Set of 4 black 39mm velocity stacks for Honda CB500, CB550 & CB750. Check the fitment list below for details. Lightweight aluminum construction just like the original velocity stacks on vintage race bikes from the 60's. Has a concealed micro mesh screen filter backed with a larger mesh to keep it in place at the base of the velocity stack. Will not hit the frame on CB500, CB550 & CB750. All other models check dimensions before purchase.
Includes 4 velocity stacks with mounting clamps. Clamps are painted back and tend to chip. Can be touched up easily with spray paint if necessary.
NOTE: Velocity stacks let more air into the carburetors. You will need to install larger jets and or make other adjustments to the carburetors.
NOTE: Be sure to measure your carburetor prior to purchase. Also measure how much room you have between the carburetor and the frame or any side covers. Use the dimensions below to see if these will work on your bike. Just because the filters fit the carbs doesn't mean they'll fit in the bike without some obstruction.
NOTE: Velocity stacks are not CNC aluminum. They are stamped aluminum.
Dimensions:
39mm ID where it mounts to the carburetors
63mm total length
60mm outer diameter
Fits Honda:
CB500K - 1971-1973
CB550F Super Sport - 1975-1977
CB550K - 1974-1978
CB750A Automatic - 1976
CB750F Super Sport - 1975-1976
CB750K - 1969-1976
Fits Kawasaki:
KZ550A - 1980-1983
KZ550C LTD - 1980-1983
KZ550D/H GPZ - 1981-1983
KZ650B/F - 1977-1980
Fits Suzuki:
GS550 - 1977-1979
GS550E - 1977-1979
GS550L - 1979
NOTE: Fits other model bikes as well. Check your carburetor flange diameter before purchase.
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Fit perfectly 75 CB550F Supersport
They fit with some wiggling around the frame. Very thin metal and the mesh can be easily removed to clean. They seem to fit and the clamps keep them on. So these will work and do fit. All though they are a bit more than i would like in the way of cost because its thin metal and i easily scratched the black paint getting them on. Perhaps a slightly thicker gauge to make them more sturdy would be nice. Maybe 1 cm shorter so they don't push right up on the frame. Just some notes. Otherwise they fit fine and seem to get the job done. Having a hard time getting my carb adjusted but for a full open. I have 110 mains and 40 pilots and needles set on the 3rd notch down. Had problems with this bike for a while though so not the stacks fault. Just be aware, dont throw away the factory box and expect to tune your bike if this is your first time running stacks.
