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In this video Geraint Thomas reveals some of the bike setup changes Team Sky make for the cobbles

Team Sky's Geraint Thomas reveals some of the bike setup secrets that Team Sky made to their Pinarello Dogma K bikes ahead of last weekend's Paris-Roubaix in this video just uploaded to his personal Youtube page. 

The team ride Pinarello's Dogma K, the bike designed for the rougher roads with a longer wheelbase and increased tyre clearance compared to the regular Dogma. The team have also fitted Shimano Di2 satellite shifters to the centre of the bars, so they can more easily change gear when riding in the tops, the favoured position for tackling the cobbled roads.

Gearing gets changed for the race, switching to a 46t inner chainring. Because there is virtually no climbing on the course they don't need a 39t, so the larger inner chainring gives a better option to the larger 53t chainring when the going gets tough. They use an 11-25 cassette.

The team run 27mm FMB Paris-Roubaix tubular tyres. As with most teams, tyre pressure is a closely guarded secret, but team mechanic Gary Blem does let on that it is less than 5 bar. That's about 72psi. The tyre pressure will vary from rider to rider though depending on preference. Choosing tyre pressure is one of the biggest concerns for the race. Although the cobbles demand a softer tyre, there is far more smooth road in the race where a softer tyre could be a compromise.

David has worked on the road.cc tech team since July 2012. Previously he was editor of Bikemagic.com and before that staff writer at RCUK. He's a seasoned cyclist of all disciplines, from road to mountain biking, touring to cyclo-cross, he only wishes he had time to ride them all. He's mildly competitive, though he'll never admit it, and is a frequent road racer but is too lazy to do really well. He currently resides in the Cotswolds.