PRfive Disc

Size Guide
Frame Size

ELITE DISC-BRAKE TRIATHLON BIKE


We designed a disc bike for real triathletes—it's aero, stable, lightweight and adjustable with only two wrenches. Starting at $4,499, the new PRfive Disc competes at the highest level, with elevated safety and braking capabilities in any condition. With increased lateral stiffness and a more aerodynamic design, you'll be able to output more power while conserving energy for the run. The PRfive Disc gives athletes the confidence they need to perform their best.

Previous winner of an Interbike Award for Triathlon Innovations of the Year, the PRfive represents all the best aero benefits of our PRsix superbike - with its design moved to a standard front end - making it not only easier for the average triathlete to mechanically work on and travel with, but also making it more affordable.

For use in a stationary trainer, a specific thru-axle will need to be ordered. The rear thru-axle is an E-thru standard M12x1.5.

Key Features


  • Easy delivery & assembly with QR's ProBox
  • SHIFT+ technology
  • 30T carbon-fiber frameset
  • Powerful disc brakes
  • QR six-position seatpost
  • QR aero storage containers
  • Leading edge absent chainstay
  • Simple wrenching and maintenance



  • DRIVETRAIN OPTIONS


    Ultegra Di2


    Ultegra Mechanical


    WHEELSET OPTIONS


    ENVE SES 7.8 DISC


    ZIPP 404 NSW DISC


    REYNOLDS AR58/62 DISC


    SHIMANO RX31 DISC


    SHIMANO ULTEGRA DI2 ELECTRONIC

    Market-leading electronic gear shifting thanks to the Di2 system and trickle-down technology from professional-level Dura-Ace groupsets. This system ensures shifting accuracy, which provides crisp and precise shifts with every push of a button. No adjustment is required once setup. Instead of mechanical cables, high-end Di2 electronic wires relay your gear selection instantly with a push of a button. Upgrading to Di2 based system places gear shift buttons on both your aero bar extensions and base bars.


    SHIMANO ULTEGRA MECHANICAL

    New ULTEGRA R8000 series is "pro-proven" as it is a direct trickle down from DURA-ACE mechanical groupset. As a triathlon bike component, the stress-free operation is one of the most important feature to lead all day riding comfort with braking and shifting. Mechanical groupsets do not feature gear selection changes to be made from the bars as the shifters are placed on the ends of the aero bar extensions. Upgrading to Di2 groupsets allows for electronic shifting buttons to be placed on base bars and aero extensions.


    ENVE SES 7.8 DISC

    Disc brakes are beginning to appear on the most aerodynamic bikes in the world and the SES 7.8 is ready. While most wheel manufacturers simply repurpose their rim brake optimized wheel models into disc brake wheels by covering brake tracks with decals and adding disc hubs and more spokes, this leaves substantial amounts of performance on the table. A revolutionary new disc brake specific, aerodynamic, carbon fiber triathlon and time trial wheelset. The SES 7.8 Disc is both aerodynamically and structurally optimized for use with disc brakes. Visit enve.com/products/ses-7-8/disc for more information.


    ZIPP 404 NSW DISC

    The NSW Tubeless Disc-brake wheels are aerodynamically optimized for wide tires to meet the performance needs of modern riders in search of low rolling resistance and high comfort. Throughout the development process our engineers carefully considered the rim-to-tire interface and how specific tire and rim widths affect aerodynamic performance. NSW technology adds to this legacy enhanced aero performance and tubeless compatibility, all with the benefits of disc brakes. Learn more at zipp.com.


    REYNOLDS AR58/62 DISC

    The Reynolds AR58/62 disc brake carbon road bike wheelset provides the ultimate aerodynamic advantage for time trials and triathlons. The rims are individually optimized for front and rear. The front is narrower to reduce frontal area and shaped to deliver stable crosswind handling. The rear is built with a 21mm rim channel to fit wider tires for reduced rolling resistance and the 61mm heights provides maximum lift to sail through the wind.


    SHIMANO RX31 DISC

    Shimano Alloy RX31 clincher disc road wheel, offering all the technology of Shimano wheels at an economical price. 24mm high profile aluminum rim for improved aero dynamics. Easy to use Centre-Lock rotor mount for use with disc brakes 24 stainless steel butted and bladed straight pull spokes with a 2-cross lacing pattern improve lateral and torsional (power transmission) rigidity.


"The bike was shipped directly to my house with no issues at all. Assembly is super easy and quick with very little bike mechanic knowledge needed. I would definitely recommend ordering directly from QR without hesitation." - Mike s.




"I love attention to detail and this bike has it. The paint is perfect and you can tell they take their time getting it right. My first ride was a long one and this bike is incredibly comfortable, light and responsive." - Jon G.


get aero with qr

Sizing & Fit

SIZING & FIT

At Quintana Roo, we develop our bikes with a wide range of adjustment so riders can find the perfect position that is both comfortable and aero.

QUINTANA ROO TRIATHLON BICYCLE SIZE CHARTS

View our size charts to see what size is best for you. After purchasing a new QR our product team will reach out to you to confirm your order and sizing information to be sure you have selected the optimum size.


If you're on the border of two sizes, the right size may depend on certain body measurements and your riding style. Feel free to contact us at any time regarding sizing questions - our product specialists are experienced with finding riders the right fit by cross-referencing your information with our QR Rider Fit database. 


If you're not transferring measurements from a similar triathlon specific bike, to get completely "dialed in" for maximum performance, we recommend you see a reputable professional bike fitter that can fit you to your new Quintana Roo.

PRSERIES SIZE CHART

PRsix, PRfive, & PRthree models. 


FIT SERIES SIZE CHART

Kilo, Dulce, and Lucero models.

FIND MY PRSERIES BIKE

PRseries bikes are developed by triathletes for triathletes. Find the right PRseries bike for you.

JOIN THE QR FAMILY