Stewart’s TT bike

Stewart came in second in his age category at the US Masters national championship time trial last year, riding his road bike with aerobars. So he figured if he actually got a dedicated TT bike, he might have a good shot at winning this year!

I have just about finished getting my fitting studio all up and running – I now have a Calfee Sizer Cycle in house, which is perfect for TT fits as it isn’t constrained by any existing geometry. I worked with Stewart on this rig, and once we were happy with the position, we transferred the measurements back to his road bike, getting it as close as we could so that he could go test the changes on the road before I commenced building.

Stewart’s frame uses a very similar layout to Edd’s, but with a Paragon Machine Works stem clamp to allow for using a 3T aerobar. I made a custom elbow pad setup for these bars, to give the room for moving wider/narrower to suit the conditions that Stewart wanted; having the pad as a one-piece part also helps stiffen up the aerobars with the tall extensions. Plus it gave me a central location to mount the Di2 control box.

The build features TriRig brakes, a Vision aero crankset and Shimano Dura-ace Di2 for the shifting. The wheels are 60mm deep Rolf carbon, setup with Schwalbe One tubeless tires.

The photos do not do the paint justice – this is called ‘shocker yellow’, applied by Custom Powderworks, and it is almost too bright to look at in direct sunlight! Complete weight is 19.5lbs.

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