Custom IA's from Felt HQ
images by Andrew Strauss
Jul 24, 2014  hits 167,791

Mirinda Carfrae rode her Felt IA to first place at the 2013 Ironman World Championship in Kona.  This was a major win for Felt as it showed the world what the Felt IA was capable of, and Felt has thus decided to display Carfrae's bike in the entrance to their headquarters.
Mirinda Carfrae rode her Felt IA to first place at the 2013 Ironman World Championship in Kona. This was a major win for Felt as it showed the world what the Felt IA was capable of, and Felt has thus decided to display Carfrae's bike in the entrance to their headquarters.

While looking around Felt's headquarters during their 2014 Media Day, we noticed some interesting versions of the IA. We cover these 3 IAs in detail in this gallery.



Tags » felt,  frames,  iabike

Mirinda Carfrae 

  • Mirinda Carfrae rode her Felt IA to first place at the 2013 Ironman World Championship in Kona.  This was a major win for Felt as it showed the world what the Felt IA was capable of, and Felt has thus decided to display Carfrae's bike in the entrance to their headquarters.
  • Above Carfrae's bike is her race jersey.  It is hard to tell in this photo, but it is quite tiny.
  • Rinny rode as number 111 at the 2013 Ironman World Championship in Kona
  • Carfrae rode an ISM Adamo Attack saddle, with a single bottle cage behind it.
  • Carfrae had salt stick dispensers attached to both sides of her extensions.  She could have cleaned this up a bit by inserting the salt stick dispensers into her extensions, and routing the shift cable out of a notch on the bottom of the extensions.  Adding a notch to the extensions is easy, and getting the salt stick dispensers out of the wind would definitely reduce drag a little.
  • The cable routing on the 2015 Felt IA has been changed.  There is now a tower where the cables feed into the bike, instead of just a soft cover.
  • Carfrae used mechanical SRAM shifters.
  • This is the new version of SRAM's R2C mechanical bar end shifter.  It has slightly wider levers than the original version.
  • Carfrae used the Profile Design Aeria base bar.  Felt had to create a custom stem to allow Carfrae to do this, and at the time had decided to not release that stem to the general public.  But things have changed, and Felt says a production version will be available for purchase shortly.
  • Carfrae used a BTA bottle up front.  This is a great way to store hydration as there is minimal aero penalty, if any at all.
  • Zipp created custom decals for Carfrae's wheels.
  • Zipp created custom decals for Carfrae's wheels.  Up front, she used a Zipp Firecrest 404
  • Carfrae used the SRAM Red 22 mechanical groupset, along with a Quarq power meter.
  • Carfrae used a 55T large chainring in front.
  • Carfrae used a Quarq power meter.
  • Carfrae used the SRAM Red 22 mechanical groupset, along with a Quarq power meter.
  • Carfrae used the SRAM Red 22 mechanical groupset, along with a Quarq power meter.
  • Ironman sticker on Carfrae's top tube.
  • Felt built a custom storage box for Rinny's bike.  This box is deeper, and allows her to store additional parts or nutrition.  You can see visible striations on the side of the box from the layering process of the 3-D printing.
  • Felt built a custom storage box for Rinny's bike.  This box is deeper, and allows her to store additional spare parts or nutrition.  You can see visible striations on the side of the box from the layering process of the 3d printing.
  • Felt built a custom storage box for Rinny's bike.  This box is deeper, and allows her to store additional spare parts or nutrition.  You can see visible striations on the side of the box from the layering process of the 3d printing.  The stock box is on top, and Rinny's custom box is on the bottom.
  • Felt's professional-grade 3-D printer
  • Mirinda Carfrae rode her Felt IA to first place at the 2013 Ironman World Championship in Kona.  This was a major win for Felt as it showed the world what the Felt IA was capable of, and Felt has thus decided to display Carfrae's bike in the entrance to their headquarters.
  • The front end of the Felt IA is very clean.
  • Mirinda Carfrae rode her Felt IA to first place at the 2013 Ironman World Championship in Kona.  This was a major win for Felt as it showed the world what the Felt IA was capable of, and Felt has thus decided to display Carfrae's bike in the entrance to their headquarters.
  • Carfrae rode 23mm Continental GP 4000s.  Her back wheel was a Zipp 808 firecrest, and her front was a Zipp 404 firecrest.

Anton Petrov 

  • Tucked away in the back of Felt's headquarters was a personal project of designer engineer Anton Petrov.  Anton helped design the IA, and decided to put drop bars and a traditional stem on one for fun.  Anoton still wants to build a fairing to better hide the front brake cable and interface better with the stem and drop bar.  Don't expect to ever see this bike hit the market.
  • Tucked away in the back of Felt's headquarters was a personal project of designer engineer Anton Petrov.  Anton helped design the IA, and decided to put drop bars and a traditional stem on one for fun.  Anoton still wants to build a fairing to better hide the front brake cable and interface better with the stem and drop bar.  Don't expect to ever see this bike hit the market.
  • Tucked away in the back of Felt's headquarters was a personal project of designer engineer Anton Petrov.  Anton helped design the IA, and decided to put drop bars and a traditional stem on one for fun.  Anoton still wants to build a fairing to better hide the front brake cable and interface better with the stem and drop bar.  Don't expect to ever see this bike hit the market.
  • On top of Anton's IA project is a custom 3-D printed cover.

Dave Koesel 

  • Felt product manager Dave Koesel has his own interesting IA.  It is almost entirely nude-carbon, which gets bonus points in our book.
  • Felt product manager Dave Koesel has his own interesting IA.  It is almost entirely nude-carbon, which gets bonus points in our book.
  • Dave has a very unique drivetrain.  Up front he has a Zipp vumachrono crank, and in back he as a mechanical Dura-Ace rear derailleur with a custom jockey wheel.  Dave uses segmented housing all around, which we also love.
  • Dave has a very unique drivetrain.  Up front he has a Zipp vumachrono crank, and in back he as a mechanical Dura-Ace rear derailleur with a custom jockey wheel.  Dave uses segmented housing all around, which we also love.
  • Dave has a very unique drivetrain.  Up front he has a Zipp vumachrono crank, and in back he as a mechanical Dura-Ace rear derailleur with a custom jockey wheel.  Dave uses segmented housing all around, which we also love.
  • We love the nude carbon on Dave's bike.
  • Dave uses segmented housing throughout the bike, which we love.
  • Dave has a custom carbon fiber bridge between his extensions that looks like it might be a cannibalized seatpost from another bike.  On top of the bridge is a Garmin mount.  Dave uses Vision Metron shifters on his extensions, and Zipp levers on his base bar.
  • Dave has a custom carbon fiber bridge between his extensions that looks like it might be a cannibalized seatpost from another bike.  On top of the bridge is a Garmin mount.  Dave uses Vision Metron shifters on his extensions, and Zipp levers on his base bar.  The front end of Dave's bike is extremely clean.
  • Dave rides on a Fizik short nose saddle.
  • The bottom bracket area on the Felt IA is built up quite significantly.  It is taller than on almost every other bike.
  • The bottom bracket area on the Felt IA is built up quite significantly.  It is taller than on most bikes.
  • This is what the Felt IA's front end looks like without paint.

Felt Headquarters Misc. 

  • Felt uses Computational Fluid Dynamics (CFD) software to do the bulk of their testing, and then validates the results in the wind tunnel.  Their CFD software allows them to test components with direct wind and wind coming from various angles.  Components can be tested individually, and then tested together as a group to show any negative effects that might result as different parts affect each other.
  • A table that Felt uses to test frame stiffness.

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