Now available for Pro 4 owners is a new
Aluminum Input Shaft Set. Made from precision machined aluminum alloy, this is a high performance upgrade for serious racers. Included in the set is a lightweight aluminum input shaft that replaces the stock front steel input shaft. Also included is a single-piece aluminum rear input shaft that replaces the steel input shaft and spur gear adaptor. The set yields a savings of 6 grams of critical drivetrain weight, for quicker acceleration and higher speed. Complete installation instructions are included.
