OB-R501D：Carbon Road BikeFrame， Racing Bike Frame, Aero Bike Frame

Model：OB-R501D
Headset：1-1/2"- 1-1/2"(Compatible FSA ACR/SMR)
BB:Press-fit BB86
Seat Post: offset 0mm/18mm
Tire Clearance：28mm
Weight：Standard-1050g±40g
SL-870s±40g
Feature: Aerodynamical design / full integrated,compatible Di2/Mechanical