This precision drivetrain replacement is specified for LOSI PROMOTO-MX motorcycles and is sold as MX6832S. The kit pairs a CNC-friendly medium carbon steel 32T hub sprocket with a robust 68 roller chain in manganese steel, engineered for durability and serviceability in 1/4 scale dirt bike RTR final drives.
The components match the standard spur-and-chain arrangement used on PROMOTO-MX machines. Install the hub sprocket to the hub register and route the 68 chain across the sprocket and counter gear while checking radial and axial alignment. Adjust chain tension to manufacturer guidance and confirm consistent tooth engagement; use correct RC-grade tools and secure retainers for installation integrity.
Service and inspection: monitor chain elongation and tooth profile wear after initial running, lubricate sparingly with a suitable chain lubricant, and verify fastener torque as part of routine checks. This kit is offered as an engineered replacement and upgrade option, focused on fitment and longevity rather than marketing claims.
LOS262003,LOS262000
Use the GPM MX6832S kit to replace worn sprockets or to fine-tune final drive ratio on LOSI PROMOTO-MX models, confirming fitment with the compatibility list before installation.