Parameters: bike tire 12 1/2 X 2 1/4 MAX LOAD 40KG(88 LBS), Inflate to 40 P.S.I.(275 kPa). Practical: Block-shaped grain-shaped tmary line is uniform and fine, have a good traction, suitable for good roads and daily off-road road conditions. Suitable for mountain cross-country, outdoor riding. Ultra-durable: The tires are made of high quality rubber material and nylon cord technology, with strong grip and wear resistance. Compatible range: The size of the Bike Tire is 12 1/2 X 2 1/4, which can match 12 1/2 X 2 1/4 12.5 X 2.25, which will not affect the use effect. lf you mind that the mode is not completely symmetrical, you can choose to buy other exactly the same model in the shop. Package Includes: 2-pcs 12 1/2 X 2 1/4 bike tires, 2-pcs 12 1/2X1.75x2 1/4 SV32mm Schrader Valve bike tubes. Please check carefully for the details and size before purchase. Package Includes: 2-pcs 12 1/2 X 2 1/4 bike tires, 2-pcs 12 1/2X1.75x2 1/4 SV32mm Schrader Valve bike tubes.