EC90T800 high-strength carbon fiber + aluminum alloy double nail chuck 3K appearance road mountain bike seat tube seat post seat

Brand Name: EC90
Material: Carbon Fibre
Diameter: 27.2 - 28.6mm
Length (mm): 250 - 400mm
color: 3k
specification: 27.2/30.8/31.6*350/400
Scope of application: Mountain bike
weight: about 210-230g