Rinny’s Kona Ride
As a longtime SRAM athlete, three-time Kona champ Mirinda “Rinny” Carfrae knows our gear as well as she knows the Queen K. Her bike setup for Saturday’s Ironman World Championships in Hawaii is the result of years of product testing and preferences gleaned from countless hours of racing and training.
SRAM Road Sports Marketing Manager Dan Stefiuk, who looks after Carfare’s bikes, takes us through her SRAM, Zipp, and Quarq eqiupped Felt IA Disc:
Mirinda is a full-package athlete riding SRAM, Zipp and Quarq. Up front she runs a Zipp cockpit, starting with the Vuka Aero integrated base bar. She chose the low mount option for the elbow pads and her Zipp Vuka Carbon Evo 110 extensions. The Evo 110 extensions place her hands in a higher, more aerodynamic position allowing her to drop her shoulders and keep her wrists at a comfortable angle. For shifting, she places the Blip remote shifters on the bottom (6 o’clock position) of her basebar handles just behind her brake levers, and uses SRAM eTap Clic™ shift buttons at the end of her extensions.
The SRAM Aero HRD disc brake system is a new addition to Rinny’s SRAM RED eTap Aero groupset. She started riding disc brakes on her race-bike about three months ago. Mirinda, a smaller rider and a bit skeptical about the need for disc brakes for triathlon at first, is now praising the benefits of better stopping power and speed modulation without the twitchiness she sometimes experiences when braking on rim brake TT/tri bikes. She also noted the improved power transfer that comes from replacing quick releases with thru axles.
For gearing, Mirinda changes chainrings based on the course profile, switching between a 53/39t and a 55/42t setup. For Kona, she’ll ride a 55/42t paired with an 11-28t cassette. She’s a smaller rider not known for “grinding” gears, instead, the goal here is to keep her cadence (and heartrate) low while cycling on the Queen K, keeping her as fresh as possible for the run, which is where she typically wins races. Her Quarq power meter also helps her manage her output according to her race plan, and transition well into the run for the marathon.
Mirinda typically rides the 45mm deep Zipp 302 Carbon Clinchers while training around Boulder, Colo. For Kona, she goes for the very aero setup of the Zipp 454 NSW Carbon Clincher Disc-brake front paired with a deeper 858 NSW Carbon Clincher Disc-brake rear. Even though the 858 NSW is known for its crosswind stability, Mirinda--with a smaller stature--gains confidence by running the 454 NSW.