Klickfix Handlebar Adapter for Stem with lockHandlebar Adapter for stem with lock on vertical stems 22,2 25,4mm This new adapter completes the KLICKfix handlebar adapter system. On many city bikes, this adapter can be mounted right on the stem ( 22,2 25,4mm), thus allowing the load to sit in a lower position on the bike and leaving more space for other accessories on the handlebar. Material: glass fibre reinforced polyamide. With lockable red button. The bracket can also be turned upside down.