Subrosa pro Simone Barraco wanted a sprocket that was strong enough to handle his creative and constant abuse when riding through his beloved city of Barcelona. The Barcelona Sprocket is made from 8mm thick 7075-T6 alloy allowing the sprocket to go through hell without bending or defroming. It is also able to fit a Shadow Conspiracy Interlock Supreme Chain. The 'Flower' of Barcelona can be found all over the city so it was only fitting that Subrosa incorporated that design into the sprocket. ###section### Product Specs TYPE: Bolt On MATERIAL: Alloy WEIGHT: 158.8g (5.6oz) Colour: Matte Bandit Black, Matte Black, Concrete Grey, Teal Drip, Army Green; Size: 25T, 28T