Material: The body is made of hard anodized AL-6061 aluminum alloy. One-piece forging from top assembly end and air can Suitable

for: XC / CITY / Wheelchair

Color: Black

Specifications: (long x stroke) 100 × 9mm (3.94 inches x 0.35 inches)

weighs over 218 grams

120 × 20mm (4.72 inches x 0.79 inches) weighs over 245 grams

150x31mm (5.90x1.22 inches) weighs about 275 grams

165x41mm (6.49x1.61 inches) weighs about 289 grams

100mm: suitable for some children's bicycles

125mm: suitable for some folding bikes

150mm: suitable for some folding bikes

165mm: suitable for some soft tail mountain bikes