TRIONLAISA
All symptoms

Bike will not hold a tight line

When your bike shows "Bike will not hold a tight line", these are the most likely causes - ranked by relevance: Rear ride height, Fork height in clamps, Vision and line choice. LAISA separates setup causes (adjusters, components) from riding technique.

Short answer for this problem

Recommended starting point
Check first: Chassis: Rear ride height
Most important change
Smallest documented change: 1 mm - shock length adjustment
Why
Too little rear ride height makes the steering lazy - raise the rear (or drop the front) to sharpen turn-in.
How to test it
Read the current value off the bike and compare it with the recommended one. Write it down before you change anything.
Source
LAISA diagnosis catalogue, hand-authored and editorially released Methodology
Last reviewed
No review date documented
Pick your bike to apply the fixes directly

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

Chassis: Rear ride heightCheck first

Why this could fit: Too little rear ride height makes the steering lazy - raise the rear (or drop the front) to sharpen turn-in.

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 mm - shock length adjustment

Chassis: Fork height in clampsCheck next

Why this could fit: Raise the fork in the clamps (drop the front) so the bike turns quicker and tighter.

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 ring - tube protrusion above top clamp

Technique

Calculate a setup for my bike

Free. Pick bike, track and riding style.

Related symptoms

Front chatter on corner entryFront pumps / dives harshly under hard brakingFront pushes (understeers) on entryNo front feel / grip when tyres are cold

A starting point to verify on the bike - not a safety guarantee. Change one thing at a time and check on track.