Cannondale 2011 LEFTY 126564.PDF Owner's Manual page 13

Recommended Air Pressure
To set air pressure
1. Make sure the bottom of the fork is clean. Remove the Schrader valve cap. Attach a bicycle suspension pump to the valve
end.
2. Pressurize the fork to an initial starting air pressure of 65-75% of rider weight.
3. Add or release air to achieve 20-30% sag.
MODEL
TOTAL TRAVEL (mm)
MINIMUM SAG 20% (mm)
B (mm)
MAXIMUM SAG 30% (mm)
B (mm)
B = Overall Lefty length at sag . Measure the distance between bottom of outer collar to bottom of spindle.
PRESSURE LIMITS
Minimum: 50 psi, 3.4 bar
Maximum: 225 psi, 15.5 bar
2. Now, to fine tune the sag. Without a rider, measure the fork from the bottom edge of the outer collar to the bottom
edge of the spindle.
handlebar as if you were in a riding position; measure length (B), the fork compressed under your weight.
To calculate the sag, subtract : A - B = SAG (mm).
Add air pressure to decrease sag.
Release air pressure to increase sag.
NOTICE
MAKE SURE THE SUSPENSION PUMP AND FORK
SCHRADER VALVE ARE CLEAN. Attaching to a dirty
valve or with a dirty pump end can result in pumping
the dirt into the fork. This could result in damage
and air loss.
MAX
140
28
660
42
645
Next, have someone assist you. Sit on the bike with your feet on the pedals and hands on
ULTRA SPEED
120 100
24 20
640 635
36 30
630 625
SUGGESTED SAG RANGE
XC - 20-25%
TRAIL 20-30 %
11
126564.PDF
29'ER
90
18
645
27
635