The Zefal Alu Plast 124 bottle cage is constructed with a classic design, now available in a wide range of colour to match your livery. The Alu Plast is built from 5mm 6061 T3 aluminium alloy with a technopolymer beam for the best balance of weight, durability and strength. At just 40g, the Zefal cage is a lightweight addition to your bike frame. Key Features: Material: Technopolymer beam / Aluminium cage (6101 T3)Colors: Black / Red / Blue / Yellow / Orange / White / SilverWeight: 40gRod Ø: 5 mm