1,aluminum pipe clamp with 4 bolt 2,color to order 3,wide application ... ,Diameter:31.8 1,Model:S-242,Description:aluminum pipe clamp with 4 bolt3,Specification:28.6MMWe are a professional manufacturer ... then 10 years.Usually,we can supply you brake lever,V-brake,caliper brake,pedal,bottle cage,quick release,kickstand,seat ... ,peg,etc.I am waiting your inquiry!Robin aluminum pipe clamp with 4 bolt