Trek Speed Concept 2.5 WSD - Women's - 2011

Trek's Speed Concept 2.5 WSD is your secret weapon in the battle against time. The aerodynamic frameset and components are works of genius that result in free speed and personal records. Trek uses Kammtail shapes in the frame that make it f ...(Read More)

Trek Speed Concept 2.5 WSD - Women's
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Trek's Speed Concept 2.5 WSD is your secret weapon in the battle against time. The aerodynamic frameset and components are works of genius that result in free speed and personal records. Trek uses Kammtail shapes in the frame that make it faster even in cross winds. And, this wind-cheating women's-specific bicycle is super adjustable so that you can find your most efficient position. It's also equipped with SRAM's fine Apex components for super-smooth shifting and top-notch reliability, plus slippery Bontrager wheels and a fast front end ready to beat the clock.

Three years in the making, Trek's Speed Concept takes revolutionary design paired with a groundbreaking aero shape to make the cleanest integration of brakes, cables, and electronics ever seen on a bicycle. It's the fastest way to the finish. (Click images to enlarge.)

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Cross winds greatly affect the aerodynamics of a bike. Most TT bikes have low drag when the wind is straight on, but in the real world, it's almost always a cross wind. The Speed Concept's Kammtail shape maintains its full aero benefits at any yaw angle. The result? Your bike is faster in any situation. Cables contribute a massive amount of drag, and routing them internally through the frame eliminates that drag and maximizes speed. The minimal frontal surface area of Speed Concept, combined with its svelte shape, makes the bike slice through the wind effortlessly, so more of the power you apply to the pedals translates directly into speed.
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Even the quick-release skewers on the Speed Concept increase its speed. Trek integrates them into the shape of the bike for faster aerodynamics. Computer sensors create unwanted dirty air—but not if you build them seamlessly right into the frame. Speed Concept is the first TT bike to integrate electronics into its aerodynamic shape. Out of sight, out of the wind.

The geometry chart for Trek's Speed Concept.
This manufacturer's chart helps you check the fit (may show unavailable, and/or not all sizes). All measurements in centimeters.

Specs

Frame Trek Alpha Red aluminum
Fork Bontrager Speed Concept Race Lite E2 Tri carbon
Rims/Wheels Bontrager SSR
Hubs See Rims/Wheels
Spokes See Rims/Wheels
Tires Bontrager R1, 700 x 23c
Crankset SRAM Apex
Chainrings 50/34
Front Derailleur SRAM Apex
Rear Derailleur SRAM Apex
Rear Cogs SRAM PG-1050, 10-speed: 11-28
Shifters SRAM 500 TT
Handlebars Bontrager Race Bullhorn w/Race Lite clip-ons
Tape/Grips Bontrager Gel
Stem Bontrager Race Lite
Brake Levers Bontrager Race Lite aero
Brakes Aluminum dual-pivot
Saddle Vision AeroMax Tri
Seatpost Bontrager Speed Concept Race X Lite, carbon