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The DMR Blade chainring is designed for adult cyclists seeking enhanced chain retention and a lightweight upgrade for their mountain bike drivetrain. Its key benefit is superior chain security, minimizing dropped chains even on rough terrain, while its caveat is a specific crank interface requirement. This chainring features a Wide/Narrow tooth profile, 4mm thick 7075-T6 aluminum construction for stiffness and weight savings, and compatibility with 10, 11, and 12-speed systems, eliminating the need for a separate chain device when paired with a clutch derailleur. It offers a 3mm offset for Boost spacing.
| Age Group | adult |
|---|---|
| Colour | Black |
| Gender | Unisex |
| Model Part Number | DMR-CW-BLADE-B-12-32T |
| Brand | DMR |
Boost is a standard for mountain bike hub and frame spacing, typically 148mm wide at the rear. The DMR Blade chainring's 3mm offset is designed to align correctly with this standard.
When used with a clutch-equipped rear derailleur, this chainring's Wide/Narrow tooth design usually eliminates the need for a separate chain guide, simplifying your setup.
It is compatible with any cranks that use the SRAM 3-bolt Direct Mount (DM) interface.
While primarily designed for 10, 11, and 12-speed systems, it may function with older systems, but optimal performance and chain retention are best achieved with the intended speed count.
Boost spacing is typically found on modern mountain bikes and refers to a 148mm wide rear hub and a corresponding frame dropout width. Measure your rear hub or frame spacing to confirm.
7075-T6 is a high-strength aluminum alloy known for its excellent stiffness-to-weight ratio, making it ideal for performance bicycle components where durability and low weight are crucial.
Ensure a clutch rear derailleur is engaged and functioning correctly. Verify the chainring is installed with the correct orientation and that the chain is not excessively worn.
Confirm the chainring is installed with the 3mm offset facing the correct direction for Boost (148mm) spacing. Check that your crankset is compatible with the SRAM 3-bolt DM interface.
Tighten the SRAM 3-bolt DM interface bolts to the manufacturer's recommended torque specification using the correct tool. Do not overtighten.
Check for proper chain lubrication and alignment. Ensure the chainring is free of debris and that no components are bent or damaged.
Compatibility: Ensure your crankset features the SRAM 3-bolt Direct Mount (DM) interface. This chainring has a 3mm offset, making it suitable for Boost 148mm frame spacing. It is compatible with 10, 11, and 12-speed chains and drivetrains.
Setup:
Care: Clean the chainring regularly with a degreaser and water. Inspect for any signs of wear or damage, particularly on the tooth profiles. Ensure bolts remain tight according to manufacturer specifications.
