Loud Where It Should Be Quiet
Ask anyone who puts road miles on a Kawasaki Ridge what they would change first and you tend to get the same answer. It runs hard at cruising speed. You get out on a county road at 40 or 45, settle in, and the engine is still sitting up in the RPM range like it is climbing a hill. Conversation gets harder, fuel economy is not great, and after an hour the belt is hot for no good reason.
It is easy to read that as a gearing complaint. It is really a clutch travel complaint, and the two are not the same thing.
What Full Shift Actually Means
A CVT primary shifts by squeezing the sheaves together and forcing the belt to climb outward toward the rim. As the belt climbs, its effective diameter on the primary grows and the drive ratio gets taller. Engine RPM comes down for a given road speed. That is the whole trick.
The catch is that the shift only continues as long as the movable sheave has somewhere to go. When the clutch runs out of physical travel, the belt stops climbing, and whatever ratio it reached at that moment is your top ratio. Every mile after that is spent at that RPM whether the engine wants to be there or not.
On a stock Ridge, the clutch bottoms out before the belt gets as high in the sheaves as it could. The result is a machine that is still pulling revs at a speed where it should have relaxed.
Where the Travel Comes From
The clutch cover is what determines how far the movable sheave can go before it stops. Give the assembly more room and the belt keeps climbing, which is exactly what an overdrive cover does.
The Hunterworks Kawasaki Ridge OverDrive Clutch Cover fits all Kawasaki Ridge models, two seat and four seat, all year models. Depending on load it drops cruising RPM by roughly 500 to 1000. It is the most overdrive of any OD plate on the market, and the extra clutch and belt travel is easier on the belt over the long run because the belt is not being asked to live at the same spot in the sheaves for hours at a time.
Not the Same as Shimming It
There are two other ways people chase this, and both have a real drawback. Stacking shims or running a machined OE plate gets some travel back, but those approaches use the spider as the stopping point. The spider was not designed to take that load repeatedly. You end up with excessive wear at the contact points, and the factory cover is a brittle casting that can crack when it is asked to be a stop instead of a cover.
Our cover bottoms out on the spider nut using the center of the cover, which puts the stopping load somewhere that can handle it. Same goal, much better load path.
Pairing It With Engagement
The overdrive cover changes the top end of the shift. If you also want to change the bottom end, it works well alongside a Dalton primary spring, which lowers engagement RPM and pulls the whole shift phase down. The combination is a Ridge that leaves smoothly from a stop and settles down to a civil RPM once you are rolling, instead of one that jerks off the line and then drones.
What You Should Expect Afterward
The change is most obvious exactly where the complaint lives, which is steady-state cruising on hard surfaces. Under heavy load, hauling or climbing, the clutch will shift back down as it should and you will not lose the ability to work the machine. That is the nature of a CVT. You are not permanently regearing anything, you are letting the clutch reach a ratio it was already capable of reaching.
Belt temperature usually improves alongside the noise, because lower RPM at cruise means less heat going into the belt on long runs. Quieter and cooler at the same time is a rare combination in clutching, and it comes from one part.