PU Mobility Scooter Wheels and Tyres 9X3
1.Flat Free Tire's Size Range
Our solid rubber tires sizes are as follows:
our sizes include 200x50, 2.80/2.50-4, 3.00-4, 4.10/3.50-4, 3.00-8 etc. 4 inch to 16 inch diameter. As for the special size, we can also custom the wheels for u.

2. Flat Free Tires Material Quality Control
A. PU Material
a. Purchasing: we purchase the chemical raw materials from the world's famous brands such as DOWS,Basf and Air Products.
b. Incoming inspection: for every lot of incoming material,we random check its quality by cup foaming.

B. Rubber tire
a.Rubber tire purchasing: we purchase the famous rubber tire brands: Cheng Shin and INNOVA.
b.Incoming inspection: physical checking including yellowing, damage and
deformation etc.
C. Accessories
a.All of our purchasing accessories (including nylon rims,aluminum rims,steel rims,axle,hub and screws etc.) can meet the standard of ISO7176.
b.Incoming spection: we need to check coating fastness,size and physical appearance; Reliability test includes tensile strength,impact strength and salt spray resistance etc.
3. The Assembly Process of Solid Tires
A. Preparation: Preparation of semi-finished tires, rims, screws, nuts, etc.; installation and adjustment of assembly machine;
B. Assembling: Assemble the tire according to the standard requirements of the filled tire assembly;
C. Finished product: The finished product needs to be tested for side impact and runout; after passing the test, it can be cleaned and packed.

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