12" Pneumatic Drive Wheel Assembly for the Merits Pioneer 9 (S331) and Pioneer 10 (S341) Mobility Scooter and the Merits Atlantis 1 (P710), Atlantis 2 (P720), and Super Vision (P327) Power Chairs (32600423) Roketa MC-07-50 (Bahama 50) PCB is an acronym for

PCB is an acronym for Printed Circuit Board

and this is the upgrade will almost give you a new electric bike

30" Heavy Duty Thorn Resistant Bicycle Inner Tube with 32mm Presta Valve

Yuasa YTX16 Battery

This 22x1-3/8 pneumatic tire with C63 street tread is used on Everest & Jennings wheelchair models and many others

12" Pneumatic Drive Wheel Assembly for the Merits Pioneer 9 (S331) and Pioneer 10 (S341) Mobility Scooter and the Merits Atlantis 1 (P710), Atlantis 2 (P720), and Super Vision (P327) Power Chairs (32600423) Roketa MC-07-50 (Bahama 50) PCB is an acronym forThis 12" pneumatic drive wheel assembly for the Merits Pioneer 9 (S331) and Pioneer 10 (S341) mobility scooter, and the Merits Atlantis (P710), Atlantis 2 (P720), and Super Vision (P327) power chairs comes complete with a 4. 00 5 tire, a tube, and a black and aluminum rim. This is a big drive wheel for a big power chair. Merits: 32600423