LOSI PROMOTO-MX Hub Sprocket and 68 Roller Chain - 32T Medium Carbon Steel MX6832S by GPM  [MX6832S]

Replacement 32T Sprocket and 68 Chain for PROMOTO-MX

This RC drivetrain replacement kit is made for LOSI PROMOTO-MX motorcycles and is supplied under model MX6832S. The package pairs a 32T medium carbon steel hub sprocket with a 68 roller chain manufactured in manganese steel to give a durable, serviceable option for changing final drive ratio or replacing worn drivetrain parts on 1/4 scale dirt bike RTRs.

The parts are intended for the standard spur-and-chain arrangement found on the PROMOTO-MX platform. Fit the hub sprocket in the original hub location and route the 68 chain over the sprocket and counter gear, checking alignment and chain path. Typical setup includes setting correct chain tension and confirming each tooth engages cleanly; use suitable RC tools and retainers to secure the assembly.

Maintenance advice: check for signs of wear after a few runs, keep the chain lightly lubricated with a product made for RC chains, and check fastener torque at regular intervals. This kit is supplied as a like-for-like replacement and tuning option, not a performance enhancement claim.

Use the GPM MX6832S kit when swapping worn sprockets or refining final drive ratio on LOSI PROMOTO-MX machines, and always confirm fit against the listed compatible models before fitting.