20mm Steel Spring Clamp, used to connect the twist-on Flextube Exhaust Extensions on Fiala etc.
25mm Steel Spring Clamp, used to connect Exhaust Solutions Fiala , Zenoah, DA etc
28mm Steel Spring Clamp
Technical Dimensions
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SETUP GUIDE by DR.G
DR.G's GUIDE TO CARBURETOR BUTTERFLY TRAVEL, THROTTLE SERVO SPEED, ADJUSTING THE CARBURETOR NEEDLES