TriRadar.com’s Phil Mosley gets a quick tour of of the new SwiftCarbon Aeronaut TT/triathlon bike.
The SwiftCarbon Aeronaut (£2,250 for frame, fork, seatpost, headset and full bar system) is designed to be the perfect combination of slippery forward speed and responsive road-frame-like handling. Their UK distributor C3 Products dropped in to see us at TriRadar.com/ Triathlon Plus magazine to explain the design features and give us a quick chance to take some snaps.
An integrated fork crown and down tube is preferred over a front brake behind the fork. Testing has shown that the bigger gap needed to fit the brake between crown and down tube creates more drag than keeping the front brake at its usual spot.
As a consequence the down tube is connected lower at the head tube, angling the down tube downwards, making the virtual profile (the profile as seen by the air) longer and more aero.
This virtual profile principle also applies to the seatstays. Connecting them as low as possible on the seat tube and angling it allows to get long and narrow virtual profiles, without exceeding the UCI 3:1 ratio. The last part of the seatstay, towards the dropout, has larger profiles to increase stiffness in this area.
An integrated seatpost clamp means undisturbed flow of air over the top tube.
Cable entries are behind the stem where the air is already turbulent and the cables will not create extra drag.
The bike has a double seatpost position, for triathlon and time-trialling (UCI 5cm rule compliant).