Titanium Bicycle Stem 31.8 1.Material:Gr.9 titanium ... /90/100/110/120mm 4.Weight:160-190g Titanium Bicycle Stem 31.81. Material: 3Al/2.5V titanium2. Diameter ... frames (road, triathlon, track, BMX, cycloss etc. ), titanium bicycle parts (handlebar, clamp, stems, seat posts, fork, spacer, headset ... ). For more product information, pelase contact us. Titanium Bicycle Stem 31.8mm x 70/80/90/100/110/120mm(With ...