Description
Small-bore motocross bikes still put real stress through the drivetrain when they are being ridden hard, and a chain that is either too heavy or too weak will cost you either acceleration or reliability. ProTaper built the 420MX chain in 134-link length to split that difference for 50cc to 125cc machines, using the same Gold Series chromoly construction found on its larger 520 chains, just scaled down to the lighter pitch these bikes actually need.
Features and Benefits
- Premium Gold Series construction scaled to 420 pitch for smaller-displacement bikes
- Lightweight, ultra high-strength chromoly build keeps unsprung and rotating weight down
- Rated to 4,980 lbs tensile strength, sized correctly for 50cc to 125cc applications
- Engineered for strong, smooth power transfer under demanding off-road and racing conditions
- 134-link length in 420 pitch, ready to cut to your bike’s exact chain length if needed
This chain is built for the mini and small-bore classes where a heavier 520 chain would be overkill and would only add drag. Run it with the correct master link for your bike and keep tension within factory spec, since 420 pitch chains are less forgiving of slack than the larger pitches. IPD Racing stocks this genuine ProTaper chain, part number 023101, backed by the manufacturer warranty.
