27.5"x4.5" Colossus DC/EXO/TR Bicycle Tire Drive Medical Deluxe Folding Walker This seat base is held

This seat base is held to the wheelchair frame with two metal inner strips

Excellent float over sand and snow

two for the armrest bracket adjustment knobs

Baja Motorsports: DR49-154

Drive Medical: S351069716

27.5"x4.5" Colossus DC/EXO/TR Bicycle Tire Drive Medical Deluxe Folding Walker This seat base is heldLarge well spaced lugs with an aggressive center line make the Colossus a no brainer for snow or sand. DC Dual Compound tread provides a lower rolling resistance center paired with extra grip for the corners. EXO sidewall protection which helps prevent puncture from sidewall abrasions. TR Tubeless compatible casing, sealant required. Maxxis: TB00206400