand the demands of your ride. The matching 4 mm Allen key heads on both screw and nut allow for easy tightening and removal, giving you control and confidence during setup or repairs. Their compact thread and bus lengths ensure a snug fit without excess bulk, maintaining the integrity of your drivetrain while minimizing weight and interference.

Technical Specifications

• Compatibility: Single 4-arm chainrings
• Thread size: M8.5 x 0.75
• Thread length: 4.5 mm
• Bus length: 4.7 mm
• Screw head type: 4 mm Allen key
• Nut head type: 4 mm Allen key
• Material: Anodized steel

Frequently Asked Questions