○Free length: 80mm ○O.D: 53.2mm ○Load at use: 638N
*Kitaco's clutch center springs are for high-tuned engines.Installing only Kitaco's center spring on a stock bike without power will interfere with gear shifting and may result in a reduction in speed. Example of a spring that is too strong: The pulley does not start shifting in low gearing and the maximum speed drops. This will cause the engine to rev up to its limit even at low speeds, causing problems such as seizure and overheating. *Clutch center spring is a tuning (balance correction) part as well as weight roller, so the best spring strength will be different depending on the driver's own use of the machine, weight, and also the preference of driving characteristics.
The clutch center spring quickly and forcibly returns the high ratio pulley to the low ratio with the force of the spring when decelerating in a curve, accelerating rapidly, or on a hill.Kitaco's clutch center spring has been reinforced to allow quicker return to low gearing for sharper acceleration. The shift start speed (shift keep speed) of the V belt speed change function (pulley) is shifted to the high speed side, and powerful running characteristics are obtained by keeping the torque band.
Points of Attention
* If there may be an instruction manual included, it will be written in Japanese.
Compared with OEM's Spring, the number of turns and length are not much different, but it is rather hard. It is necessary to hold down strongly when you make a pair, and it is too hard to pinch Belt and it can not be done by hand. And as the Engine groaned, neither acceleration nor maximum speed comes out, so I was at a loss for use. It is impossible to do so because V BELT will also incur considerable burden.View Detail
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