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This is

Cycling Track

Fixed Bicycle

Performance car

Material: Carbon fiber T700 (24T/4900Mpa)

Appearance: Black matte

Weight: 350G (slightly different in length and weight)

Dimensions: 31.8-285/305/325/345/365/385MM

Rigidity (hardness): 120N/mm

Compression resistance (strength): unilateral 1800N (180KG)

Fatigue: 3HZ/140000 times