TM RACING 250Fi MX, Use And Maintenance Manual

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4 S T R O K E S 4 S T R O K E S 4 S T R O K E S 4 S T R O K E S
BASE SUSPENSION SETTING BASED ON THE WEIGHT OF THE RIDER
For optimal motorcycle driving performance and to prevent the fork, shock absorber, large swing arm and frame from being damaged,
the base calibration of the suspensions must be adjusted according to your weight. The base calibration of the suspensions (both the
fork and shock absorber) involves assembling a special spring and a series of adjustments of the compression and rebound braking.
TM motorcycles come calibrated for a body weight (considering full protective gear) of 70-80 Kg. Adjust the calibration of the suspen-
sions if your weight does not fall within this range.
The main element to be checked is the spring, both of the fork and the shock absorber. To check for correct spring rate, first measure
the motorcycle sag. Then adapt the compression and rebound braking. For technical clarifications on the operation and calibration of
the TM motorcycle suspensions, refer to the nearest TM dealer.
ADAPTING FORK BASE CALIBRATION
Exact fork sag cannot be established for several reasons. Minor variations of your body weight may be compensated by adjusting the
compression braking. However, if your fork often reaches the end of travel, mount stiffer springs in order to prevent damage to the
fork and frame. Re-adjust the compression and rebound braking.
ADAPTING SHOCK ABSORBER BASE CALIBRATION
To make sure that the shock absorber spring is suitable for your weight, check rider sag. However, the shock absorber static sag must
first be adjusted.
Both the static and rider sag can be checked through simple measurements performed on the motorcycle.
3.2 ADJUSTING SUSPENSIONS