1. Understanding of YS (Yao Shyan) wheels serial code:

Symbol illustrated:

YS = Yao Shyan 

E =  EVA Tire = EthyleneVinyAcetate Tire
R = Rubber Air Tire
H = EVA Hollow Tire 
PU = PU Tire = PolyUrethane Tire
RS = Rubber Skin + inner EVA Tire

QR = Quick Release = means including { Bushing }

For example:

YS - series number - inch " - side(s) - tire type

YS -   39 -  8" - 1 - H                            ( YS -   39 series -   8 inch - 1 side - Hollow Tire)  
YS - 309 - 10" - 2 - E                            ( YS - 309 series - 10 inch - 2 sides - EVA Tire ) 
YS - 309 - 12" - 1 - R                            ( YS - 309 series - 12 inch - 1 side - Rubber Tire )  
YS - 309 - 12" - 1 - R - QR                    ( YS - 309 series - 12 inch - 1 side - Rubber Tire - Quick Release )  
YS - 368 - 7" - 2 - PU-1, 244g               (YS - 368 series - 7 inch - 2 sides- PU-1 tire pattern , 244g )
YS - 368 - 9.5" - 1- RS-1, 508g             (YS - 368 series - 9.5 inch - 1 side - RS-1 tire pattern, 508g)
YS - 388 - 11.5"- 1- RS-2, 673g            (YS - 388 series - 11.5 inch -1 side - RS-2 tire pattern, 673g)
YS - 398 - 12" -2 - R , (735g+2*20g)    (YS -398 series - 12 inch - 2 sides - Rubber tire, 735g + 2 bearings*20g)  

2. Knowing of Present Available: 

After clicking on the photos of the wheel, you will see Present Available of this series under the big picture. If you can not find the right size of the series that you prefer in our Present Available list, feel free to contact us, it would be our pleasure to help you. YS likes to develop the customize sized wheels of your will if you demand a large quantity.

3. Easlier to place order from YS:

If you want 10000 wheels of  YS-309-12"-1-R-QR, please remarks Hole diameter and color of Rim and Tire, and aslo color of Cap or Bushing {Quick Release}.

In your order form: 10000 pieces of YS-309-12"-1-R-QR, with Hole diameter (12.7mm), Rim ( Printing), Tire (Black), Bushing (Black)
  



4. Smarter and faster way to find the right wheel:

If you have the serial number of the YS wheel you want to look at, type it on the Product Search bar, which is located on top right hand side of the page, click on the search icon, then you can see the particular wheel you like immediately.

For example: type ( YS-305 ) on our product search bar and click on the search icon, then all kinds of YS-305 series will show right away.