inputs
mm
stroke = shaft travel inside the damper body
mm
total rear axle travel from sag to bottom-out
%
sag % of shock stroke — not wheel travel
kg
include kit, pack, and gear
kg
fully built, including water and tools
Spring rate is estimated from total system weight, sag target, stroke length, and the calculated leverage ratio.
The range uses 55%–65% rear weight fraction to account for riding position variation. Start in the middle and tune from there.
shock dimensions
results
Adjust inputs to calculate spring rate.