Review on Motorcycle Breather Off Road Motorcycle Black All by Michael Adams

Wouldn't use these on an off road bike as gas can leak onto your nuts. These are nice pipe ends, but 8 out of 10 are vented both ways to allow fluid to escape and the other 2 I either had to drill to work either way or throw them away. You guess which one. Still got 3 stars because they were good enough to let air into the gas tanks, my GoPed and the generator.