The Damco 27.5" Rear Wheel, Freewheel Nut Axle, Alloy Double Wall is a sturdy, budget-conscious rear replacement wheel designed for entry-level 27.5-inch (650B) mountain bikes and heavy-duty urban commuter setups. Built with a solid threaded axle and a spin-on freewheel interface, this wheel provides a reliable and theft-resistant option for repairing bikes without shifting to modern, expensive cassette hubs.

Key Technical Specifications

• Rim Engineering:
  • 27.5-inch diameter (ISO 584 ETRTO) double-wall aluminum configuration.
  • The inner webbed wall significantly decreases the risk of pinch flats and tacoed rims compared to single-wall designs.
• Hub Interface:
  • Threaded spin-on freewheel hub, designed to accept multi-speed 5-speed, 6-speed, or 7-speed thread-on freewheel gear blocks.
• Axle Configuration:
  • Solid threaded male axle with a standard 135mm Over-Locknut Dimension (OLD).
  • Securely bolted into the frame's rear dropouts using standard 15mm hex axle track nuts.
• Brake Surface:
  • Features CNC-machined alloy sidewalls, optimized for standard V-brakes or linear-pull rim calipers.
• Wheel Build Strength:
  • Structured with 36 spokes laced in a traditional 3-cross pattern to evenly distribute drive-chain torque.
• Valve Structure:
  • Pre-drilled for high-volume, standard Schrader valves.