PIVOTRAX 90/90-21 or 80/100-21 (3.00 X 21) Heavy Duty Motorcycle Tube - 3mm Thick - TR4

Heavy duty tube for off road bike. Works great!

Great tube no issues

Just got mine put in and was absolutely impressed with these tubes chonkiness, these bad boys are beefy compared to a standard tube. Shipped quick and was not much if any more difficult than installing a standard tube. Would definitely recommend either soapy water or talcum powder to help get it in and inflate properly but honestly youd have to try to twist this beef cake of a tube while putting it in.

Good quality and the rubber is really thick! Super beefy tube. I like it! I was surprised when I pulled it out of the box. I dont think Ive every installed a tube this heavy duty before.

When I aired it up to seat the bead and then let air out I was like WTF? I did this tube swap in my living room because it was cold in the garage. Living room stank for an hour. Tube seems good but man what a stink.

The tube is thick great knowing it’s gonna be harder to puncture

Good quality and price

the only thing i did not like is that it was hard to blow up, im not sure if the valve is different from my old one

Quality of the tubes are 1st class. Shipping was so slow, that I thought the were sent by wagon.

Update 4/27/23 - these people decided to hide my original review. I hate shady businesses. I got the tube in the mail fairly quickly. Got my bike broken down and the tire off, pulled the old tube out and installed the new tube out of the box. When I get the tire all put back together and on the bike, I realize the inner valve stem was bent (Straight out of the box). Made for a pain in the ass because the parts stores are a long ways from my house and on a Sunday everything is closed. It would be nice if they could send me a replacement valve stem.