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Speedmart Tech Support

Pro Shock Numbers
SpeedMart Tech Team

What do the Pro Shock Numbers mean?


Example Shock-A856B

The first letter or combination of letters signifies the body type
A = Aluminum large smooth body
AC = Aluminum large threaded body
ASB = Aluminum threaded small body
SBA = Aluminum smooth small body

The first digit is the shock stroke.
In the example shock the stroke is 8

The second digit is the shocks compression valve code
In the example shock the compression code is 5

The third digit or third and fourth digit is the shocks rebound valve code.
In the example shock the rebound code is 6.

The letter B at the end of the part number signifies that the shock includes
bearing mounts or ends.

Shock Stroke- The shock stroke is the amount of travel that the shock piston
has. How far the shaft will move from full extension to full rebound.

Compression Valving-Determines how much force it takes to compress the shock. The higher the valve number the more force it will take to compress the shock.

Rebound Valving- Determines how much force it takes to extend the shock.
The higher the number the slower the shock will extend.