This is the optional 5.5mm Carb Reducer for the O.S. Engines 12TZ Speed Spec 2 Engine.
FEATURES: O.S. Speed racing performance parts, red aluminum construction
Installs into carburetor venturi to reduce the amount of air flow
which assists in increasing the amount of torque produced
INCLUDES: One 5.5mm carb reducer and two rubber O-rings
REQUIRES: Installing included O-rings on reducer then sliding into carb
SPECS:
Height: 14.5mm (0.57")
Diameter: 5.5mm (0.22") (approx) ID @ bottom
10mm (0.39") (approx) ID @ top
12.7mm (0.50") OD main body
16mm (0.63") knurled flange at top
