The Progressive Suspension 412 Series shocks are simply the best value shock on the market today. The 412s simple, durable design means they will be an improvement to your motorcycle's suspension performance for as long as you are riding. The double-wall steel body construction with nitrogen charged, multi-staged velocity sensitive valving gives you smooth, consistent damping. A five position cam style preload adjuster lets you dial in your ride whether you're standard rider or heavy loader.
Heavy-Duty is recommended for bikes that are operated at or near the manufacturer's maximum load rating over 50% of the time. Price per pair.
Maintenance schedule: Honda recommends checking your suspension every 8000 miles or 12800 km.
HOW TO ADJUST FOR LOAD WEIGHT:
Target Ride Length (in) : 13.00Target Ride Length is the length of the selected shocks, installed, and as measured between the upper and lower shock mounts *,
when the full weight of the rider(s) & gear are on the bike and
ready to ride. This is a fast and easy way to set your rear suspension
at optimum Ride Sag (1/3 of total suspension travel)With
the shocks selected above installed and the full weight of the rider(s)
& gear on the bike as it will be ridden, measure the distance
between the upper and lower shock mounts (center to center)***. If your
measurement is less than the indicated Target Ride Length, increase the
spring pre-load** to raise the bike until you achieve the Target Ride
Length. If your measurement is more than the indicated Target Ride
Length, reduce the spring pre-load** to lower the bike until you achieve
the Target Ride Length. Achieving the Target Ride Length in this manner
sets the rear suspension ride sag for optimum performance and comfort.
**Air pressure for 416 Series shocks.
*** For Adjustable length shocks -Target ride lengths specified are
with shock length adjustment set at the shortest length. If adjusting
the shocks to a longer length, add the same amount to the target ride
length. Example: If you lengthen the shocks by 0.38", be sure to add
0.38" to your target ride length.