Image 1 of 65
Marzio Bruseghin (Movistar) used this Pinarello Dogma 2 during Stage 19. (Image credit: James Huang)
_V6O7004 - Winners with the champagne celebration at podium (Image credit: James Huang)
The upper and lower surfaces of Gustav Larsson's (Vacansoleil-DCM) FSA OS-99 stem are milled flat to ensure a proper interface with the headset. (Image credit: James Huang)
Selle San Marco provides the Vacansoleil-DCM team with color-matched saddles. (Image credit: James Huang)
Ultra-spindly seat stays on Gustav Larsson's (Vacansoleil-DCM) Bianchi Oltre Superleggera. (Image credit: James Huang)
IMG_4529 - The peloton heading to the Xiangpi Moutain (Image credit: James Huang)
Look KéO Blade pedals for Gustav Larsson (Vacansoleil-DCM). (Image credit: James Huang)
_V6O7004 - Winners with the champagne celebration at podium (Image credit: James Huang)
Gustav Larsson's (Vacansoleil-DCM) Bianchi Oltre Superleggera is equipped with a mixed drivetrain that includes FSA cranks and chainrings, Shimano Dura-Ace derailleurs and cassette, and a gold KMC chain. (Image credit: James Huang)
A Rotor chain catcher prevents derailments on Ryder Hesjedal's (Garmin-Barracuda) Cervélo R5ca. (Image credit: James Huang)
There's a lot going on in this area of Ryder Hesjedal's (Garmin-Barracuda) Cervélo R5ca: two zip-ties holding on the Shimano Dura-Ace Di2 control box, two more for the satellite shifter, and two o-rings for the Garmin Edge 500 mount. Team mechanics leave the computer heads off until the last minute citing problems with theft. (Image credit: James Huang)
A fi'zi:k Arione k:ium saddle is affixed to a zero-offset 3T Doric Team seatpost on Ryder Hesjedal's (Garmin-Barracuda) Cervélo R5ca. (Image credit: James Huang)
Ryder Hesjedal's (Garmin-Barracuda) Cervélo R5ca came from California set for conventional external cable routing so team mechanics resorted to Shimano's special tape to run the Di2 wires. (Image credit: James Huang)
Ryder Hesjedal's (Garmin-Barracuda) ultralight Mavic R-Sys Ultimate wheels are built with tubular carbon fiber spokes bonded to a carbon fiber hub shell and carbon fiber low-profile carbon fiber rims. Teams have been riding these wheels for years but Mavic still has yet to announce a release date. (Image credit: James Huang)
Ryder Hesjedal's (Garmin-Barracuda) Cervélo R5ca sports subtle pink accents. (Image credit: James Huang)
Garmin-Barracuda sponsor Cervélo supplied Ryder Hesjedal with this pink-accented R5ca. (Image credit: James Huang)
Pink bar tape and logos for current Giro d'Italia leader Joaquin Rodriguez's (Katusha) Canyon Aeroad CF. (Image credit: James Huang)
Canyon mounts the Shimano Dura-Ace Di2 under the chain stay on Joaquin Rodriguez's Aeroad CF. (Image credit: James Huang)
Michele Scarponi's (Lampre-ISD) Wilier Triestina Zero.7 is equipped with a basic chain catcher. (Image credit: James Huang)
A matching neon green Selle San Marco Concor saddle for Lampre-ISD captain Michele Scarponi. (Image credit: James Huang)
_V6O6936 - Stage 4 winner, Luka Mezgec of Sava at finishing line (Image credit: James Huang)
Campagnolo Record EPS for Lampre-ISD team leader Michele Scarponi. (Image credit: James Huang)
IMG_4529 - The peloton heading to the Xiangpi Moutain (Image credit: James Huang)
Compact chainrings for Michele Scarponi (Lampre-ISD). (Image credit: James Huang)
A strip of electrical tape provides a little security for Michele Scarponi's SRM PowerControl 7 computer head. (Image credit: James Huang)
_V6O7004 - Winners with the champagne celebration at podium (Image credit: James Huang)
_V6O6936 - Stage 4 winner, Luka Mezgec of Sava at finishing line (Image credit: James Huang)
Wilier Triestina mounts the Campagnolo Record EPS battery under the down tube on Michele Scarponi's ultralight Zero.7 frame. (Image credit: James Huang)
Just in case Michele Scarponi (Lampre-ISD) forgets his name, he can always just look down. (Image credit: James Huang)
Mavic Cosmic Carbone Ultimates for current Giro d'Italia leader Joachim Rodriguez (Katusha). (Image credit: James Huang)
A pink clamp secures the Selle Italia Monolink-compatible carbon fiber seatpost on Joachim Rodriguez's (Katusha) Canyon Aeroad CF. (Image credit: James Huang)
Katusha team sponsor Canyon supplied current Giro d'Italia leader Joachim Rodriguez with this pink-accented Aeroad CF. (Image credit: James Huang)
Mid-compact 52/36T round chainrings for Garmin-Barracuda's Ryder Hesjedal. (Image credit: James Huang)
IMG_4529 - The peloton heading to the Xiangpi Moutain (Image credit: James Huang)
Ryder Hesjedal's (Garmin-Barracuda) Cervélo R5ca was underweight so mechanics fitted stainless steel bottle cages from Arundel. (Image credit: James Huang)
Internal routing keeps things looking clean on Marzio Bruseghin's (Movistar) Pinarello Dogma 2. (Image credit: James Huang)
So exactly how tough was Stage 19? Tough enough that Movistar's Marzio Bruseghin ran a 34T inner chainring to go along with his 11-27T cassette. (Image credit: James Huang)
Marzio Bruseghin (Movistar) ran an 11-27T Campagnolo Record cassette on his Pinarello Dogma 2 for Stage 19 of the Giro d'Italia. (Image credit: James Huang)
Many riders choose to run one bottle with water and another with energy drink, as seen on the Pinarello Dogma 2 of Marzio Bruseghin (Movistar). (Image credit: James Huang)
Marzio Bruseghin (Movistar) runs an integrated cockpit on his Pinarello Dogma 2. (Image credit: James Huang)
22mm-wide Continental Competition Pro Limited Allround tubulars mounted on Easton EC90 SLX shallow-profile carbon wheels for Alessandro Ballan (BMC). (Image credit: James Huang)
Slam that stem? Check - but there's a reason why pro riders' bikes often look like this while the rest of us have to run a higher setup. (Image credit: James Huang)
Alessandro Ballan's (BMC) team-issue SLR01 sports clean-looking Shimano Dura-Ace Di2 routing. (Image credit: James Huang)
Alessandro Ballan's (BMC) BMC SLR01 TeamMachine sports an extreme amount of handlebar drop. Don't try this at home, kids. (Image credit: James Huang)
Alessandro Ballan (BMC) was among several riders running mid-compact 36/52T gearing during Stage 19. (Image credit: James Huang)
A small piece of tape marks the saddle height for Alessandro Ballan (BMC). (Image credit: James Huang)
Stage 19's brutal profile had many riders, including BMC's Alessandro Ballan, reaching for cassettes with 27-tooth or 28-tooth cogs. (Image credit: James Huang)
The BMC team's Elite Sior carbon fiber cages feature a small titanium insert molded into the structure to provide a firmer hold on bottles. (Image credit: James Huang)
BMC normally sells the SLR01 Team Machine with a BB30 bottom bracket but since the team is sponsored by Shimano, those frames come from the factory with bonded-in adapters for press-fit cups. (Image credit: James Huang)
The distinctly wavy fork on Marzio Bruseghin's (Movistar) Pinarello Dogma 2 is neatly integrated into the down tube. (Image credit: James Huang)
Ryder Hesjedal (Garmin-Barracuda) runs the Shimano Dura-Ace Di2 levers low on his 3T Ergosum bars. (Image credit: James Huang)
Specialized once supplied its teams with rebadged Veloflex tires but is now producing its own range of tubulars. (Image credit: James Huang)
Francesco Chicchi's (Omega Pharma-QuickStep) new SRAM Red rear derailleur is affixed to a replaceable aluminum hanger on his Specialized S-Works Venge. (Image credit: James Huang)
New SRAM Red DoubleTap levers for Omega Pharma-QuickStep rider Francesco Chicchi. (Image credit: James Huang)
Hilton Clarke (UnitedHealthcare) takes the nighttime win in Tampa.\ (Image credit: James Huang)
Francesco Chicchi (Omega Pharma-QuickStep) is among several riders still using the previous generation SRAM Red front derailleur (with a team-issue steel cage). (Image credit: James Huang)
Previous-generation SRAM Red chainrings are fitted to Francesco Chicchi's (Omega Pharma-QuickStep) Specialized FACT carbon crankset. (Image credit: James Huang)
Francesco Chicchi (Omega Pharma-QuickStep) ran an 11-28T SRAM PC-1070 cassette for Stage 19. (Image credit: James Huang)
New SRAM Red cam-enhanced single-pivot brake calipers for Francesco Chicchi (Omega Pharma-QuickStep). (Image credit: James Huang)
Specialized infuses Francesco Chicchi's (Omega Pharma-QuickStep) S-Works Venge with a healthy dose of carbon fiber at the bottom bracket. (Image credit: James Huang)
Omega Pharma-QuickStep rider Francesco Chicchi runs traditional-bend handlebars on his Specialized S-Works Venge. (Image credit: James Huang)
Many riders opted for shallow-profile wheels today but Marzio Bruseghin (Movistar) went with deeper-section Campagnolo Bora Ultra Twos. (Image credit: James Huang)
22mm-wide Continental Competition Pro Limited Allround tubulars mounted on Campagnolo Bora Two Ultra wheels for Marzio Bruseghin (Movistar). (Image credit: James Huang)
Marzio Bruseghin (Movistar) keeps things light and firm with this carbon shelled Selle Italia SLR Carbonio saddle. (Image credit: James Huang)
Anatomic-bend Easton aluminum handlebars and Shimano Dura-Ace Di2 ST-7970 Dual Control levers for BMC's Alessandro Ballan. (Image credit: James Huang)
This article appeared on BikeRadar.
Stage 19 of this year's Giro d'Italia was brutal even by a pro rider's standards. The progressively steepening and unrelenting Passo Manghen kicked in just past the halfway point of the nearly 200km-long route and ended with two trips up the Alpe di Pampeago's 16-percent maximum grade.
Aerodynamics took a back seat to weight with all of the major contenders shaving as many grams from their machines as possible, especially from the wheels. Shallow-section tubular wheels with carbon rims was the norm with even Mavic's often-teased-but-as-yet-undelivered R-Sys Ultimate making yet another appearance, this time on the Cervélo R5ca of Ryder Hesjedal . So much weight was removed from some bikes that several riders and teams ran supplemental weights to bring their machines exactly up to code.
Lower-than-normal gearing was common as well with many riders swapping to cassettes with 27T or 28T cogs and some resorting to mid-compact or true compact chainrings, too.
We weren't able to weigh any of the bikes at the start but it's a safe bet that many of them were spot-on at 6.8kg – and if not, those riders were certainly wishing they were. Click here for the gallery.