12-1/2"x2-1/4" Pneumatic Mobility & Wheelchair Tire with C51 Street Tread Inner Tube:With Straight Valve Stem Tube this off-road tire size fits

this off-road tire size fits many of the Chinese made dirt bikes with 150 cc

Clutch Diameter (mm): 78mm

you might need this PSK651 electric transformer made by FBS for Pride lift chairs

and rock-solid resistance to shock and vibration

and is not for the 3-wheeler or the Spitfire Scout DLX

12-1/2"x2-1/4" Pneumatic Mobility & Wheelchair Tire with C51 Street Tread Inner Tube:With Straight Valve Stem Tube this off-road tire size fitsThe 12 1 2 x 2 1 4 pneumatic tire with C51 Street tread pattern fits many mobility scooters and power chairs. Its non marking gray rubber means that it is as useful indoors as it is outside. We offer this fine mobility and wheelchair tire with the option of combining the tire with a matching inner tube. You can select the tire alone or with an inner tube that uses a straight valve stem.