5DEV 8-Bolt Direct Mount T-Type Aluminium Chainring

The 5DEV 8-Bolt Direct Mount T-Type Aluminium Chainring is a precision CNC-machined drivetrain upgrade built for SRAM & Shimano Transmission systems, with full compatibility across Shimano 12 speed and SRAM Eagle chains. Machined in San Diego, California, it combines exact 8-bolt fitment with a 3mm offset and 52–55mm chainline for accurate alignment, strong chain retention, and consistent power transfer under load.

Key Features and Benefits:

• CNC’d in San Diego, California: Each chainring is machined from aluminium using high-tolerance CNC processes. This ensures accurate tooth profiles and mounting interfaces, which improve chain engagement and reduce premature wear. The result is smoother power transfer and long service life under high torque.
• SRAM 8-Bolt direct mount system: The dedicated 8-bolt interface fits SRAM Transmission cranks without adaptors. This creates a rigid connection between crank and chainring, reducing flex under load. A stiffer interface supports more efficient pedalling and consistent shifting performance.
• 3mm offset with 52–55mm chainline: The optimised offset positions the chainring correctly within modern drivetrain standards. Correct chainline reduces cross-chaining stress and improves drivetrain alignment. This leads to quieter running and lower drivetrain wear over time.
• Compatible with SRAM Transmission, Shimano 12 Speed and SRAM Eagle chains: The tooth profile is designed to mesh with current 12-speed chain standards. This wide compatibility allows seamless integration into mixed or upgraded builds. You gain reliable chain retention and smooth engagement across drivetrain platforms.

Reliable power transfer and drivetrain stability are critical in high-load riding. The rigid 8-bolt interface and precise chainline control unwanted movement at the crank. Accurate CNC tooth shaping supports consistent chain engagement across 12-speed systems. Together, these features help maintain efficient pedalling and dependable shifting when torque demands are high.

Upgrade your drivetrain with a chainring engineered for modern 12-speed systems and built with tight machining standards. Choose a direct mount solution that delivers precise fit, strong retention, and long-term durability.