The numbers are the lengths of the shocks that you need to be the same as the BJ4. The fronts are the same as a B4 however the B4 Rear shock is smaller than the BJ4 by 0.1 of a mm. The lengths i have quoted are from the thread to the top of the shaft.
Offset spring cups
http://www.gshobby.com/index.php?mai...mage&pID=15598
If im wrong please somebody correct me.
