Please compare with the original tire, as the 8 1/2 x 2 tire is available with three different inner diameters Please compare your old or before buying defective spare part with our description and our pictures, If you have any questions, we will of course be happy to provide you with our opening hours. Tire 8 1/2 x 2 (50/75-6.1 inside diameter. 155mm e-scooter electric scooter HMParts Tire - 8 1/2 x 2 (115mm) Stroller Electric Wheelchair HMParts FAST SHIP. Tire 8 1/2 x 2 (50-134) inner diameter 135 mm HMParts lightning shipping HMParts E-scooter bicycle children's quad midi bike 3-pin charger 36V 1.8A LT01 Controller control unit for children ATV with reverse gear 36V 800W type 2 HMParts Controller control unit 36V 800W type 1 for children ATV with reverse gear - HMParts Control unit con.