In the original kf the Pistons were the same front and rear. Many people drilled out the rears to 1.6-1.7mm. In the new kf kit the rear pistons are the right size so no drilling required.
Look on petit rc for a setup, I generally go for 550 front and 400 rear in the kf2. Have a look at Darren Bloomfielfd setup for the original KF and you won't be far wrong.
I can help you out next Thursday if you like?
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SHRCCC Committee - Membership secretary & Treasurer.
Amature racer, professional crasher.
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