The Robinson Industries Billet Input Shaft is an OEM Replacement for the Suzuki Hayabusa and GSX-R1000 Counter Shaft. Machined in the USA from Aircraft quality steel and double tempered in a state-of-the-art heat treat furnace for extra strength. To avoid significant motor damage, DME Racing recommends that you replace the stock shaft for any high-performance applications. FITMENT Suzuki Hayabusa / Gen 1 and Gen2 / Replaces OEM Part# 24120-24F00 Suzuki GSX-R1000 / 2001-2004 / Replaces OEM Part# 24120-40F00 FEATURES Machined from Aircraft quality steel Includes 1/8 NPT plug for push rod block off for slider clutch applications. Double-tempered in a state-of-the-art heat treat furnace Made in the USA NOTES It can be used with OEM gears or Robinson Billet Gears. (Not Included) For Hand Clutch use, a custom push rod MUST be used (Sold Separately, #431) Unfortunately, this product is not compatible with the Hayabusa Gen3 model. Suzuki made some changes and moved the oil holes and shortened the clutch side of the shaft for this particular model. However, it could still be utilized if you use a Gen1 or Gen2 bushings and clutch assembly. INCLUDED Billet Input Shaft 1/8 Npt Plug Clutch Hub Nut What Does the Motorcycle Counter Shaft do in your Transmission? The counter shaft in a motorcycle is an essential component of its transmission system. Its purpose is to transmit power from the motorcycle’s engine to the transmission and eventually to the wheels, allowing the bike to move. Here’s how the counter shaft works: Power transmission: The counter shaft is connected to the engine’s crankshaft. When the engine runs, it transfers rotational power to the counter shaft. Gear engagement: The counter shaft is equipped with a series of gears of different sizes, known as pinion gears. These gears are engaged with corresponding gears on the transmission’s main shaft. Gear ratio: Each pair of gears on the counter shaft and main shaft creates a specific gear ratio. These gear ratios determine the speed and torque of the motorcycle in different gears. Shifting: When the rider changes gears using the gear shifter, the transmission system selects a different pair of gears on the counter shaft and main shaft, changing the gear ratio and thus, the speed of the motorcycle. Power transfer to the wheels: As the engine’s power is transmitted through the counter shaft and the transmission, it finally reaches the motorcycle’s rear wheel via the final drive system (e.g., chain, belt, or shaft). This power transfer allows the motorcycle to move forward at different speeds, depending on the gear engaged. The counter shaft plays a crucial role in converting the engine’s power into usable force, allowing the rider to control the motorcycle’s speed and torque according to the road conditions and riding requirements. It is an integral part of the overall transmission system in motorcycles.
