... 5V). 2.According to your drawings and samples. Ti seat clamp, Ti seat clamp+nut,Ti derailleur adjustment bolt,Ti derailleur jockey wheel bolt ... /4V titanium Diameter: 31.8mm Specifications Top Quality of Titanium Bicycle Parts Titanium seatpost, titanium seatclamp, titanium headset, titanium fork, ... /90/100mm Ti seat clamp31.8/34.9mm Ti headset1 1/8" We also supply other titanium bicycle parts, such as ...