Deemount 1X Chain Guide Anti Drop Aluminum Alloy Bracket

Introducing the Deemount 1X Chain Guide Anti Drop Aluminum Alloy Bracket (Model CS-004) — a purpose-built solution for MTB riders who demand reliable chain retention on a 1X drivetrain. Crafted from 7075 aluminum and CNC machined for a precise fit, this ultralight bracket keeps your chain in place even over rough terrain. It features liners to adapt the diameter range, a nylon chain holder for smooth operation, and a sturdy mount that attaches securely to your bike frame. Compatible with frames sized 27.2 to 34.9 mm, it adds minimal weight (about 55 g) to your setup while delivering maximum confidence on climbs and descents. Origin: Mainland China.

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Benefits & Tips

• Prevents chain drops on rugged trails by guiding the chain back onto the chainring, ensuring smooth and predictable shifts.
• Ultra-light CNC machined bracket with adjustable liners for a secure fit across a wide range of frames.
• Versatile fit for MTB frames with 27.2–34.9 mm diameters, providing reliable performance on XC, trail, and enduro rides.

Product specifications

• Material: 7075 aluminum body, nylon chain holder
• Applicable size: Dia. 27.2-34.9 mm frame
• Net Weight: Approx. 55g
• Size: Please refer to graphics below
• Origin: Mainland China

Package includes:

• As Per Order Option

Warnings/Reminders

• Ensure the frame diameter is within 27.2–34.9 mm before installation.
• Align the bracket correctly with the drivetrain and tighten hardware to secure the setup.
• Periodically inspect for wear, alignment, or looseness after rides on rough terrain.