Bicycle tire lever to remove tires from wheels. I printed this with 3 shells and 60% infill and didn't have any problem removing 700c x 23 tires.
Update: Re-orientated on build platform.
Bike_Lever.SLDPRT | 757.0KB | |
Bike_Lever.STEP | 617.8KB | |
Bike_Tire_Lever.STL | 665.9KB |