fcr stiffness

I have a quad with a yzf400 motor and the throttle was converted to thumb and after 2 laps around the track, my thumb actually swells up from the stiffnesss. Is there any mods I can do without going to a twist throttle?

Unfortunitely not, I have many friends that ride quads competetively up and down the east coast. Each of them wound up installing throttle tube kits because of injuries to their thumbs and general discomfort.

Bonzai :cry:

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