North America 423-888-0358 International 1-877-353-2314

PRsix Neutron

The PR Six Series

2018
Superbike

The PR Series is our premier line of high performance triathlon bikes. From the professional to the elite athlete to those with a goal to finish, the PR series is the best choice to help athletes achieve their personal record (PR).

Overview

We measure variables that are critical to bike development in the SuperBike category. It's more than just a wind-tunnel test. It's comprehending the data and utilizing our knowledge to create a bike that pushes the boundaries of what is possible.

SHIFT+ Technology: QR’s unique “shift” aero design was first introduced in the CD0.1 and further refined in our PR series. Shift + offsets the Static Aero Downtube towards the drive side of the bike thus redirecting the concentrated airflow away from the ‘dirty’ (drive side) to the ‘clean’ side (non-drive side) of the bike. This minimizes drag and makes the drivetrain virtually invisible to the wind. The result is a bike that is more stable and more aerodynamic across a wider range of yaw angles. Athletes find that Shift + helps stabilize the bike in cross winds which saves them energy on the bike to use on the run.

Boat Tail Airfoil: Used in ballistics technology and the automobile industry, Boat Tail Airfoils are more stable and more aerodynamic than Kamm Tail airfoils while still maintaining effectiveness over a wider range of yaw angles than traditional airfoil shapes. The boat tail shape reduces swirling air pockets off the back of each aero tube thus reducing drag and stabilizing the bike.

Static Downtube Orientation: Wind tunnel testing has shown that dropping the downtube as close as possible to the trailing edge of the front wheel improves aerodynamics. With this in mind, we’ve specifically calculated the downtube drop ratio for each size of the PRsix to make sure that every frame falls within the tightest standard. In other words, every size of the PRsix is as aero as we could possibly make it.

Leading Edge Absent Chainstay: (PRsix & PRfive only)Dramatically increased size and aero profile of the non-drive chainstay to minimize frame flex and maximizes power output while making the bike more aero and stable. This gives athletes the benefit of a sail effect in cross winds.

Aerodynamic Storage Systems: QR’s size specific QBox and Top Tube Storage systems are designed to further enhance the Boat Tail Airfoil increasing aerodynamics and stability while providing a quick and convenient location for storage.

*components specifications subject to change

Features

  • NEW Integrated Stem & Top Tube Storage System
  • QBox increases aerodynamics with enhanced boat tail technology
  • Super light frame featuring 40T hybrid composite technology
  • SHIFT + Technology
  • Boat tail cross sections increase aero efficiency, reduce frame flex and provide greater stability
  • Leading edge absent/invisible chainstay increases aero efficiency and drivetrain stiffness
  • Static Downtube Orientation for maximum aerodynamic advantage across all sizes (size specific design)
  • Integrated aero fork system mated to QR’s simple 12-position stem
  • Multi system brake mount allows compatibility with most brakes
  • Easy Assembly: 2 allen wrench sizes
  • 6 position seatpost design

Bike Specifications

  Ultegra Di2 Race Ultegra Race Ultegra
Fork
QR Integrated SHIFT+ QR Integrated SHIFT+ QR Integrated SHIFT+
Headset
FSA Orbit IS-2 FSA Orbit IS-2 FSA Orbit IS-2
Stem
QR 12-position QR 12-position QR 12-position
Handlebar
Profile Design Aeria Carbon Profile Design Aeria Carbon Profile Design Aeria Carbon
Extensions
Profile Design T4+ Carbon Profile Design T4+ Carbon Profile Design T4+ Carbon
Seat Post
QR Aero Carbon QR Aero Carbon QR Aero Carbon
Saddle
ISM PN 2.1 ISM PN 2.1 ISM PN 2.1
Shifters
Shimano Ultegra Di2 Shimano Ultegra Shimano Ultegra
Front Derailleur
Shimano Ultegra Di2 Shimano Ultegra Shimano Ultegra
Rear Derailleur
Shimano Ultegra Di2 Shimano Ultegra Shimano Ultegra
Brakes
Shimano Ultegra Shimano Ultegra Shimano Ultegra
Crankset
FSA SLK Light 53/39 FSA SL-K Light 52-36 FSA SL-K Light 52-36
Cassette
Shimano Ultegra Shimano Ultegra Shimano Ultegra
Chain
Shimano Ultegra Shimano Ultegra Shimano Ultegra
Bottom Bracket
FSA PF30 FSA PF30 FSA PF30
Tires
Continental Continental Continental
Wheels
Reynolds Strike SLG Reynolds Strike SLG Shimano RS-11
QBox
QBox QBox QBox
Integrated Top Tube Storage System
Integrated Top Tube Storage System Integrated Top Tube Storage System Integrated Top Tube Storage System

Geometry

  48 50 52 54 56
Seat Tube (C-T)
48 50 52 54 56
Top Tube Length (CM)
47 49 51 53 54.5
Head Tube Length (CM)
7.4 9.5 11.5 14.2 15.8
Head Tube Angle
71 72 72 72 72
Seat Tube Angle
77/83˚ 77/83˚ 77/83˚ 77/83˚ 77/83˚
Chainstay Length
39.5 39.5 39.5 39.5 39.5
Wheelbase (CM)
95.7 96.8 99.5 101.7 103.1
Standover Height
73 75 77 79 81.5
Front Center (CM)
57.4 58.4 61 63.3 64.7
BB Drop (CM)
7.35 7.35 7.35 7.35 7.357
Fork Rake (CM)
4.8 4.8 4.8 4.8 4.8
Wheelsize
700 700 700 700 700
Stack
48 50 52 54 56
Reach
38 39 41 42.5 43.5