Surly

Black Floyd Fat Bike Street Tire 26 x 3.8" 120tpi

The Surly Black Floyd takes your fat bike from the backwoods to downtown, thanks to its low profile fast rolling tread. These textured "bricks" on the tread profile, combined with the 3.8" volume are also well suited for packed sand and smooth dirt roads.

Surly designed the Black Floyd to be used with their 65mm wide Large Marge rim for a nice rounded profile, but the Black Floyd will fit on rims up to 100mm wide but with a more squared profile than the round balloon-like shape shown in the photos. If you are curious how the Black Floyd will measure up on your rim, the really smart people at Surly (well they have that one guy in the back) have created a tire geometry chart here. 

• Best paired with 65mm rims
• Ideal pressure range is around 20psi
• Fast rolling low profile tread
• Not recommended for tubeless applications