What It Is
The Hinson single spring clutch assemble is Hinson's newest addition to its lineup of high-quality clutch components. The single spring unit contains one big Belleville spring that acts in the same fashion as four- or six-springs that are found in traditional clutches. The single spring is said to resist fading and give the clutch a consistent feel and pull over the course of a long moto when the heat of the plates and traditional springs tend to cause clutch slippage.
Not only does the single spring design make for less moving parts in the clutch, allowing for easier maintenance, but it also does exactly what it's designed to do-reduce fading and provide a more consistent feel. Even in a long moto, I noticed that the feel of the clutch remained smoother with the single spring. Fading wasn't an issue, as the feel at the lever remained constant, providing a smooth and even pull under even the hottest conditions. As a result when slipping the clutch in turns, the bike hooked up, putting the power to the ground instantly.
The single spring has a stiffer feel at the lever, but I became accustomed to it quickly.
I really liked the single spring clutch assembly. I'm not too hard on clutches, however, I do notice when one begins to fade during a long moto, and the Hinson single spring clutch doesn't do that. While the pull of the lever was slightly heavier, after a few laps, I didn't notice the stiffer feel at all.