12" Rear Caster Wheel for the Drive Lightweight Expedition Aluminum Transport Chair (STDS5D5510) Vintage Vespa GS Series (VS1-5/VSB) then you may just want

then you may just want to consider this 21st century system upgrade

and a lot more

then this just may be just the knob for you

Ideally suited to classic scooters

Walbro HDA high performance carburetor

12" Rear Caster Wheel for the Drive Lightweight Expedition Aluminum Transport Chair (STDS5D5510) Vintage Vespa GS Series (VS1-5/VSB) then you may just wantThis is the OEM replacement rear transport chair caster wheel for the Drive Lightweight Expedition Aluminum transport chair. Although this item is sold individually, we recommend that you replace both transport chair caster wheels at the same time. Drive Medical: STDS5D5510