Mammut Assist Belay Resistor

The Mammut Assist Belay Resistor is designed to give you greater control and confidence when climbing with a partner of a different weight. Ideal for situations where the climber is significantly heavier than the belayer, this lightweight device increases rope friction to help manage falls and controlled lowering more effectively. It attaches easily to the first quickdraw and uses a patented cam system that activates only when needed, ensuring smooth rope handling without fully locking the rope. This allows for soft catches and dynamic belaying, so you can maintain a natural climbing feel while benefiting from added security. Whether you are pushing your limits on new routes or managing challenging weight differences, this device helps you stay in control throughout.

Features:
Designed for belaying partners with significant weight differences
Increases rope friction for improved control and safety
Patented cam system activates only during falls or lowering
Allows smooth rope handling without fully blocking the rope
Supports dynamic belaying and soft catches
Enables controlled lowering of heavier climbers
Easy to release after activation
Attaches to the first quickdraw for simple setup
Boost Mode for faster engagement with larger weight differences
Effective even when only the first quickdraw is placed, helping reduce groundfall risk
Compatible with single ropes from 8.7 mm to 11.0 mm

Specifications:
Weight: 220 g
Suitable for: Climbing
Rope compatibility: 8.7 to 11.0 mm single ropes
Materials: 80% aluminium, 20% steel