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When running, the crankcase is pressurized by the high-speed reciprocating motion of the pistons.This excessive pressure becomes a great resistance to the piston movement and causes various adverse effects.Just by installing the internal pressure control valve, you can keep the crankcase internal pressure at a proper level, reduce engine vibration, reduce excessive engine braking, and make it easier to enter corners.
In addition, it improves the smoothness of the jerky feeling at low rpm, and you can feel the improvement of the torque as if the engine was tuned.
Points of Attention
* If there may be an instruction manual included, it will be written in Japanese.
I was not dissatisfied with the Torque fully of BONNEVILLE1200Vertical twin with 270°Crank specific fee Ring. I was not dissatisfied with the 270°Crank specific fee ring, but I personally wanted a little more sharpness in the throttle response of the Rain and Road Modes except for SportsMODE. When it is flowing, RoadMODE is good, but this Motorcycle can not change MODE without stopping. I don't always want the same Response and Power feeling as SportsMODE, but I was dissatisfied with the smallness of it. So, I decided to give it a try and installed this Valve. The result was Large correct! The power and torque of RoadMODE is still there, but the response is up. The mid-range acceleration (overtaking) is much better and I don't feel stress at all. On the other hand, after all, the effect of the engine braking of only ThrottleOff becomes slow, but it does not become ineffective, and the feeling of awkwardness is resolved with the feeling that it becomes smooth and mild. Personally, this is my favorite part with good cost performance, but I wonder if this is the right part for those who prioritize response and power over the 360°Crank. But if you are more interested in the response and power of the 360°Crank, this is not for you. The product quality is AELLA made in heaven. I have no complaints. Gold is selected to match the front fork of THRUXTONR and the rear suspension oil tank of OHLINS. It is also a good feeling to fit on the Crankcase casually and understated custom feeling. You can feel the effect more than the price. It's worth a try if your Motorcycle has Adaptation Type!View Detail
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