US AMA Pro Racing BUELL XB12SX

ZTL-2 Front Brake: Proven through multiple wins in US AMA Pro Racing, the Buell Zero Torsional Load (ZTL-2) front brake utilises a 4-pad, 8-piston caliper and single 375 mm rotor. The caliper casting was optimised for clamp stiffness, yielding a more progressive and connected braking feel to the rider. New for 2010, the flycut ZTL-2 logo adds a trick look to the caliper. The rim-mounted design eliminates the need for load-bearing spokes or even a second disc, resulting in a front-end assembly that is significantly lighter than competitive designs.

6-Spoke Cast Aluminium Wheels
The Buell 6-spoke front wheel is extremely light, reducing steering inertia and unsprung weight for better handling on the track or less-than-perfect streets.
Underslung Exhaust
Exhausts are heavy and hot. It doesn't make sense to hang them up high and off the back of the bike and close to the rider. Our underslung exhaust - a Buell staple since 1985 - concentrates the weight underneath the chassis to provide greater Mass Centralisation. The result is a clean, uncluttered look, improved flickability and superior handling. It also features a large-volume muffler tuned to produce a linear horsepower and torque curve.
Frame and Swingarm
Handling is key to everything we do. That's why our massive frames and swingarms are made of aluminium. Lightweight and extremely rigid, they minimise torsional flex and optimise lateral flex for control in the corners. Incorporating the fuel tank into the frame and the oil reservoir into the swingarm also improves handling. By lowering the placement of the fluids, the centre of gravity shifts downward, which explains why a Buell flicks so effortlessly through corners.