Proton Bikes

Electronic groupsets, like this Shimano Ultegra 6870 group, are one of the best technological advances to bicycles since non-wooden wheels. They're capable of ultra-precise shifts, sequential shifting, and shifting while cranking hard up a hill, and they NEV-VER need to be adjusted! Plus, they make a cool sound when shifting that will make your friends green with envy 😈. Batteries are easily recharged and last hundreds and even thousands of miles between charges. The system adds very little extra weight compared to their "mechanical" siblings. If you're ready to make the jump to electronic bliss, our carbon-frame, Di2-equipped bikes start at only $2099. Compare that price to any new Di2 bike from the big four, and you're saving at LEAST $1200-1600 over their cheapest entry into electronic shifting. That's enough savings to be able to upgrade the frame, add custom graphics, 50mm carbon wheels, and STILL be $800 to $1200 less!