Where can I find the serial number on my bike? Updated September 24, 2021 16:35 It's on a silver-colored sticker on the rear dropouts, under the barcode. Related articles Do ebikes work in cold weather, rain, or on hills? Bike Security: Protecting Against Loss or Theft What is the difference between Class 2 and Class 3 ebikes? Are these bikes legal in my state? I've recently had a flat tire, is it covered under warranty? Comments 2 comments Sort by Date Votes Jim July 20, 2021 00:56 Serial number not there 0 Matt Garcia August 31, 2021 13:35 Edited I found it on the post part of the frame near the sprocket. 0 Please sign in to leave a comment.