Pro Bike: Michael Rogers’ HTC-Columbia Scott Addict

Sprint or GC, Scott's ultralight chassis keeps on winning

When Michael Rogers wrapped up last week’s Amgen Tour of California, he did it on Scott USA’s stalwart road racer, the Addict.

Since its introduction as a 2007 model, the Addict has proven itself in competition, first under Saunier-Duval Prodir and now in its second season under the HTC-Columbia outfit.

Rogers’ large sized frame is said to weigh under 1kg with its integrated seatmast. The frame and fork have carbon dropouts, while Scott also mould the bottom bracket shell – which accepts Shimano’s BB86 press-fit resin cups – front derailleur mount and cable stops out of carbon.

Scott build the frames from their HMX-Net carbon fibre. HMX is their proprietary blend of carbon, while NET, or Naked External Tubeset, refers to the frame’s lack of a cosmetic carbon layer.

Possibly more important than the material is the IMP moulding process, where the front triangle is moulded as a single piece, allowing Scott to use 11 percent less material than they would with the tube-to-tube moulding method used for their CR1.

The front of Rogers' Addict has a small hole drilled so Di2 wiring can be internally routed

Rogers’ bike features exotic supplements to Shimano’s Dura-Ace Di2 electronic groupset. The main substitutions are the SRM Professional power meter with 7900 compatible spider, an additional bar top mounted electronic push-button shifter for the rear derailleur, and prototype blue brake pads from Shimano – a compound which first showed up at last year’s Tour de France. Prototype carbon-bodied Dura-Ace pedals finish off the Shimano drivetrain.

SRM manufacture a spider for their new crankset that perfectly matches the Dura-Ace 7900 two-piece outer chainring

The bike’s cockpit is fairly straight forward, starting with the round PRO Vibe carbon handlebar and carbon wrapped stem. Saddle is a custom team Antares with braided carbon rails from Fizik.

The wheels Rogers selected for the final stage of the race were Highroad-branded HED Stinger 9s – 90mm tubulars. The key to this wheelset, however, is the use of a 25mm Continental Competition tyre at the rear.

The large rear tyre is the key to preventing snakebite flats and keeping the rider comfortable

HTC-Columbia mechanic Joerg Wohlleben said that because the rim is wide, the team were suffering snakebite punctures. Now all they use at the rear is 25mm tyres, and flatting is no longer an issue.

Wohlleben also said that, because the frame is so stiff, many of the riders prefer the added comfort and improved handling offered by the larger tyre, which also has a stickier tread compound than the 23mm model. He said other teams are considering making the switch to larger tyres for racing, including Rabobank and RadioShack.

Complete bike specifications

Frame: Scott Addict RC
Fork: Scott Addict
Headset: FSA Orbit Z
Stem: PRO Vibe, 13.5mm
Handlebar: PRO Vibe carbon, 42cm
Tape/grips: PRO Smart Silicon
Front brake: Shimano Dura-Ace BR-7900
Rear brake: Shimano Dura-Ace BR-7900
Brake levers: Shimano Di2 ST-7970
Front derailleur: Shimano Di2 FD-7970
Rear derailleur: Shimano Di2 RD-7970
Shift levers: Shimano Di2 ST-7970
Cassette: Shimano Dura-Ace CS-7900, 11-23
Chain: Shimano Dura-Ace CN-7900
Crankset: Shimano Dura-Ace FC-7900
Bottom bracket: Shimano Dura-Ace SM FC-7900, 172.5mm
Pedals: Shimano Dura-Ace prototype carbon
Wheelset: HED Stinger 9
Rims: HED Stinger 9
Front hub: HED Stinger 9 Flamme Rouge
Rear hub: HED Stinger 9
Spokes: HED stainless bladed
Front tyre: Continental Competition 23
Rear tyre: Continental Competition 25
Saddle: Fizik Antares
Seatpost: Scott Addict seatmast, Ritchey one-bolt clamp
Bottle cages: Elite
Computer: SRM PowerControl7
Other accessories: Elite Custom Race bottle cages

Critical measurements

Rider's height: 6ft 1in (1.85 m)
Rider's weight: 75kg (165.34lb)
Saddle height, from BB (c-t): 774mm
Saddle setback: 96mm
Seat tube length, c-t: 745mm
Seat tube length, c-c: 510mm
Tip of saddle nose to C of bars (next to stem): 610mm
Saddle-to-bar drop (vertical): 130mm
Head tube length: 160mm
Top tube length: 565mm, horizontal
Total bicycle weight: 7.43kg (16.38lb)

Related Articles

Comments

Back to top