Progressive Suspension 12 series shocks for vintage Honda motorcycles.
The 12 Series are the same damper units that are utilized in the 412 Series, but they don't come with the springs. They feature double walled steel bodies, a 5-position preload adjustment and are gas charged. Springs are purchased separately to fine tune for your particular application and are available in chrome or black powder coat finishes in Standard or Heavy-duty rates.
- Five position cam style preload adjuster
- 12 series shocks are dampers only.
- Progressive Suspension springs can be mated for a customized ride
- Six-stage, automatic damping designed with a special anti-topping function
- Double-wall shock body construction for piston protection and long life
- Shocks have black powder coated finish and are sold in pairs
- Springs sold separately
- Adjustable Valving
- One Year Warranty through Progressive
- Hardware Not Included
Progressive Part Number: 12-1204B
Installation Instructions
Dimensions:
Free Length: 330mm (13") measured from center of mounting points.
Compressed Length 237mm (9.35")
Travel: 93mm (3.65")
Upper Mount: Eyelet
Lower Mount: Clevis
Fits Honda
CB350F - 1972-1974
CB350 Twin - 1968-1973
CL350 Scrambler - 1969-1973
CB360 - 1974-1977
CJ360 - 1976-1977
CL360 Scrambler - 1974-1976
CB400F Super Sport - 1975-1977
CM400 A/C/E/T - 1979-1981
CB450 - 1965-1974
CL450 - 1970-1974
CM450 - 1982-1983
CB500K - 1971-1973
CB500T DOHC - 1975-1976
CB550F Super Sport - 1975-1977
CB550K - 1974-1978
CB650 - 1979-1982
CB650C Custom - 1980-1981
CB750A Automatic - 1976-1978
CB750C Custom - 1980-1982
CB750F Super Sport - 1975-1978
CB750K - 1969-1978
CB750SC Nighthawk 1982-1983
GL1000 Gold Wing - 1975-1979
and others . . .
