Shimano 2 pot hydraulic Brake Upgrade To Shimano 4 pot

Hi guys, Xavier here. How are you all out there? I hope everyone is healthy & stays safe always. Today I want to replace my Shimano BL-M396 & BR-MT500 Hydraulic Brake (2 pot) with Shimano BL-MT401 & BR-MT420 Hydraulic Brake (4 Pot) I hope you guys enjoy and like it. If there's any mistake, please forgive & enlighten me. Please comment below if there’s any mistake that I have made. Don’t forget to comment so that I can improve my channel & also, remember to hit the like button, share, subscribe & turn on the notification (Bell). Most importantly is, always remembered to ride safe & safety 1st. My Another Channel: Xavier Pui Swee San - http://www.youtube.com/c/XavierPuiSwe... Simple home Cook - https://www.youtube.com/channel/UC0_E... BiliBili - https://www.bilibili.tv/ms/space/1330894207?q= Facebook Page - https://www.facebook.com/xavierpuisan Instagram – xavierpui1981