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Description
The Twister Throttle Tube from ProTaper is constructed from quality anodized billet aluminum. The sealed radial ball bearing and polymer bushing allow for a consistent and smooth throttle operation while a knurled grip mounting area ensures a vice-like grip bond. The ProTaper Twister Throttle tubes are used by top-level pro teams and riders world wide. Twister Throttle Tubes are compatible with all ProTaper handlebars and Renthal 7/8 in. handlebars with the standard bearing insert.
FEATURES
- Features a sealed ball bearing that virtually eliminates friction and nylon sleeve bearing on the inboard end
- Crud plug stops grip glue form ruining bearing
- All Twister throttle tubes include a free insert for all ProTaper® bars
Technical Specifications
- MFG. Part Number 025073
Vehicle Information
Kawasaki KX450X Dirt Bike (2021-2026)
The Kawasaki KX450X (2021-2026) is a high-performance, dedicated cross-country racing motorcycle. Powered by a consistent 449cc liquid-cooled, four-stroke, DOHC single-cylinder engine, it offers robust power delivery across all model years, typically around 53 HP. Throughout this period, the KX450X has been offered as a single, specialized trim, built upon the KX450 motocross platform with off-road specific modifications. A significant generational update occurred in 2024, carrying over into the 2025 and 2026 models. This overhaul introduced a new engine with revised cylinder head and intake, a lighter aluminum perimeter frame, and a center exhaust for improved performance and handling. Key enhancements also included a Brembo front brake, advanced electronic rider aids like Kawasaki Traction Control (KTRC) and Bluetooth connectivity, plus updated ergonomics. The 2025 model saw a minor air-intake upgrade, while 2026 featured largely cosmetic changes. FAQ:
Q: How do I ensure this product fits my Kawasaki KX450X?
A: To guarantee compatibility, please use the year and edition selector at the top of the page.
Maintenance
| Component | Interval | Details |
| Engine Oil Changes | 10 hours (recreational use) or 5 hours (aggressive/race use) | |
| Oil Filter | With each oil change | |
| Air Filter Service | 15 hours (recreational, except 5 hours for 2021) or 5 hours (aggressive, except 2 hours for 2021) | Clean and re-oil regularly, especially in dusty or muddy conditions. |
| Spark Plug | Inspect and replace as needed | |
| Valve Inspections | 30 hours (recreational, except 20 hours for 2021) or 15 hours (aggressive, except 10 hours for 2021) | |
| Top-End Inspections (cylinder, piston) | 50 hours (recreational, except 60 hours for 2022) or 25 hours (aggressive, except 30 hours for 2022/2023) | |
| Bottom-End Inspections (crankshaft, transmission) | 100 hours (recreational use) or 50 hours (aggressive use) |