
3736
STEP 14
REAR SUSPENSION SET UP
First check the spring rate-chart on this page to make sure that the spring tted on
your M29 is within range for your rider weight. If the spring is too hard or too soft
you will need to change it. Please see our Tech Videos section on our website to
see how to change the coil on your shock.
SPRING RATES AS STANDARD
PRO MODEL: Öhlins TTX22M COIL
457 (M) 502 (L) 548 (XL)
Frame travel: 208mm. Shock stroke: 70mm (2.76"). Shock eye-to-eye: 250mm.
Shock sag: 35% when sitting on the bike.
Shock preload: Min-1.5 turns / Max-5 turns.
STEP 15
SETTING SHOCK SAG
Just as you did with your forks you now need to set
the sag on your rear shock. The optimal sag on your
rear shock is 35% of the piston’s movement inside the
shock body (stroke) for both the Öhlins equipped PRO
model and the DVO on the EXPERT. The distance
between the two shock mounting bolts (eye-to-eye)
without a rider on the bike is 250mm for both shocks.
Sag at 35% (of the piston) equates to a 24.5mm
reduction in the eye-to-eye measurement. So the
correct eye-to-eye measurement for 35% sag on both
of these shocks is 225.5mm (250-24.5 = 225.5mm).
With the help of a friend, sit in a normal riding
position in full riding gear on the bike, pedals level
(A). Bounce up and down on the bike a few times
(B) and then gently sit back down. While still sitting
on the bike, and with the shock slightly compressed
(sag), measure the length of the shock (eye-to-eye)
and record that number. To check the amount of
sag just minus the original number from the new
measurement, that will be your sag measurement.
If the eye-to-eye measurement is 225.5mm that will
give you a sag measurement of 24.5mm, which gives
you the exact 35% sag rate you are looking for.
While adjusting your rear shock sag, keep in mind
that you must keep your total turns of spring preload
at a minimum of 1.5 turns and a maximum of 5 turns.
If your sag number is higher than 35%, increase the
spring preload by turning the preload collar clockwise
(2-5 turns) (C). If your sag number is lower than 35%,
decrease the spring preload by turning the preload
collar counterclockwise (minimum of two turns from
base). Check the sag measurement again and adjust
as necessary. If you cannot get the correct sag you
will you will need the next corresponding spring rate
to get your sag dialed in.
A
B
C
SHOCK: PRO ÖHLINS TTX22MCOIL, EXPERT DVO JADE COIL
SUGGESTED STARTING POINTS FOR SETTING UP YOUR SHOCK
RIDER SPRING RATE REBOUND LSC HSC
WEIGHT CLICKS
PRO EXPERT
(lbs) (kgs) Öhlins DVO PRO / EXPERT P EP E
100 45 251 250 7 11 16 14 - 12
110 50 251 250 7 10 16 14 - 12
120 54 343 350 7 9 15 13 - 11
130 59 365 350 6 9 15 13 - 11
140 63.5 365 400 6 8 14 12 - 10
150 68 411 400 6 8 14 12 - 10
160 73 457 450 6 7 13 11 - 9
170 77 502 450 5 7 13 11 - 9
180 82 502 500 5 6 12 10 - 8
190 86 548 500 5 6 12 10 - 8
200 91 548 550 4 5 10 9 - 7
210 95 605 550 4 5 10 9 - 7
220 100 605 600 4 4 9 8 - 6
230 104 640 600 3 3 9 8 - 6
240 109 640 650 3 2 8 7 - 5
250 113 674 650 3 1 8 7 - 5
EXPERT MODEL: DVO JADE COIL
450 (M) 500 (L) 550 (XL)
(Rebound: Clicks out from fully closed. Low speed and high speed refers to compression)
PRELOAD
COLLAR