8"x2" (200x50) Caster Wheel with 2-1/2" Hub and Pneumatic Tire Drive Medical All-Terrain Knee Walker (990X) Earlier models used the Transaxle

Earlier models used the Transaxle Assembly for Pride Legend XL (SC345)

you might consider our Universal 8"x2" (200x50) Caster Wheel with 608Z Bearings

16" rear wheel assembly for the Razor iMod electric scooter

however work on the Alero

Maxxis: TB00201200

8"x2" (200x50) Caster Wheel with 2-1/2" Hub and Pneumatic Tire Drive Medical All-Terrain Knee Walker (990X) Earlier models used the TransaxleThis 8" x 2" caster wheel with 2 1 2" hub and pneumatic tire is an economical replacement for the casters on certain models of Invacare power chairs. This caster wheel assembly comes with hub, pneumatic tire, and inner tube. Please check the Compatibility tab for a full listing of known compatible models. This caster uses two 7 16 1607 RS bearings (not included).