Description
Description: Aluminum alloy material, high strength, sturdy and durable, higher oxidation resistance, anti corrosion and not easy to rust. Stiffness increases while reducing the weight, making it easier to ride. Bottom Bracket must be threaded external hanging type, the bottom bracket width 68/73 can be installed. Press fit and embedded bottom brackets cannot be used. Specification: Material: CNC 7075 Aluminum Alloy Size: 68.3mm*67.9mm*/2.69inch*2.67inchx Inner diameter:35.4mm/1.39inch Thickness: 4mm Package Includes: 1 Piece Chain Guide Adapter