Grivel's most technical crampon is now at its fourth evolution, integrating their active anti-balling plate and simplifying all adjustments: just one screw to adjust the length, one screw to substitute a point, and one screw to position the spur. Rigid crampon with anatomic curve. the asymmetrical forged mono-point is extremely easy to substitute with just one screw, integrated with a half point external lateral support point. A structure in rigid plastic acts as a spacer for the screws and as support for the supple rubber anti-balling device. The Rambo 4 also features four retention points for descent and a oveable spur.
Crampomatic binding is a well known system which relies on a nylon speed lever in the rear and a stainless steel front bale to hold the boot. Quick to put on, these bindings are perfect for plastic mountaineering boots that have a rigid sole and substantial heel and toe welts. The stainless steel safety strap, which was invented by Grivel, is permanently mounted on the front bale and prevents total loss of the crampon should it be forced off the boot.