These tires are really the only ones that are compatible with my Bike Friday rims. Good thing that they are very well made. I've taken them all over the US while I'm on the road at work. Cannot remember more than a couple of flats in 10 years of riding. Never really see them on sale. But under $40 is a reasonable price.
I've been through 4 sets of these tires over the last several years. It seems I get about 1 year of riding out of a set due to the smaller wheel size 451 your tires wear out faster than on a full-sized bike. As far as tires at this size go, there are very few choices and this is really the best all-around choice for touring, road riding, or commuting. I've found them very durable and reliable. Not too heavy either which is a plus.
This is the best tire I found for my 2 recumbents. Very fast. Has good grip in the rain. Their customer service is the best I ever experanced. I love this product. Its the only 26" and 20" inch tire I'll buy. So far for a high pressure, folding bead tire. It has the best puncture protection I found.
I buy these all the time. I found their good for 3000 miles. Unless you cut them on somthing nasty. Pinch flats are always a concern on tires this size. But these hold up great.
I use these tires on my Bike Friday folding bike for commuting and long weekend rides. The first thing I noticed when riding on these tires is how efficiently they absorb the road vibration. I was using Kenda tires before and got used to a harsh ride when the road got a little bumpy. These give a smooth ride even when inflated to 100 psi. They also have great traction. I take turns confidently even in wet weather.. If they wear well, they will be the best 20" tire I've found yet.
These are the only tires i have found that fit my Bike Friday Pocket Rocket rims. 451mm are pretty rare I guess. That being said, these tires are great and I've ridden many miles with them. They are tough tires with quality handling characteristics. Bike Friday always has them in stock so why go anywhere else?
I have used these exclusively for my recumbents for the past several years. I did have a bubble on one recently, but I took it to my bike shop and they replaced it under warranty. Other than that, I have never had issues and they seem to have decent puncture resistance and provide traction and a smooth ride.