I first thought Shimano’s Di2 was a bit of a gimmick, after all, steel cables have always shifted pretty well haven’t they? But then I tried it…. Is it necessary? No, but it is very nice to use! And it allows for a very high level of integration. It always seemed that the control box was an afterthought, being cable-tied to the brake cables. So I made a custom stem to house it underneath. By also making an ‘upside down’ headset arrangement, such that the steerer is part of the stem and bolts into the fork crown, I was able to run the Di2 cables completely inside from the stem to the derailleurs. Then of course the battery needed to be hidden too – Icarus lights in Portland provided a custom battery (half the weight and 150% of the capacity of the stock Shimano one) that fits inside the integrated seatmast, with a custom micro-usb port on the seattube for recharging.
The frame features a Columbus aero downtube, custom butted and ovalised seattube, my signature skinny wishbone seatstays and True Temper S3 chainstays. Retro Sweet Wings steel cranks complete the steel theme, but the bike still comes in under 15lbs.