Because all shocks have slightly different sag measurements, various shocks are going to have different measurements when the rider's weight is on the bike. 

With our shocks, we recommend a specific sag setting, meaning the shocks will be adjusted specific to a length between the upper and lower mounting bolts with the rider or rider/passenger weight on the bike. We refer to this specific length as the "target eye to eye measurement". Below is our specific sag setting for each length of shock we offer, and the target eye to eye measurement you should have between the upper and lower mounting bolts once the shocks are adjusted to the proper sag adjustment with the rider or rider/passenger weight on the bike:

REVO & REVO-A:

• 12" REVO/REVO-A = 1/2" of sag (11.5" target eye to eye measurement)
• 13" REVO/REVO-A = 1" of sag (12" target eye to eye measurement)
• 14" REVO/REVO-A = 1" of sag (13" target eye to eye measurement)

REVO ARC:

• 13" REVO ARC = 3/4" - 1 1/4" of sag (11 3/4" - 12 1/4" target eye to eye measurement)
• 14" REVO ARC = 3/4" - 1 1/4" of sag (12 3/4" - 13 1/4" target eye to eye measurement)

AIR & AIR-A

• 13" AIR/AIR-A = 1" of sag (12" target eye to eye measurement)

To determine which length Legend shocks you need to match your current ride height, the first thing you will need to do measure your current shocks from center to center between the upper and lower mounting bolts when your weight is on the bike. You will then need to compare that measurement to the "target eye to eye measurements" listed above in order to determine which length of shock we offer will match your stock ride height.