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Pro bike: Edvald Boasson Hagen's Pinarello Dogma K

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Edvald Boasson Hagen (Sky Pro Cycling) rode this Pinarello Dogma K at this year's Paris-Roubaix. Sky doesn't just have nice bikes, though - check out the team cars in the background.

Edvald Boasson Hagen (Sky Pro Cycling) rode this Pinarello Dogma K at this year's Paris-Roubaix. Sky doesn't just have nice bikes, though - check out the team cars in the background. (Image credit: James Huang)
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Sturdy aluminum Elite Ciussi bottle cages for Paris-Roubaix.

Sturdy aluminum Elite Ciussi bottle cages for Paris-Roubaix. (Image credit: James Huang)
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fi'zi:k builds custom saddles for Edvald Boasson Hagen (Sky Pro Cycling), starting with a standard Antare VS model but then filling in the rear portion of the channel.

fi'zi:k builds custom saddles for Edvald Boasson Hagen (Sky Pro Cycling), starting with a standard Antare VS model but then filling in the rear portion of the channel. (Image credit: James Huang)
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The fine file tread on the FMB Paris-Roubaix is designed to add extra grip on dust-covered cobblestones.

The fine file tread on the FMB Paris-Roubaix is designed to add extra grip on dust-covered cobblestones. (Image credit: James Huang)
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Edvald Boasson Hagen (Sky Pro Cycling) used 27mm-wide FMB Paris-Roubaix tubulars on 50mm-deep Shimano Dura-Ace WH-9000-C50-TU carbon wheels at Paris-Roubaix.

Edvald Boasson Hagen (Sky Pro Cycling) used 27mm-wide FMB Paris-Roubaix tubulars on 50mm-deep Shimano Dura-Ace WH-9000-C50-TU carbon wheels at Paris-Roubaix. (Image credit: James Huang)
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Berner's carbon fiber cage and ultra-oversized pulleys on Edvald Boasson Hagen's (Sky Pro Cycling) Shimano Dura-Ace Di2 rear derailleur for Paris-Roubaix.

Berner's carbon fiber cage and ultra-oversized pulleys on Edvald Boasson Hagen's (Sky Pro Cycling) Shimano Dura-Ace Di2 rear derailleur for Paris-Roubaix. (Image credit: James Huang)
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Sky riders were somewhat unusual at Paris-Roubaix in that they were all using Shimano Dura-Ace Di2 electronic transmissions. Many other Shimano-equipped riders were on mechanical setups.

Sky riders were somewhat unusual at Paris-Roubaix in that they were all using Shimano Dura-Ace Di2 electronic transmissions. Many other Shimano-equipped riders were on mechanical setups. (Image credit: James Huang)
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175mm-long crankarms and 53/44T gearing on Edvald Boasson Hagen's (Sky Pro Cycling) SRM power meter.

175mm-long crankarms and 53/44T gearing on Edvald Boasson Hagen's (Sky Pro Cycling) SRM power meter. (Image credit: James Huang)
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Sprint shifters for Edvald Boasson Hagen (Sky Pro Cycling).

Sprint shifters for Edvald Boasson Hagen (Sky Pro Cycling). (Image credit: James Huang)
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This looks like a standard PRO PLT aluminum stem forging so why isn't it branded as such? That's because it's a custom length that isn't marketed to consumers: 125mm.

This looks like a standard PRO PLT aluminum stem forging so why isn't it branded as such? That's because it's a custom length that isn't marketed to consumers: 125mm. (Image credit: James Huang)
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Edvald Boasson Hagen (Sky Pro Cycling) used an all-aluminum cockpit at Paris-Roubaix. Check out the Sky-colored SRM PowerControl 7 computer and the new locking handlebar mount, too.

Edvald Boasson Hagen (Sky Pro Cycling) used an all-aluminum cockpit at Paris-Roubaix. Check out the Sky-colored SRM PowerControl 7 computer and the new locking handlebar mount, too. (Image credit: James Huang)
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Shimano Dura-Ace Di2 levers are mounted high on PRO Vibe 7s anatomic-bend aluminum bars.

Shimano Dura-Ace Di2 levers are mounted high on PRO Vibe 7s anatomic-bend aluminum bars. (Image credit: James Huang)
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Edvald Boasson Hagen (Sky Pro Cycling) gets the personal touch to celebrate his current status as Norwegian national road champion.

Edvald Boasson Hagen (Sky Pro Cycling) gets the personal touch to celebrate his current status as Norwegian national road champion. (Image credit: James Huang)
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Pinarello builds the Dogma K with a 1 1/8-to- 1/14" tapered head tube.

Pinarello builds the Dogma K with a 1 1/8-to- 1/14" tapered head tube. (Image credit: James Huang)
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The unusual Pinarello Onda fork looks strange but its wiggly shape does somehow provide an oddly smooth ride.

The unusual Pinarello Onda fork looks strange but its wiggly shape does somehow provide an oddly smooth ride. (Image credit: James Huang)
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The curved seat stays supposedly act as sort of leaf spring when hitting bumps to reduce jarring on cobbles and rough roads.

The curved seat stays supposedly act as sort of leaf spring when hitting bumps to reduce jarring on cobbles and rough roads. (Image credit: James Huang)
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The Dogma K is Pinarello's classics-type bike with a slightly more relaxed geometry than the Dogma 65.1 Think 2 plus additional tire clearance to handle the requisite high-volume tubulars.

The Dogma K is Pinarello's classics-type bike with a slightly more relaxed geometry than the Dogma 65.1 Think 2 plus additional tire clearance to handle the requisite high-volume tubulars. (Image credit: James Huang)
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Bigger-than-normal inner chainrings are practically standard issue at Paris-Roubaix given the flat parcours.

Bigger-than-normal inner chainrings are practically standard issue at Paris-Roubaix given the flat parcours. (Image credit: James Huang)

This article appeared first on Bikeradar

Paris-Roubaix hopeful Edvald Boasson Hagen (Sky Pro Cycling) set off from Compiègne on Pinarello's classics-specific Dogma K – essentially a rebadged version of the KOBH 60.1 model. Boasson Hagen didn't have the best showing with a 47th place finish but his bike looked ready for the arduous task.

Pinarello took a slightly different approach with its Dogma K, building a frameset that was more narrowly suited for the spring classics than the so-called 'endurance' bikes marketed by a number of other companies. Among the changes from the more road racing-oriented Dogma 65.1 Think 2 are a softer-riding rear end, more tire clearance, and mellower handling for added stability on the cobbles.

Notably absent is the extended head tube normally associated with these sorts of machines and in fact, it's essentially unchanged between the two models. As such, Boasson Hagen is able to easily achieve the same position he would normally run and team mechanics don't have to resort to extreme measures to get there.

As is fairly standard practice for Paris-Roubaix bikes these days, equipment changes from everyday road racing rigs are rather modest. Boasson Hagen's bike was fitted with 27mm-wide FMB Paris-Roubaix tubular tires, the bars were double-wrapped, carbon cages were traded for sturdier aluminum ones, and gearing was changed to taller 53/44T chainrings and an 11-23T cassette to better handle Paris-Roubaix's high speed and flat parcours.

Another recent trend found on Boasson Hagen's Pinarello is the use of carbon wheels. Once thought to be wholly inconceivable for Paris-Roubaix's brutal cobbles, Boasson Hagen wrapped those high-volume tires around Shimano's 50mm-deep Dura-Ace WH-9000-C50-TU carbon tubulars.

Boasson Hagen – and the entire Sky team, for that matter – did go against the tide of Shimano-equipped riders at Paris-Roubaix, however, with his use of a Shimano Dura-Ace Di2 electronic transmission. Sprint shifters were installed on the drops just as he would normally run on his stage race machine, and the rear derailleur was fitted with a Berner carbon fiber cage with larger-diameter pulleys that supposedly decrease drivetrain friction.

Even so, it's all fairly standard stuff here – with the exception of Boasson Hagen's saddle. The fi'zi:k Antares VS normally features a central channel from tip to tail but the company has created a custom version – or five of them, to be more precise – where the rear portion of the channel has been filled in before the cover was installed. This lends a more traditional feel in normal riding conditions but still retains the supposed blood flow benefits when sitting further out on the nose.

Carbon wheels, a fancy electronic transmission, and a custom saddle still can't hide the fact that Boasson Hagen's Pinarello seemed rather heavy, however. Actual weight as pictured was 8.46kg (18.65lb) – 240g heavier than Juan Antonio Flecha's KOBH 60.1 from 2010 despite it having 32-hole Ambrosio aluminum box-section rims and 14/15g double-butted spokes.

Given the high-end kit installed, we can draw no other conclusion than that the Dogma K is substantially heavier than its 950g claimed weight or Boasson Hagen's particular chassis was reinforced with additional carbon layers to boost its stiffness and durability.

Complete bike specifications

Frame: Pinarello Dogma K, 55cm
Fork: Pinarello Onda FPK1, 1 1/8-to-1 1/4" tapered
Headset: Pinarello integrated, 1 1/8-to-1 1/4" tapered
Stem: PRO custom team-issue, 125mm x -6°
Handlebars: PRO Vibe 7s Anatomic, 42cm (c-c)
Tape/grips: PRO Smart Silicon, double wrapped
Front brake: Shimano Dura-Ace BR-7900 w/ Shimano blue-compound carbon-specific pads
Rear brake: Shimano Dura-Ace BR-7900 w/ Shimano blue-compound carbon-specific pads
Brake levers: Shimano Dura-Ace Di2 STI Dual Control ST-7970
Front derailleur: Shimano Dura-Ace Di2 FD-7970
Rear derailleur: Shimano Dura-Ace Di2 RD-7970 w/ Berner cage and pulleys
Shift levers: Shimano Dura-Ace Di2 STI Dual Control ST-7970
Cassette: Shimano Dura-Ace CS-7900, 11-23T
Chain: Shimano Dura-Ace CN-7901
Crankset: SRM Wireless PowerMeter DuraAce 7900 Compatible, 175mm, 53/44T
Bottom bracket: Shimano Dura-Ace SM-BB7900
Pedals: Shimano Dura-Ace SPD-SL PD-7810
Wheelset: Shimano Dura-Ace WH-9000-C50-TU
Front tire: FMB Paris-Roubaix tubular, 27mm
Rear tire: FMB Paris-Roubaix tubular, 27mm
Saddle: fi'zi:k Antares VS custom, k:ium rails
Seat post: Pinarello carbon, zero setback
Bottle cages: Elite Ciussi (2)
Computer: SRM PowerControl 7
Other accessories: Token chain catcher