Let’s install a clutch master that’s lightweight, cuts cleanly, and offers excellent operability.
The dedicated switch arrived, so I’ll install it. The plate is a bit rough in construction.
Given the price point, the switch wiring line passes above the mounting hole and has quite a wild feel to it.
The switch mounting method felt a bit rough, but “necessary and sufficient”—this approach seems workable.
For the tank, I chose the H2 OEM unit, which excels at fluid management in terms of capacity and cleanliness.
With this master on a naked bike with mirrors installed, what should I do about the tank stay?
From experience, co-tightening with mirrors as much as possible yields very poor results. I’d like to mount it from the master clamp, but the upper side is hinged, so that’s not possible.
I recalled the switch I made previously for the Lockheed radial master and fabricated one.
Last time, the release side was changed to a K-FACTORY large-diameter piston. Since it’s another manufacturer’s product, I won’t mention the piston diameter specifics. The 1φ on the master side naturally has a much larger effect. My guess is that regulations exist because seals and other components end up with round-number dimensions. However, the release side seems to have some room to spare.
Just this lower release side alone delivers more than sufficient effect. It’s noticeable compared to stock, but roughly 10–20% lighter—a highly recommendable part.
To match the larger release, I’ll also increase the master diameter.
• Standard release & 16φ clutch master—not a recommended combination.
The push side diameter becomes too small, resulting in “can’t cut fully” → “lever is far away to increase stroke.”
• Standard release & 19φ clutch master cuts well, but the feel becomes heavier than stock. Of course, both are radial masters, so operability is excellent.
I didn’t measure this time, but it would be perfect to remove the clutch cover and measure how much stroke occurs before and after the change (how much the clutch disengages).
• In any case, it cuts lightly and sharply. Like a Goose 350 or so? (It just happened to be in front of me.)
• Since it cuts cleanly right at hand, there’s no need to move the lever far away.
• Radial-like feel. Instead of the stock half-clutch’s awkward on/off, you get dial-like control where you can modulate strength up and down—a high-degree-of-freedom feel.
Appearance improves, operability improves. I thought, why didn’t I install this kit sooner? I believe this is a kit that smooths out the few control elements, allowing you to focus solely on riding.
