Graves Motorsports® ABY-09R1-REVB - Velocity Velocity Stack Kit

Velocity Velocity Stack Kit by Graves Motorsports®. Graves Motorsports Yamaha R1 Lower 50mm Velocity Stacks for the 2009-2014 models. These 50MM Lower Velocity Stacks with Pivots were developed by Graves Motorsports for your Cross Plane Crank R1. This item is the "Lower" stack assembly only (see item # ABY-09R1-REVT to purchase the top add-on). This stack kit improves power throughout the entire RPM range. The staggered tops allow the cylinders to share the available volume of air in the R1's air-box evenly at low and mid range RPMs. The shorter than stock lower stacks feed the R1's appetite for big air when the upper stacks raise improving top end power. These stacks developed on the Graves Yamaha Superbike give riders the drivability needed to win races. You can purchase the complete kit by ordering this item along with Part # ABY-09R1-REVB (sold seperately) or just this lower piece only for use with the stock uppers.

Features

• Made with innovations for the latest in quality
• Perfect for motorcycle applications
• Expected to provide reliable service and easy installation

Graves Motorsports® was born in 1990 out of the dreams, desire, and dedication. Both a manufacturer of performance accessories and a professional road racing team, Graves Motorsports provides privateer racers with factory-quality, race-proven performance parts. Dedicated to total customer satisfaction, the company has a growing list of trick performance items available for the Yamaha, Suzuki as well as other brands. Graves Motorsports makes rear sets, bars, exhaust systems, velocity stacks, suspension components, marker lights, fender eliminator kits, and on and on. At Graves Motorsports, they believe that craftsmanship leads to championships! All Graves Motorsports parts are designed with the utmost attention to detail using the latest equipment to ensure winning performance and unbeatable longevity.