More silicone to seal the rear brake cable’s frame exit(Image credit: Matt Pacocha)
The Vredestein tires are made by Dugast; and another rendition of Compton’s KfC logo made by Victory Circle Graphix(Image credit: Matt Pacocha)
Compton rides 175mm cranks, which is possible without dragging her pedals on the ground due to the Giant TCX Advanced SL’s shallow 5.5cm bottom bracket drop(Image credit: Matt Pacocha)
Thomson’s Elite X4 stem has a 0° rise, which is imperative to Compton’s fit, but isn’t offered by component sponsors PRO(Image credit: Matt Pacocha)
Compton’s zero offset seatmast top is a custom item. The standard production piece offers 25mm of offset(Image credit: Matt Pacocha)
Shimano’s Di2 sprint shifters are installed for both front and rear derailleurs(Image credit: Matt Pacocha)
Legg-Compton has textured the Di2 levers with superglue and sand for better grip and feel on bumpy courses(Image credit: Matt Pacocha)
A better look at the custom sand texturing(Image credit: Matt Pacocha)
Vredestein ‘Rhinos’(Image credit: Matt Pacocha)
Fi’zi:k’s Vesta women’s saddle(Image credit: Matt Pacocha)
Compton uses Shimano’s Dura-Ace 7900 compact crank with 34/44 rings; since Shimano doesn’t make a 44-tooth outer ring, Legg-Compton sourced it from Thorne Components(Image credit: Matt Pacocha)
Compton supports Bike Pure’s promotion of honest and ethical sport(Image credit: Matt Pacocha)
Katie f-ing Compton(Image credit: Matt Pacocha)
Enduro Bearings’ logo peeks through the chainrings(Image credit: Matt Pacocha)
Compton is testing a prototype K-Edge braze-on mounted chain watcher(Image credit: Matt Pacocha)
The rear derailleur's silicone connection is easily broken if needed but offers insurance in mucky conditions(Image credit: Matt Pacocha)
Legg-Compton has sealed all of the Di2 wire connections and cable contamination points with silicone(Image credit: Matt Pacocha)
Compton uses a custom Rabobank colored cantilever brakeset(Image credit: Matt Pacocha)
Silicone plugs the one unused internal cable guide(Image credit: Matt Pacocha)
Katie Compton made the jump from her small private program last year to Giant's massive, Rabobank-sponsored Dutch off-road team. The switch hasn't been without challenge, but it hasn't slowed America's queen of 'cross, who notched up her eighth consecutive national championship title this past weekend at Badger Prairie Park near Madison, Wisconsin.
The American racer rode to a solo victory in the opening round of the 2011/12 UCI Cyclo-cross World Cup season, and she's followed that performance with a string of domestic wins including three rounds of the Exergy US Gran Prix of Cyclo-cross, as well as World Cup podiums in Koksijde and Namur, in Belgium.
Compton's Giant is a small sized TCX Advanced SL, which has been highly customized both to accommodate Shimano's Dura-Ace Di2 electric transmission and also to meet her specific needs. Compton's husband and mechanic, Mark Legg-Compton, has modified or massaged parts all over the bike from his ‘superglue and sand' texture on the Di2 levers to the silicone sealing of all of the Di2 wire connections on the bike.
Compton uses both top-mount brake levers and Shimano's satellite sprint shifters on her handlebar, allowing multiple shifting and braking options for the demanding conditions of cyclo-cross. Her brakes are also custom made, and she uses SwissStop GHP metal pads on her carbon rims. Legg-Compton says the green compound works better in colder conditions.
Legg-Compton has textured the Di2 levers with superglue and sand for better grip and feel on bumpy courses
When a rider changes bikes, there's always an adjustment period, and there was no exception in Compton's switch to her Giant. The small bike is still relatively large, with a 52.5cmtop tube, and this has forced the use of a custom zero offset seatmast clamp and a stem 1cm shorter than she might otherwise prefer.
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Compton also ended up switching crank length after the first month or so of the season, from 172.5cm to 175cm, to better her power output. "After [the USGP in] Fort Collins, she decided to go back to the 175s," Legg-Compton told Cyclingnews. She rides a compact crank with 34-/44-tooth chainring combination; the inner ring is Dura-Ace and the outer is from Thorne Components.
Wheels come in the form of Shimano's Dura-Ace WH-7900-C35-TU carbon tubular wheels. Compton, once sponsored by Dugast, still relies on the Dutch company's tires. Although they're branded as Vredesteins, she still has access to all of the standard tread patterns, as well as the new 33mm width, that's just becoming available for sale.
"We've got some 33 Typhoons in Europe, which she'll run for Worlds," said Legg-Compton. "She's not going to run a file tread at Worlds. We were talking to [Dutch 'cross racer Richard] Groenendaal just before Koksijde, and he said the file tread is slower and there's a lot more rolling resistance. So Katie went out and rode, and she was like, ‘he's right'. I was really surprised at that, but the sand there is super-sticky. Even with a brush the stuff barely comes off."
Compton is testing a prototype K-Edge braze mounted chain watcher
Complete bike specification
Frame: Giant TCX Advanced SL Fork: Giant TCX Advanced SL Headset: Cane Creek 110 zero stack Stem: Thomson Elite X4, 120mm, 0° Handlebar: PRO Vibe Carbon compact, 40cm Bar tape: PRO Smart Silicon Front brake: Custom orange cantilever Rear brake: Custom orange cantilever Front derailleur: Shimano Dura-Ace Di2, braze-on with prototype K-Edge chain watcher Rear derailleur: Shimano Dura-Ace Di2 Shifter: Shimano Dura-Ace Di2 Brake levers: Shimano Dura-Ace Di2, with TRP RL950 top mount lever Cassette: Shimano Dura-Ace 7900, 12-27t Chain: Shimano Dura-Ace 7900 Crankset: Shimano Dura-Ace 7900, 175mm, 34/44t compact Bottom bracket: Press-fit BB86 with Enduro Zero ceramic bearings Pedals: Shimano XTR M970 Wheelset: Shimano Dura-Ace WH-7900-C35-TU Front tire: Vredestein by Dugast (Rhino tread), 32mm (33mm Typhoons in Europe) Rear tire: Vredestein by Dugast (Rhino tread), 32mm (33mm Typhoons in Europe) Saddle: Fi’zi:k Vesta Seatpost: Giant TCX Advanced SL seatmast
Critical measurements
Rider's height: 167.6cm/5ft 5in Rider's weight: 62kg/137lb Saddle height from BB, c-t: 69.5cm Saddle setback: 2.5cm Seat tube length, c-c: 50cm Tip of saddle to center bar: 50.5cm Saddle-to-bar drop: 4.25cm Head tube length: 130cm Top tube length (virtual): 52.5cm Total bicycle weight: 7.64kg/16.86lb
