Progressive Suspension 12 Series PS Shocks, 12-1201B vests the Quantum series has always

the Quantum series has always been the "go-to" helmet of choice

1973-1974 Yamaha MX360

1980-1982 Harley Davidson FXS Low Rider

650 +/- 30g ) LG to 2XL 3

HardDrive WMD Lithium 420 C

Progressive Suspension 12 Series PS Shocks, 12-1201B vests the Quantum series has alwaysProgressive Suspension 12 Series PS Shocks, 12 1201B Springs sold separately These Progressive Suspension 12 Series shocks are the same damper units that are utilized in the 412 Series without the springs and covers. They feature double walled steel bodies, a 5 position preload adjustment, and are gas charged. Progressive Suspension 12 Series shocks can be mated to a number of springs available separately to properly tune your suspension on a wide