CMI Ultrascender

The CMI Ultrascenders are the obvious choice for rugged use and exceptional strength. These are the strongest ascenders on the market. The large model features a molded handgrip for extra comfort, while both share simple one-handed operation on and off the rope. Combining extruded and machined bodies with stainless steel parts produces a bomber ascender for any usage. Sold in pairs.

CMI® Small Ultrascenders have a new ergonomically designed safety mechanism that is integrated into the handle channel for maximum ease of use in those long "over the lip" stretches. There's a new thumb notch in the cam top to simplify full cam retraction, and a new molded handgrip for maximum comfort on those long pulls.

The cams are 4140 chrome-moly steel. This high-strength material allows a new, patented, non-metallic finish to be applied to the cams. The new finish gives the cams the same corrosion resistance as stainless steel yet increases both the tensile and yield strength. Additionally, the new finish is harder than the best knife blades or files, which allows CMI to guarantee our cams against wear out for life. 

• Large Weight: 270 grams
• Large Length: 18.7 x 7.6 cm
• Large Breaking Strength: 5,000+ lbs
• Small Weight: 180 grams
• Small Length: 13 x 7.6 cm
• Small Breaking Strength: 4,000+ lbs