Behind David Knight’s 450XC – Shawn Mundy may have the
toughest mechanic’s job in motorcycle off-road racing.
- Knight is a giant. He really does throw his 450 around like it was a 125.
- Holes in the engine guard for cooling.
- Fluidyne makes thicker radiators to keep things cool.
- Safety wire on footpegs.
- Mundy and Knight check all the details before a 3-hour race.
- Brembo takes care of the braking duties. Not only do they have to be strong, but they can't fade over the grueling race.
- The rear master cylinder is one of the tricker works parts. It has tolerances machined so tight that it doesn't require any seals.
- That wheel has to be tough enough to take a serious pounding for three hours and not fail. Mundy relies on Talon's carbon fiber hub.
- FMF pipes are found on a lot of factory bikes, Knight's included.
- When Mundy does his part, Knight usually holds up his end of the deal with results like this.
- David likes a little more bite to his motor than the stock XC provides, but other than a SX-style ignition curve, the 450cc engine is relatively stock.
- Larger gas tank by IMS.
- KTM racing has a deal with Motorex to keep their engines well lubricated.
- Knight uses a massive 52mm WP fork.
- Riding under the Factory KTM tent is about as high-status as you'll find in off-road racing.
- Most GNCC riders chose a 2-stoke due to fatigue after 3 hours of riding. Knight is fine with a 450.
- Mundy was tapped to work with Knight once he made the switch to full-time American racing.
- The Twin Air filter pin is safety-wired, and extra foam to keep dust out.