4 Pack Universal Motorcycle Carburetor Intake Air Filter Velocity Stack 39mm Silver Fits Honda CB500 CB550 CB75 Kawasaki KZ400 KZ550 KZ650 Suzuki GS550 Cafe Racer Bobber Chopper Moped

Set of 4 silver 39mm velocity stacks for Honda Kawasaki and Suzuki models listed. 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:

KZ400A Deluxe - 1977-1978
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.