Maxim Chalkline 10.8mm Climbing Rope Review

The Chalkline is at the upper end (9.7 kN) for impact force compared to most single ropes, though still within CE standards. The Chalkline comes in 10.2 and 10.8mm. I tested the 10.8. After a few seasons of carrying ultra-skinny (down to 8.9mm) cords I was immediately struck by the rope’s hefty 77.8 grams per meter—I’d pick a lighter cord for backcountry cragging, or for rope-stretching pitches where weight is a factor. As a super burly, durable “everyman’s” rope, though, the Chalkline is hard to beat, literally.