This inner tube is designed for 27.5" / 650b x 2.1-2.35" tires - like the Pace 500s, Pace 350s, and Level ebikes. You should always be prepared by carrying a spare tube while riding.
- Butyl rubber
- Schrader (automotive-style) valve
on the road it will easly puncture with even small torns pay a bit more for the puncturless one and save ur self a headach on changing a tire
But a hard inner tube with a guarantee which was NOT available for a 27.5 frame. Ugh!!!