VeloTubes Fat Bike Inner Tubes 26 x 4.0 Threaded 33mm Presta (French) Valve, Fat Bicycle Tubes, Pack of 2 or 4

Good tube tubes at a Great Price, Very happy they came with removal cores, I will be adding some stan's to them. Reason, I tried and failed 3 times to convert mulefut 80 rim to tubless=waste of time and money. The fit great on 100mm wide rims with surly 4.8 tires, and Vee Bulldozers 4.7 on the 80mm mulefut. Will buy again as needed!

Desperately wanted to use a verse from Fat Bottom Girls of the iconic Queen song, but couldn't figure it out. Bought these to fit our specialized fat boy bikes and they work well.

Good heavy tubes with Presta valves. The valves have a removable core, so you can add Slime to protect the tubes.

I found the tube to be a great replacement for my Specialized FatBoy 4.6'' tires. These tubes are definitely heavier than the OEM Specialized tubes that the bike came with (I did not weigh them -- the difference is apparent in your hand) but this also seemed to translate into greater flat avoidance. 14 months later with nearly-exclusive off-road use and zero flats so far.

nice

Seem like good tubes, working fine until went to air down on the trail. The valve core came out when removing the cap so now I'm walking 8 miles home.. yay.

got this for my ebike that has a motor in each wheel and seems like the torque from the motors was enough to get my tire to spin slightly on the rim causing my rubber valve stem to rip at the base. these were able to bolt on to the rim at the valve stem and I dont have the problem of my tube spinning in the rim

Good tubes at a good price. They are a bit thicker and heavier than I expected (& compared to the tubes being replaced) which can be a positive for flat protection.