Bert Flywheel Housing Spring for Idler Gear

Product Descripton:

Thousands of races have been have been won with Bert Transmissions. Bert Transmissions feature dog-tooth final drive for butter-smooth shifts and positive engagement. By significantly reducing drive line bind, the Bert Ballspline Transmission allows the rear suspension to move faster and smoother, greatly improving traction on todayas dry, slick racing surfaces.