K2 Bike K2 BICYCLE - Manual (Page 43)

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J. Lithium Set-Up Instructions
1. Spring Preload Adjustment. To receive the best performance from your K2 Lithium, it is necessary to adjust
the suspension.
a. What is Sag? “Sag” is the amount a shock compresses (or sags) when you sit on the bicycle. Increasing the
spring preload will make the shock sag, or compress less. Decreasing the spring preload will make the shock
compress, or sag more. Sag should equal 25% of the shock stroke for most usage. You will get the best
performance if you achieve the proper amount of SAG with one turn of preload.
b. Adjusting the Sag. The shock stroke of the K2 Lithium is 2.0”/50mm and the recommended sag would be
25% of the total travel, or 0.5”/13mm. In general, the following procedure would allow you to determine
the sag for any shock unit.
(1) Measure the shock eye-to-eye (the distance from the center of one mounting bolt to the center of the
other mounting bolt). Call this dimension “A.”
(2) Sit on the bicycle in a normal riding position, weighting both the handlebars and saddle. Have an
assistant measure the shock unit eye-to-eye. This is dimension “B.”
(3) The difference between dimensions “A” and “B” is the sag. If the sag is less than 25% of the stroke,
decrease the preload. If the sag is greater than 25% of the stroke, increase the preload. The preload
adjustment process varies a bit depending upon the type of shock unit the bicycle is equipped with.