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# How to Tighten and Adjust the 2nd Version XF660 Fat Tire Ebike Handlebar Stem

Articles on: [Toubleshooting](/en/category/toubleshooting-1u8znb4/)

  
  
Just open the Adjustable Handlebar Stem and Use 2 mm Allen Key Screw Driver to Tighten and Adjust Stem According to the Video Instruction.  
  
  
![](https://storage.crisp.chat/users/helpdesk/website/763195833874a800/ad33f874-1e39-4146-bd74-d2506b_1marmk9.png)  
![](https://storage.crisp.chat/users/helpdesk/website/3a07fd235a924400/8002d411-b4bb-463a-9543-0a761c_1cmw1fh.png)  
![](https://storage.crisp.chat/users/helpdesk/website/e8cebc7f85fe0000/b404d4d0-70c7-4ea2-a830-c16458_1i4bsfz.png)

Updated on: 31/12/2020