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

Was very impressed with how thick the tube was. Ive got about a thousand miles on it now with no problems whatsoever doing a severe amount of off-road riding. I am a larger guy about 300 lb with an Enduro and its not having any trouble with weight or abuse.

I inflated mine alittle to check the tube out, one side immediately bubbled out, shouldnt it inflate consistently?

Muy Bueno

Looks like nice quality, have not used or installed, bought as a backup, when needed. Would buy again.

Definitely heavy duty. Better quality than stock.

Easy to install and fit perfectly

Seemed like a decent tube put it on my enduro. 3 days later driving 45mph and notice that I smell burning rubber, pull over and the tube is completely melted. Had the psi at spec 18 psi. No reason the tube should melt and destroy my tire and rim. Find something else this product should be banned.

It appears to be a good inner tube

If you like thick chicks youll love this 3mm inner tube. Even if youre not into thickness get this tube. Especially if you do it in the dirt. Only 4 on install cuz I have a shallow rim so it was a pain getting the valve through but it should prove worth it. Only 4 on durability cuz Ive only put a couple miles on it. Put some Shinko knobbies on an old BMW R80 ST for around the hood and going to the tavern 30 miles down a dirt/gravel road. Punctured a tubeless tire on the GS on this road so Ill see how this does. Should be fine. Front wheel & on much lighter bike. Unless catastrophic failure occurs Id recommend.

Great quality good price would buy again