Panaracer Fat B Nimble MTB Tire: Amplify Your Off-Road Adventures Review

This is a light, medium-thick tire that rolls and corners well with good traction. I haven't ridden it in muddy conditions, just dry and loose over a tough pack. It took quite a bit of sealant to install tubeless. The sidewalls seem a bit thin, after driving on the rock garden the sidewalls got wet with sealant for several days but eventually they stopped. I've only had a few rides with them and they seem to be holding up. Their width is almost 3.0 with 52 mm wide rims.

At 720 grams this tire was pretty good for the rear of my MTB. This is the largest "plus" tire I could find to fit the rear. At 18psi of riding pressure, it's 2.54 inches on my 29mm Mercury internal wheel. I've ridden it on rocky and root-covered trails and it's held up pretty well so far. It also doesn't leak sealant and holds air pretty well. I wouldn't use this tire as a true plus tire, but if you're looking for something that fits in a non-plus frame, this tire is definitely worth a look.

I have mounted these tubeless tires on 50mm rims these have been some of the toughest tubeless tires I have mounted if you don't have a heavy duty supercharger to beat the ball I to assemble would say not even try. The width is closer to 3 inches than the advertised 3.5 inches, but that's okay. It also took me a heck of a lot of time to get them to hold the air, the light sidewalls allow for a lot of slow leaks, I had to add glitter to the sealant to keep the 15psi for more than a few days…

The tire actually measures just under 3 inches on a 49mm rim but as there aren't too many plus size tires available these days I'm not complaining. excellent (needs almost no sealant) and rolls fast. I run it at around 13-14psi on my fat bike with (experimental, custom) WTB scraper rims. So far the tire has good grip and handles rough terrain with / I hit hard a couple of times and was afraid of pinching the sidewall but the tire has been ok. Wanted to try a plus size on my fat man for summer…