Lightweight & Durable Water Bottle Cage
Made of #2017 Super Duralumin
#2017 is much stronger than standard aluminum that enables smaller diameter to reduce weight
AB100-4.5 is made of 4.5mm diameter material and good for serious road racers
AB100-5.5 is made of 5.5mm diameter material and good for MTB riders or touring
Comes with lightweight alloy mounting M5x12 screws