1. ZT310-R black rear wheel rim(5.0×17) 
                                                
                                             
                                            
                                         
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                                                        2. JK125-3A environmental protection tubeless tire valve spile(TR-412) 
                                                
                                             
                                            
                                         
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                                                        3. HJ100-D  tire valve cap 
                                                
                                             
                                            
                                         
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                                                        4. 160/60R17 CM638R 69S TL E4 IMARK 
                                                
                                             
                                            
                                         
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                                                        5. ZT250-R rear wheel hollow shaft Φ20×302 
                                                
                                             
                                            
                                         
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                                                        6. ZT250-R rear wheel hollow shaft nut 
                                                
                                             
                                            
                                         
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                                                        7. ZT310 rear wheel right sleeve φ20×φ28×φ38×18.5 
                                                
                                             
                                            
                                         
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                                                        8. ZT310-R rear brake plate(200×4.5) 
                                                
                                             
                                            
                                         
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                                                        9. Non-standard inner hex bolt M8×25 (environmental color) 
                                                
                                             
                                            
                                         
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                                                        10. GB276 deep groove ball bearing 6204-2RS-C3 
                                                
                                             
                                            
                                         
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                                                        11. Oil seal TC φ28×φ47×7 
                                                
                                             
                                            
                                         
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