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2011 Yamaha YZ450F GNCC Race Test Photo Gallery

We take a lightly modified Yamaha YZ450F and put it to the test at North Carolina's muddy Steele Creek GNCC. See the full details in our 2011 Yamaha YZ450F GNCC Race Test.

The Stealth DX ($50) is a flag-style guard that mounts using 6061 T-6 aluminum mounting bars with plastic shields and flexible rubber edges.
IMS does a great job of keeping the YZ thin while offering 2.4 gallons of fuel.
Braking Batfly 270mm oversized rotor was a welcome addition in sloppy conditions.
The Dunlop MX31 tires were charged with finding traction in deep mud, wet rocks, slimy roots and even slippery wooden bridges.
Using stock suspension, we deferred to Whibley’s mechanic, Scott Brooker for settings.
Things went from bad to worse as I stalled twice and crashed four times in the first 1.5 laps. Suffice it to say that I labored through the opening laps until reaching the gas stop.
This project goes to show that even normal guys like us can enjoy motocross and grueling off-road on the same machine.
Plowing through mud and lugging up slimy hills was much easier with the additional flywheel weight. This was definitely our favorite upgrade.
With the bike prepped by Yamaha's factory GNCC team, there was nothing left to do but sign up for two hours of mud and suffering.
GYTR has teamed with FMF to offer multiple exhaust options for the YZ-F.
The YZ450F proved capable of winning against determined amateur competition. Further delving into the off-road potential would only make this bike better.
This was definite the type of terrain for Dunlop’s MX31 soft-terrain tires.
For extra control, Yamaha installed a set of medium compound slim grips with half-waffle design ($10).