Mongoose Replacement Bike Tire, 20 x 4 or 26 x 4 Inch Fat Bike Tire, Knobby, Aggressive Tread Pattern, Puncture Guard, Nylon Inserts for Extra Puncture Resistance, Replacement for Mountain Bicycles

Good tire. Mine were stamped "Mongoose" like the first photo, not "Chao Yang", but they're the same tires either way. My old ones that came with the bike (heybike mars 1.0) were Chao Yangs and the tread and everything is identical. I got over 1k miles out of my first rear tire, with a lot of very rocky trails and off road riding. When I finally got a flat I just decided to get new ones since the tread was almost gone anyway, and my sidewall was coming apart. I'm hoping to get another year and 1k or so miles out of the new tire. The front seems to last longer, it still has a ton of tread.

As advertised and quick shipping

They look like good tires for traction have not put them on yet until winter

Good quality replacement fat tire (20 x 4) for e-bike. Good treads!