# Lock-Up

> Lock-Up — a motorsport term in the TRAACKS glossary.

**URL:** [https://traacks.club/glossary/lock-up](https://traacks.club/glossary/lock-up)
**LLM context:** [https://traacks.club/glossary/lock-up/llm.txt](https://traacks.club/glossary/lock-up/llm.txt)
**Category:** Technical

## Definition

When a wheel stops rotating under braking while the car is still moving, causing the tire to skid. Lock-ups create flat spots on the tire surface, which cause vibrations and reduce performance. They often appear as a puff of tire smoke.

## Term Details

| Field | Value |
| --- | --- |
| Term | Lock-Up |
| Slug | lock-up |
| Category | Technical |
| Related terms | Braking Zone, Flat Spot, Tire Degradation |
| URL | https://traacks.club/glossary/lock-up |

## Related Terms

### Braking Zone

The area on the track where a driver applies the brakes before entering a corner. The length and position of the braking zone depend on speed, car performance, tire condition, and weather. Late braking is a common overtaking technique.

- [View on TRAACKS](https://traacks.club/glossary/braking-zone)
- [LLM context](https://traacks.club/glossary/braking-zone/llm.txt)
- [Markdown](https://traacks.club/glossary/braking-zone/markdown.md)

### Flat Spot

A worn patch on a tire caused by a lock-up during braking. The flat area creates vibrations that can be felt through the steering wheel and chassis, reducing performance and comfort. Severe flat spots may require an unplanned pit stop for new tires.

- [View on TRAACKS](https://traacks.club/glossary/flat-spot)
- [LLM context](https://traacks.club/glossary/flat-spot/llm.txt)
- [Markdown](https://traacks.club/glossary/flat-spot/markdown.md)

### Tire Degradation

The gradual loss of tire performance over a stint due to wear, thermal degradation, and surface changes. Managing tire degradation through driving style, car setup, and race strategy is a fundamental aspect of modern motorsport.

- [View on TRAACKS](https://traacks.club/glossary/tire-degradation)
- [LLM context](https://traacks.club/glossary/tire-degradation/llm.txt)
- [Markdown](https://traacks.club/glossary/tire-degradation/markdown.md)

## Glossary Categories

- **Racing**: 12 terms
- **Technical**: 10 terms
- **Strategy**: 5 terms
- **Regulations**: 15 terms
- **Track & Circuit**: 9 terms
- **Vehicle & Setup**: 6 terms

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