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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
KTM 450 MXC Dirt Bike (2003-2005)
The KTM 450 MXC, produced from 2003 to 2005, was a robust off-road motorcycle designed for cross-country racing and aggressive trail riding. Powered by a liquid-cooled, single-cylinder, SOHC, 4-stroke engine with a consistent displacement of approximately 448 cc across these years, it offered a blend of power and durability. This model was primarily offered as a single configuration, often known as the "KTM 450 MXC Racing 4-Stroke," without distinct trim levels within a given year. While the engine displacement remained constant, each model year brought significant technical updates. The 2003 model marked a shift to a 450cc engine with lighter die-cast cases and upgraded WP 48 mm USD forks. In 2004, the MXC received a "carryover" designation but benefited from numerous enhancements, including a new chromoly frame, a longer swingarm for improved traction, and revised suspension settings. The 2005 model continued with the established 448 cc engine, incorporating further refinements to its chassis and suspension, maintaining its competitive edge. These yearly improvements focused on performance, handling, and rider ergonomics. Q: How do I ensure this part fits my KTM 450 MXC?
A: To guarantee a perfect fit, please use the year and edition selector at the top of this page.
Maintenance
| Component | Interval | Details |
| Engine Oil Change | 2003: Recreational: 10 hours; Aggressive/Race: 5 hours. 2004-2005: Recreational: 15 hours; Aggressive/Race: 10 hours. | Change oil filter with each oil change. |
| Air Filter Service | 2003: Recreational: 15 hours; Aggressive/Race: 5 hours. 2004-2005: Recreational: 10 hours; Aggressive/Race: 5 hours. | Clean and re-oil regularly. Check more frequently in dusty or muddy conditions. |
| Valve Inspections | 2003: Recreational: 30 hours; Aggressive/Race: 15 hours. 2004: Every 20 hours. 2005: Every 20 hours (consider 15 hours for aggressive riding). | |
| Top-End Inspections | 2003: Recreational: 60 hours; Aggressive/Race: 30 hours. 2004-2005: Recreational: 40 hours; Aggressive/Race: 30 hours. | Includes cylinder, piston, and rings. |
| Bottom-End Inspections | 2003: Recreational: 100 hours; Aggressive/Race: 50 hours. 2004: Every 80 hours. 2005: Every 80 hours (consider 60 hours for aggressive riding). | Includes crankshaft and bearings. |