Pro bike: Todd Wells’ Specialized S-Works Epic 29er

Brand new big wheeler that’s winning out of the gates

Things happen quick over at Specialized: Todd Wells didn’t even have his new S-Works Epic 29er until the day before the U.S. national mountain bike championships, but that didn’t stop him from taking both the elite cross-country and short track national titles on it.


“Leading up to the race, I was going to either use my 26in Epic, which I raced last year or the 29er hardtail,” Wells told BikeRadar. “I rode a lap on the 29er hardtail and it was much too rough, so I was going to use the 26in Epic, but then I got a call from Ned [Overend] two days before the race asking if I wanted to race the new 29er Epic. Before that I had ridden the bike once in Offenburg for 30minutes about a month ago. So I got the bike and it worked just like the 26in except with the benefits of the big wheels, so it was a no brainer.”

Wells cited the larger wheels stability on the course’s fast 40mph fire road descent and its ability to conserve forward momentum through down to uphill transitions as their main advantages.

Wells leading jeremy horgan-kobelski on the first lap of the cross-country:
Matt Pacocha

Wells leading Jeremy Horgan-Kobelski (Subaru-Trek) on the first lap of the cross-country

“This was a high-speed course with a lot of transitions,” said Wells. “I definitely felt the benefit of the 29er.”

After such a successful first weekend on his new bike, Wells took the new bike to the World Cup in Champery, Switzerland and narrowly missed a top 10 placing, finishing 12th.

Wells said that changing his bike just days before the national championships then taking it straight to Europe wasn’t really a big deal.

“Going to a 29er is easier, always,” he said. “The bigger wheels are just more stable.”

Wells’ new S-Works Epic 29er

Wells’ extra-large Epic 29er weighs just 22.26lbs and carries a very similar specification to the 2011 S-Works production model. Highlights include the Roval Controle SL 29 carbon wheelset with 142-plus rear wheel design, Specialized’s modified RockShox Reba S29 Brain equipped 29er fork and the custom-for-Specialized Avid XX R brakeset.

Specialized’s 142-plus rear axle system benefits the bike in two ways. To start the 142x12mm rear axle adds considerable stiffness to the svelte rear swing arm, when compared to a standard titanium or even steel quick release.

Specialized’s design, however, takes things a bit further capitalising on the wider hub spacing by, also, widening the stance of wheel’s hub flanges. This increases the wheel’s stiffness by increasing the spokes’ bracing angle and also moves the cassette out, thereby better aligning it with the crankset, which gives the bike a considerably better chainline. On a race bike, a straighter chainline is absolutely appreciated for its ability allow cross-chaining.

The roval controle sl carbon wheelset is said to weight just 1,400g:
Matt Pacocha

The Roval Controle SL 29 carbon wheelset is said to weight just 1,400g

The final touch to the new wheelset is its carbon 29in rims. The set is, ultimately, an evolved model of the prototype spotted on Wells’ bike during April’s Sea Otter Classic. The carbon rims are sealed with tape for tubeless use.

“The rear end is just so stiff,” said Wells. “Even for the short track; I thought I’d race the hardtail because it’s more of an explosive type of effort, but I feel like the rear end on that new Epic is stiffer than the hardtail.”

Specialized took their 2010 S29 Reba chassis, which sports a FACT tapered carbon crown and larger dropout flanges and adds the Brain damper for 2011. The tunable automatic lockout is said to perfectly complement Specialized’s Fox manufactured Mini-Brain rear shock.

SRAM’s XX R brakeset puts the finishing touches on Wells’ new Epic. The brakes include a retrofit tool free reach adjuster to Avid’s top cross-country racing brake. The adjuster adds a few grams, but reaps immense benefit in terms of adjustability.

Avid’s custom-for-specialized xx r brake lever:
Matt Pacocha

Avid’s custom-for-Specialized XX R brake lever with a no-tool reach adjuster

All of three of the highlights found on Well’s bike are incorporated to the 2011 production model.

Complete bike specifications:

  • Frame:  Specialized S-Works Epic 29er, 100mm travel, FACT 11m carbon, tapered headtube, Press-Fit 30 carbon bottom bracket shell and 142x12mm rear hub standard
  • Rear Shock: custom Specialized-Fox Future shock with remote Brain reservoir
  • Fork:  Reba S29 with Brain damper, 100mm travel
  • Headset: FSA Orbit IS carbon
  • Stem: Syntace F99, 105mm, -6-degree
  • Handlebars: Syntace Vector low rider, 660mm, 12-degree
  • Grips: ESI
  • Front brake: Avid XX R w/ 160mm rotor
  • Rear brake: Avid XX R w/ 140mm rotor
  • Front Derailleur: SRAM XX
  • Rear derailleur: SRAM XX
  • Shifter: SRAM XX
  • Brake levers: SRAM XX R
  • Cassette: SRAM XX, 11-36-tooth
  • Chain: SRAM PC-1090
  • Crankset: Specialized FACT OS BB with XX spider and 39/26-tooth rings, 175mm
  • Bottom bracket: Specialized Press-Fit 30
  • Pedals: crankbrothers eggbeater 11
  • Wheelset: Specialized Roval Controle SL 29 carbon 
  • Front tire: Specialized S-Works Renegade 29×1.9, 28psi
  • Rear tire: Specialized S-Works Renegade 29×1.9, 28psi
  • Saddle: Specialized Phenom SL 143
  • Seat post: S-Works Carbon, 30.9mm, single-bolt head
  • Bottle cages: Specialized S-Works Carbon Rib Cage

Critical measurements:

  • Rider’s height: 187.96cm/6ft 2in
  • Rider’s weight: 77.11kg/170lbs
  • Saddle height from BB, c-t: 81cm
  • Saddle Setback: 7cm
  • Seat tube length, c-t: 52.5cm
  • Tip of saddle to center bar: 64cm
  • Head tube length: 14cm
  • Top tube length (virtual): 64cm
  • Total bicycle weight: 10.09kg/22.26lbs