2009 Cervelo R3 Dura-Ace 7900

Product Description

Best bike we’ve ever ridden” – 220 Magazine

Two wins at Paris-Roubaix, one second. That’s the R3’s unparalleled record in the world’s toughest bike race. But to the pro team mechanics, more incredible than the victories is the fact there has never been any mechanical issue with an R3, even though it is the lightest frame to be used in that race. In a race where every manufacturer lies awake worrying the night before, that’s simply unheard of. Yet the R3 is much more than just a Paris-Roubaix frame.

Carlos Sastre (not exactly your prototypical Paris-Roubaix rider) uses it for most of the season as well. There is perhaps no better proof of the R3’s extraordinary performance than the speed with which several other bike companies try to copy its looks. But of course, the R3’s performance is more than paint-deep, and its superiority is safely stowed away in all its small details and proprietary lay-up designs.

Highlights

Squoval downtube & chainstays - Optimized for the highest possible stiffness-to-weight ratio (STW).

Multi-shape toptube - Squoval at both ends and oval in the middle to counter the complex loads.

Oversized bottom bracket area – Large diameter and smooth, optimized shapes increase bottom bracket stiffness for excellent power transfer from pedal to rear wheel.

Lay-up optimization – Approximately 300 pieces of carbon, each optimized in shape, fiber type and fiber direction.

Ultra thin seatstays - With the Squoval chainstays resisting forces so effectively, the seatstays can be very minimalist. By making them wide but thin, they resist rear triangle torsion while providing vertical compliance. In other words, the rear triangle is stiff where it needs to be for efficient power transfer from pedal to rear wheel, but compliant where it can add rear wheel tracking and comfort. Thus the small seatstays save weight, without any compromise.

Squoval™

The dominant forces on the downtube and chainstays are lateral bending forces. The best way to resist those is with a lot of material far away from the center plane. Square tubes do this best, but can easily buckle. A slightly ovalized square creates the best of both worlds, which explains why Cervélo’s Squoval shaped frames win stiffness and lightweight tests everywhere.

The front and rear of the toptube also use the Squoval shape to counteract lateral bending, but it transitions to oval in the center to counteract the torsional loading in that section.

Smartwall® for Carbon

Upon hearing Smartwall, most people immediately think of Cervélo’s method to obtain excellent lateral stiffness in an TrueAero tube. But the Smartwall principle is universally applicable, not just on aero tubing. After the tube shapes are optimized, the lay-up allows us to further refine the character of the bike. In fact, Squoval tubes are very well suited for the Smartwall application as they have two sides that are very far removed from the central plane – i.e. adding even a small amount of extra material there increases the lateral stiffness significantly. To properly distribute the loads from the Smartwall section into the rest of the tubes, the additional plies are feathered.

Geometry

No custom Cervélo is needed even for the most demanding pros, that’s our conclusion after supporting hundreds of the world’s best athletes. The reason we don’t need customs where other bike companies do lies in our unique reach-based geometry. For an exhaustive explanation on why 6 Cervélo sizes fit more people than 12 “normal” sizes, check out our geometry tech presentation.

73 Degree Seattube Angle
Size	Wheel Size	Head Tube Angle	BB Drop	Top Tube	Head Tube Length	Front Center	Rear Center	Stand Over Height	Stack	Reach
48	700c	72.5°	68	515	100	547	399	709	502	361
51	700c	73°	68	530	120	558	399	729	522	370
54	700c	73°	68	545	140	573	399	746	541	380
56	700c	73°	68	565	160	593	399	764	560	394
58	700c	73°	68	580	180	608	399	781	580	403
61	700c	73°	68	592	200	620	399	800	599	409
Note 1:		The standover height is measured to the toptube directly above the bottom bracket.
Note 2:		The above headtube lengths are for integrated headsets. To compare to non-integrated headtubes, deduct 20mm from the above lengths to adjust for the stack height needed for non-integrated headsets.

Components

The R3 is available as a frameset or with the following components:

Part	DuraAce 7900	SRAM Force
Fork	3T Funda Pro	3T Funda Pro
Seatpost	3T Doric Team	3T Doric Team
Shift/Brake Levers	Shimano DuraAce 7900 STI	SRAM Force
Front Derailleur	Shimano DuraAce 7900	SRAM Force
Rear Derailleur	Shimano DuraAce 7900	SRAM Force
Cassette	Shimano Ultegra 12-25	SRAM 1070
Chain	Shimano Ultegra	SRAM 1070
Brake Calipers	Shimano DuraAce 7900	SRAM Force
Crankset	Shimano DuraAce 7900	SRAM Force
Bottom Bracket	Shimano DuraAce 7900	SRAM GXP Team
Headset	Cane Creek	Cane Creek
Stem	3T ARX Team	3T ARX Team
Handlebars	3T Ergonova Team	3T Ergonova Team
Saddle	Fizak Arione Wing Flex	Fizak Arione Wing Flex
Wheels	Shimano RS10	Easton Circuit
Tires	Vittoria Rubino Pro Slick	Vittoria Rubino Pro Slick
Specs may change without notice.

Warranty

Every Cervélo frame comes with a limited lifetime warranty for the original owner. Please note that frames not purchased from an authorized dealer are not covered by any warranty.

Hendy Sports

2009 Cervelo R3 Dura-Ace 7900

Product Description