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4000 Ultegra Complete Tri Bike - 2016

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Sweet ride.

Kestrel's signature swooping lines have held court at triathlons across the world for decades. Named after the original carbon triathlon bike, the 1987 4000, the 2016 Kestrel 4000 Ultegra Complete Tri Bike delivers long-mile comfort and wind-tunnel tested speed. Kitted out with a mix of Oval Concepts, Shimano Ultegra, and Dura-Ace componentry, this bike is raring to fly out of transition.


This latest version of the 4000 is constructed out of super stiff and lightweight 800K high-modulus carbon fiber for impeccable power transfer and snappy handling. During the molding process, Kestrel utilizes polyurethane molding inside the bottom bracket, head tube, and other high-stress areas to minimize carbon wrinkles, which is said to optimize strength while minimizing weight. Each 4000 utilizes size-specific tube dimensions, shapes, and layup patterns to preserve consistent ride quality across the range of frame sizes.


To increase comfort over hours-long bike sections, the 4000 boasts a slightly longer head tube than the more stem-slammed, sprint-focused rigs, allowing for more upright and comfortable positioning options, which should lead to less fatigue when dismounting to embark on the run. Out back, the rear triangle has been reworked to increase clearance for compatibility with the shifting trends towards wider deep-dish rims, all without impacting aerodynamics. As a final touch, the vertical dropouts allow 8mm of adjustability to fine-tune your fit.


Frame Material
Kestrel Super Light 800K high modulus carbon fiber
Fork
KSL Pro SL TT Full Carbon
Fork Material
carbon fiber
Headset
1-1/8 - 1-1/4in FSA CXintegrated w/ 10mm top cover and cable guide
Shifters
Shimano Dura-Ace SL-BSR1 Bar End TT Shifters, 11-speed
Front Derailleur
Shimano Ultegra, braze-on
Rear Derailleur
Shimano Ultegra 11-speed
Crankset
52 / 36 t Oval Concepts 720
Bottom Bracket
Oval Conceptsintegrated, external bearings w/ BB30 adapter
Cassette
11 - 28 t Shimano Ultegra 11-speed
Chain
KMC X11L w/ MissingLink 11-speed
Brakeset
TRP 920 Forged Aero Center Pull, [levers] Oval Concepts 701
Brake Type
rim
Handlebar
[base bar] Oval Concepts 750 6061 Aluminum, [clip on] Oval Concepts 750 6061 Aluminum
Bar Tape
Prologo Plaintouch cork
Stem
Oval Concepts 313 6061 3D-forged Alloy, 31.8mm +/- 7°
Saddle
Prologo Zero Tri Pas, titanium rails
Seatpost
Kestrel EMS Pro w/ Ritchey clamp system
Wheelset
Oval Concepts 527
Hubs
cartridge bearing
Tires
Vittoria Zaffiro Pro Slick, folding
Tire Size
700 c x 23mm
Recommended Use
triathlon
Manufacturer Warranty
limited lifetime on frame

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