Mammut  Gym Classic 9.5 mm x 40 m Non-Dry Rope

In case folks were wondering (I was), this rope is identical to the Mammut Crag Classic in every way except length and color. The Crag Classic comes in 70m or 80 m, the Gym Classic comes in 40m. The cost per meter (for the 80m Crag Classic) is also identical. I already had a 70 m rope, so wanted the Gym Classic for leading in the gym and on the short crags where I spend much of my time. The Gym Classic, though identical to the Crag Classic, probably gets lower reviews because the buyers are beginning climbers who aren't familiar with how ropes handle in various belay devices. Check out the reviews for the Crag Classic.

Enjoyed using it while it lasted, but relatively quick ending via a suspicious issue. At a little of a year of 1x week gym use, started to notice a few softer spots. Worse though, in less than two years of maybe 1x per week use and rare falls, the sheath appears to have separated from the core right under the middle mark area (pulling two hands apart test). Since that area was never weighted during falls (in fact - w exception of maybe 5 taller gym wall visits, given mainly shorter wall gym-only use, it was only weighted at very end of lowering a climber), I wonder if it was the Mammut’s middle mark ink itself that caused it. Or maybe, always taking a climber off belay at the middle mark? Either that or just durability issues at thinner 9.5mm gym rope.

This is a very nice gym rope so far. I’m not sure what the other post ment by it being so dangerous that they can’t lower the lead climber. I had so problem I also belay with the grigi. It is a little slick at first until you break in but you can control the lowering no problem. This is a great gym rope for the price.

Have been using this rope for a few months now and love it. Feeds so smoothly, just feels great to use. Not sure what issues some may have with a grigri but I’ve never ran into problems with slippage or uncontrollable lowering. At 9.5mm though if you’re used to a 9.8 or thicker it’ll definitely feel different.

First time I found a 40 m rope that was actually cheaper than sharing a 70 m cut in half for a gym rope. Rope handles nicely both in ATC and grigri. I used mine heavily and it held up about a year before it developed some soft bulky spots.

DO NOT BUY THIS ROPE. I suppose it is possible I got a bad one, but I bought this rope in March and in 2 months (it is now May) it has almost entirely lost it's elasticity, roundness, and is extremely frayed. I ONLY USED IT IN THE GYM. Granted, I exclusively lead climb on it, and typically take about 20-30 falls per session between me and my partner, twice a week, but I still think that there is no reason for this rope to be in such rough shape after only 2 months of using it in perfect gym circumstances. In fact, the way it looks right now, makes me hesitant to whip on it at all, which is ridiculous. Oh and in case anyone is wondering: I don't keep it in the sun and it hasn't been exposed to any chemicals.

This is a fantastic gym rope. This is the first dedicated gym rope that I have purchased and I am extremely happy with this rope. Unlike other reviewers, I have not seen the issues with "bumps" in the rope, nor the issues with climbers in "free-fall" when lowering.

Good grip and easy to feed through a belay device. After months of use it still looks and feels strong. Great value for gym climbers

Great rope. Handles and clips well. Holds up great to several times a week gym use.