Dr.Pulley HiT Clutch fit SYM MAXSYM 400i HIGH PERFORMANCE CVT modification

Description

Dr.Pulley HiT Clutch fit SYM MAXSYM 400i
HIGH PERFORMANCE CVT
The Operation of HiT Clutch
SYM MAXSYM 400i
The grip force comes not only from the centrifugal force and the friction
coefficient of clutch weight, but most importantly from the compression
mechanism—push pin & pillow system of HiT Clutch.
Better engine response, stronger grip force.
No more deformed and blued clutch bell.Improving the acceleration performance and engine response when re-acceleration. Better steel quality
Step 1: The clutch weight is driven to rotate but the initial rev is not high enough, so the clutch weight and the bell are in non-contacting
state (Fig.2.)
Step 2: When the rotating speed of HiT Clutch is high enough, the clutch weight will centrifugally fly outward to touch the clutch
bell to proceed the initial slippery clutch-in. The clutch weight is slippily contacting with the bell but the push pin is unactuated yet (Fig.3).
The friction resistance is produced between the clutch wear pad and the inner surface of clutch bell during the stage of slippery clutch-in.
Step 3: When the friction resistance is higher than the predetermined distortion strength of pillow spring, the pillow spring will be deformed or extended, and the push pin will thrust into the pillow to compress the clutch weight to grab the clutch outer very tightly. (Fig.4, the push pin is actuated and pressed against the pillow)
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