This low-cost lever is my favorite. I've been using it since 1991 because it makes a single lever change possible, even with tight tires.
The lip for the tirerim side has the perfect geometry to get into the tire without forcing anything, reducing the worry of wrecking tirerim when changing a flat on the road.
It'll get your tires off, but durability is definitely an issue. If you have a stubborn tire, the cheap plastic will flex..I've tried Park Tool's levers and they're definitely more durable than the Kool Stop's.
True measured by me weight is 41 g 32 g levers 9 g case not 26 g as listed.
Case is very nice, levers don't break apart in bike bag.
Levers are solid not flimsy, don't flex significantly under stress.
