Clutch shoe weight?

[Logan #34's Dad]

Anyone tell me what the "ideal" clutch shoe weight should be? There are all these "lightened" clutches out there and I was wondering what each of the three shoes should weigh individually. Someone happen to have a Koso or Mallossi rear clutch laying around? After drilling a stock clutch out, my shoes weigh about 155grams each. That seem okay?

[ecmini1]

Thats about correct. Drill to much and have swiss cheese lol.

Theres no magical # due to eng. mods vary and rider weight, gearing ect. As long as the power curve is there your good.

[etondaddy]

Hey Rock I have a Koso lightened clutch with one moto on it I got from Max RPM I can take a shoe off and weight it for ya. It's for sale by the way.......... I bought it and it wasn't the problem. I need to get it out and e-bay it. Let me know?

Mike Kozura

[Reimer Racing]

The Koso clutch shoe weight is 78.84 grams each
the entire clutch shoe assby. weight is 440.24 grams.

Stock Polini is 505.43 grams

Stock Polaris Aproxx 719.88 grams

The Koso set up is a lot lighter.

[pitviperacing]

bought a 450g clutch put the tools to it , got it to 390g :devil:

got about 6000rpm of stall for now but waiting for test & tune for the dirt drags:macho