BIKET WORKSHOP SETUP TOOL

Suspension calculator

Get a reliable starting point for your Trek mountain bike, then fine-tune sag for your riding style and terrain.

01Choose your bike
02Add fully equipped rider weight
Unit

Include helmet, shoes, hydration pack and normal riding gear.

Set, cycle, measure, repeat.

1. Open damping
Start with compression fully open unless the component manufacturer specifies a centred position.

2. Equalise chambers
Cycle the fork or shock several times as pressure is added.

3. Measure sag
Use the O-ring, wearing all normal riding gear, and adjust in 5 psi increments.

Suggested starting points only. Component substitutions and aftermarket changes are common; confirm the exact fork and shock fitted to the bicycle and never exceed the manufacturer’s maximum pressure. Final setup must be verified by sag measurement.