The top 3 Tire Bead Breaker for Onewheel GT S-Series, GT, XR, Pint X, & Pint™ (PREORDER: Shipping by August 31st) | Onewheel Tire Bead Breaker alternatives are
The Hella Small Pump,
SureStart for Onewheel™, and
TFL Wire Brush (Grip Tape Cleaner).
If these 3 options don't work for you, we've listed more alternatives below.