Shockwave Parts
Finger Caliper for Coil Shock SAG
Finger Caliper for Coil Shock SAG
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Finger Caliper - Shock Sag Measurement Between Coils
Measure rear shock sag precisely on coil shocks, even when the shaft is hidden between tight spring coils. This finger-mounted caliper gives you accurate, metal tool-free sag readings without risking scratches or damage.
Alternatives & Extras
- If you prefer to do it visually, use the Rear Shock SAG Tool and eyeball the gap between shaft and sag ring.
- Sag Clips also work well, but can be tricky to remove on steel springs with tight coils.
- Need help choosing a spring? Try the Coil Spring Rate Calculator.
Looking for Air Shock Tools?
- Rear Shock SAG Tool for air shocks
- Wheel Sag Calculator to estimate effective travel
Why It Matters
Getting rear shock sag right is crucial for performance. If your bike feels harsh, too soft, or bottoms out too easily, it’s usually a setup issue, not a shock issue. Accurate sag measurement is the first step.
On coil shocks, where there’s no visible gradient like on RockShox, tools like this make all the difference. Take your time, measure it properly, and your ride will feel dramatically better.
Reminder
For tunnel-mounted shocks (inside frame tubes), this tool will not fit. A specific tunnel caliper is available separately.
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