BJJ Leg Lock Fundamentals: Heel Hooks, Ankle Locks & Kneebars
BJJBJJ App Team·⏱️ 1 min read·🔄 Mar 31, 2026
☰Contents
Learn BJJ leg lock fundamentals: inside heel hook, outside heel hook, straight ankle lock, kneebar entries and safe tapping.
Contents
Leg Locks: The Lower Body Submission System
Leg locks have transformed modern BJJ and no-gi grappling. Understanding the hierarchy — from straight ankle lock to heel hooks — builds a complete lower body attacking game.
Leg Lock Hierarchy by Risk
| Submission | Target | Gi/No-Gi | Risk Level |
|---|---|---|---|
| Straight Ankle Lock | Achilles tendon | Both | Low |
| Kneebar | Knee ligaments | Both | Medium |
| Outside Heel Hook | Lateral knee | No-gi preferred | High |
| Inside Heel Hook | Medial knee + ACL | No-gi | Very High |
Ashi Garami: The Foundation
All leg lock attacks start from leg entanglements. The basic ashi garami (outside ashi) gives ankle lock access. Single leg X (inside ashi) enables heel hooks. 50/50 creates mutual heel hook opportunities.
Straight Ankle Lock Mechanics
- Blade of forearm against Achilles, not calf
- Hip extension to generate power (not arm strength)
- Leg scissors: squeeze to prevent heel hook counters
⚠️ Safety: Heel hooks create rotational force on the knee. Tap EARLY — ligament damage from heel hooks can require surgery. Train these at controlled intensity only.
Frequently Asked Questions
Are leg locks allowed in BJJ competitions?
It depends on the ruleset and belt level. IBJJF allows straight ankle locks at all levels, kneebars and toeholds at brown/black belt, and prohibits heel hooks in gi entirely. No-gi competitions generally allow more, with heel hooks at advanced levels.
How should I practice heel hooks safely?
Start with positional drilling to understand the mechanics before adding any finish pressure. Train with a trusted partner, communicate clearly, and tap early. Never crank on heel hooks — the damage happens before pain is felt.
What is the best leg lock for beginners?
The straight ankle lock from outside ashi garami is safest and most appropriate for beginners. It teaches hip mechanics, proper entanglement, and finishing technique without the high injury risk of heel hooks.