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Fuji D-6 4.0

Fuji D-6 4.0
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Hop on Fuji's D-6 4.0, settle into your aero tuck, hit the gas and you'll be blown away by how fast you blast down the road and punch through the wind. This trick sled boasts every aerodynamic trick for free speed, the stiffness and efficiency for awesome power transfer and lets you dial in the ultimate aero riding position. The D-6's massive bottom bracket area, integrated seatmast and the beefy rear end maximize your podium potential. Plus, this remarkable frame weighs 1,420 grams, making it among the lightest out there. It also boasts hidden brakes and internal cable routing. This pro-level ride is ready for action, too, with a fast blend of Shimano's 105 and Tiagra components, aero Alex wheels, and a fully adjustable Profile front end for even more MPH.


Not only does Fuji place the front brake behind the fork to shield it from the wind, they use a unique internally routed cable that runs down through the steerer. The result is a super-clean front end that is nearly invisible to headwinds.

The integrated aero seat mast uses an external seatpost to increase strength and stiffness. The clever seat clamp allows for independent fore/aft and tilt adjustments while maintaining your preferred riding position. The clamp also provides a huge range of effective seat tube angles from 74 to 80 degrees.

By placing the rear brake into an integrated cavity, it not only keeps the brake out of the wind, it increases rear-end stiffness for better efficiency. Plus, the brake remains accessible for tuning

The massive bottom bracket junction maximizes power transfer without sacrificing vertical compliance. This means you don't waste precious energy fighting and recovering from every little bump in the road.


Frame Fuji C4 carbon w/internal cable routing
Fork Fuji carbon-monocoque w/internal cable routing
Rims/Wheels Alex Race 32
Hubs Formula
Spokes Stainless-steel
Tires Hutchinson Nitro, 700 x 23c
Crankset FSA Vero
Chainrings 50/34
Front Derailleur Shimano Tiagra
Rear Derailleur Shimano 105
Rear Cogs Shimano Tiagra, 10-speed: 11-25
Shifters Microshift bar-end
Handlebars Profile Airwing w/Legacy extensions
Tape/Grips Fuji custom suede
Stem Oval 300
Brake Levers Oval 700
Brakes Tektro T-925 Tri
Saddle Oval 300
Seatpost Fuji Carbon Aero, multi-position

* Subject to change without notice.

Part Numbers

Option UPC MPN
48cm 785749830537 1021455848
50cm 785749830544 1021455850
52cm 785749857671 1021455852
54cm 785749830551 1021455854
56cm 785749830568 1021455856
58cm 785749830575 1021455858
60cm 785749830582 1021455860