This is a single 26x4” bicycle inner tube with a Schrader valve. Compatible with all Biktrix electric bikes equipped with 26x4” fat eBike tires. Have a spare handy and ready to replace your existing inner tube as it wears or fails.

*Takeoff parts are parts which have been removed from brand-new, never ridden bikes. These parts may have some minor scuffs or fitment marks but are identical in performance and specifications to the brand-new version.