Atum comes from Italy designer, aerodynamic profile with special fork and seatpost, PF86 bottom bracket, strong chain stay and down tube increase power transmission efficiency when padal down, thin seat stay reduces the shock from hard terrain,all internal cable  routing and Di2 compatible,ideal setup for road cycling.

Material: Toray T700

Finish: UD Glossy/Matte

Frame Weight: 940g+/-30g(54cm)

Head Tube: Tapered 1-1/8" 1-1/2" carbon

Bottom Bracket: PF86 carbon

Frame Size: 48cm/50cm/52cm/54cm/56cm/58cm

Frame Dropout: 9*100mm QR

Fork Dropout: 10*130mm QR

Brake: caliper

Tire Size: 700*25c

Warranty: 2 years

*EN Standard: 14781:2005(E)

*All internal cable routing design

*Di2 compatible,battery hidden in seatpost

*PF86 bottom bracket make frame lighter and stiffer

*Brake on design for front derailleur mounting

*Lead time within 18 business days if out of stock.