Description
High-RPM applications demand a drive belt engineered for sustained performance, and the Dayco 800 INDY XC 129 delivers exactly that. If you’re running a forced-induction or naturally aspirated engine at the edge of its limits, belt slippage and thermal breakdown will cost you power and consistency—this belt’s advanced polymer construction and precision cog geometry eliminate both. Built for racers and serious enthusiasts who refuse compromises, the XTX5054 maintains grip and responsiveness at over 12,000 RPM while running cooler under load.
- High-temperature polymer construction
- Deeper top cogs, rounded bottom cogs
- Enhanced throttle response
- Improved mid-range acceleration
- Rated 12,000+ RPM
- Operates cooler
- Reduced thermal wear
- Better engine braking control
- Manufacturer part number: XTX5054
