LAISAArm pump after a few laps
When your bike shows "Arm pump after a few laps", these are the most likely causes - ranked by relevance: The standing attack position, Compression. LAISA separates setup causes (adjusters, components) from riding technique.
Short answer for this problem
- Recommended starting point
- Check first: The standing attack position
- Why
- Main cause: gripping too hard. Loose arms and a centred attack position take the load off your forearms - light hands, heavy feet.
- How to test it
- Ride the drill deliberately for a few laps on the same section and watch whether the behaviour changes.
- Source
- LAISA diagnosis catalogue, hand-authored and editorially released Methodology →
- Last reviewed
- No review date documented
The order comes from the stored strength of the symptom-cause link in the catalogue - per symptom, not across symptoms. These are not probabilities and not measurements.
Suspension
Why this could fit: A harsh fork adds fatigue - soften the compression a touch.
How to check it: Read the current value off the bike and compare it with the recommended one. Write it down before you change anything.
Smallest change: 1 click - clicks out from fully closed
Technique
Free. Pick bike, track and riding style.
Related symptoms
A starting point to verify on the bike - not a safety guarantee. Change one thing at a time and check on track.