The Quick Action short-stroke throttle pulleys replace the short-stroke throttle grip required by large carburettors. The throttle rollers are designed in such a way that even a carburettor with a 34mm cross-section can be opened with a quarter turn of the throttle grip.
Ideal to combine a powerful engine with original optics also with the Oldie.
Fits with the Smallframe models only if they have a gas pipe with 21mm diameter as standard. This narrower, old type uses gas train rollers with flanged pipe part which is inserted into the actual gas pipe and secured by a specially shaped split pin.
Attention: With this gas roller a stop must be individually attached (e.g.(e.g. by means of a bore hole and an M6 screw).
This is necessary for a zero position of the throttle grip.
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