This is simply because this E-Bike has a battery within the stem and will not accept long bottle holder bolts.
AirTag Bike Saddle Mount | Hidden Tracker Holder | Anti-Theft Seat GPS Bracket
AirTag Bike Fork Mount | Hidden Anti-Theft Tracker Holder | MTB 33mm-38mm
ReFind Airtag Bike Bell. Hidden Bike Airtag holder for Apple Airtag and P09
ReFind Airtag Bike Reflector. Hidden Bike Airtag holder for Apple Airtag and P09
APPLE AIRTAG BIKE SECURITY THEFT TRACKER UNDER SEAT / SADDLE MOUNT CASE HOLDER
