26"x4.0" Minion FBF DC/EXO/TR Bicycle Tire Drive Medical Clever-Lite Adult Walker with 5 Casters (10230) and a 5-pin connector

and a 5-pin connector

The knobbier tread pattern makes this great wheel assembly as good on the asphalt as it is in the shopping mall

This 97cc horizontal shaft engine has a mounting hole pattern of 104 mm x 61 mm

This Front Wheel is for the Drive Medical Adjustable Height Rollator with 6" Casters (RTL10261) with a 5W Prefix

then this is a great way to save some money

26"x4.0" Minion FBF DC/EXO/TR Bicycle Tire Drive Medical Clever-Lite Adult Walker with 5 Casters (10230) and a 5-pin connectorFront specific tire with rectangular knobs for superb cornering grip and straight line tracking. Dual compound, tubeless ready casing with bead to bead EXO protection. DC Dual Compound tread provides a lower rolling resistance center paired with extra grip for the corners. EXO equipped models feature Maxxis' EXO sidewall protection which help prevent puncture from sidewall abrasions. TR Tubeless Ready sealant required. Maxxis: TB72655000