The mark on the bar is glue residue from a manufacturers sticker.
ENVE M6 carbon 31.8x55
Enve SES Carbon Aero Road Bike Handlebar 40mm - 44mm
Yccyctrek carbon mtb riser handlebars 31.8mm carbon handlebar 3K Glossy mtb carbon fiber mountain bike handlebar carbon fiber scooter bars 680mm
mtb handlebars, Mountain Bike Handlebars 31.8, Carbon MTB Handlebar 700mm, 3K Glossy MTB Bars 70cm, Lightweight Black Riser Handlebars for Downhill BMX Fixie Enduro XC MTN Bike Handlebars
AlphaShield Bicycle Frame Protector Chain Stays Protection Film Sticker Frame Protection Carbon MTB BMX Paint Protection Film K099 K100, carbon black
Coventry Eagle Pro Carbon MTB Bike Frame 16" Vintage Carbon Tubes Alloy Lugs
