I purchased these wheels for my 2019 Kestrel MX5 which already had a nice set of Mulfut wheels on it. I've only had a limited number of rides on this wheelset so I can't really comment on the long term durability but I will say they have been great so far. If you ride fat bikes full time like I do you definitely want to shave as much rotating weight as possible while still maintaining the flotation and traction the fat tires offer. These 70 mm rims are the perfect combination in my opinion. They also help to round off the profile of the tire which makes for better cornering. I have successfully set them up tubeless using Gorilla Tape and Orange Seal. I run a Surly Nate, 3.8, 120 tpi on the front and Panaracer Fat B Nimble 4.0 on the rear. It was a noticeable difference right away once I got these rims put on; faster, and definitely more nimble. This is actually my second set of these wheels. My first set was built 15X150 and 12X170 for my 2015 Salsa Mukluk which had the stock Darryl's on it. Made an even bigger difference on that bike. The wheelsets fit perfectly on both bikes right out of the box! The only reason I haven't rated them 5 stars is because of the pinned joints. I've notice that a large amount of sealant does leak our through the joint but eventually it will seal. Again, that's using Orange Sealant, not sure about others. I would have preferred a welded rim. I highly recommend this setup over 80 mm or larger rims due to performance and lighter weight. Call out to all you year round fat bike riders out there, shed your 4.8 in tires and giant rims and try these out with some 4.0 tires setup tubeless and you'll never look back. Needless to say, I am very happy with this purchase
