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Pro bike: Ned Overend’s Specialized Rockhopper SL singlespeed

By:
Matt Pacocha, Bikeradar.com
Published:
October 27, 2010, 5:32 BST,
Updated:
October 27, 2010, 6:57 BST
Overend's national championship winning Rockhopper SL 29er SS.

Overend's national championship winning Rockhopper SL 29er SS.

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55-year-old Ned Overend was planning on racing in the elite category at this year's US Mountain Bike National Championships. Instead, Deacon James, Specialized’s director of recreational cross-country R&D, asked if he’d be interested in racing the new 29in-wheeled Rockhopper SL singlespeed.

Overend happily accepted James’s request. Had he raced with the pros, he likely would have beaten half of them. Instead, he became the new national singlespeed champion. “It was a good excuse not to race with the pros,” said Overend. “ That was going to be an ugly race.”

The former world champion duked it out with Cameron Chambers (Specialized Stumpjumper Trail Crew) for most of the race. The former 24-hour national champion was also on a Specialized, though a Stumpjumper with 140mm of travel.

Ned’s national championship ride

Overend won his latest national title on a bike from Specialized’s recreational cross-country line – which is just a step or two up from the company’s base models. The bike is basic in price only, however, as its feature set will keep enthusiasts fulfilled and its one-speed nature will ward off beginners.

Specialized will sell the Rockhopper SL 29er singlespeed as a frameset with headset, seatpost and saddle for just US$440 (there are currently no plans to sell it in the UK). The butted M4 alloy frame features manipulated tubes, including an angled seat tube and a Specialized designed eccentric bottom bracket.

Overend complemented the frame with a RockShox Recon 29er fork, which was painted to match the frame. While the frame and fork can be considered basic, Overend’s parts pick was anything but.

Highlights included a prototype Roval Controle SL carbon 29er wheelset with the brand’s 460g Renegade 29er tire, set up tubeless. These wheels were first spotted during April’s Sea Otter Classic where factory team rider Todd Wells used them.


Zipp's Vuka Quad bottom bracket fits a 30mm crank spindle to a standard bottom bracket shell.

The most interesting component was the S-Works FACT OSBB carbon crankset with a Rotor chainring that fitted the threaded ecentric bottom bracket through the use of Zipp’s Vuka Quad Bottom Bracket. The Zipp external bearing BB retrofits the crank’s 30mm axle to a standard bottom bracket shell.

Magura’s Marta SL Magnesium brakes paired to Avid XX brake rotors took care of slowing Overend down, and he used a flat alloy bar equipped with Specialized S-Works carbon ‘Overendz’ bar ends. “I’m surprised you don’t see more singlespeeders using bar ends,” he said. “They give you way more leverage for the climbs.”

With Shimano PD-M540 pedals, Overend’s medium Rockhopper SL 29er SS weighed 21.4lb. The more important number, to singlespeeders, is likely his gear choice: Overend used a 34-tooth Rotor 110BCD shaped road chainring and 21T Niner singlespeed cog to tackle the straight-up, straight-down, high-altitude course in Sol Vista, Colorado.

Full Specifications

Complete bike specifications:

Frame: Rockhopper SL 29er singlespeed, formed M4 alloy, eccentric bottom bracket, 17in
Fork: RockShox Recon 29er Gold R Motion Control damper, 80mm travel
Headset: Cane Creek IS carbon
Stem: Syntace F119, 90mm, -6°
Handlebars: Specialized XC Flat II, 660mm, 8°
Grips: ESI
Front brake: Magura Marta SL w/ Avid XX 160mm rotor
Rear brake: Magura Marta SL w/ Avid XX 140mm rotor
Front Derailleur: N/A
Rear derailleur: N/A
Shifter: N/A
Brake levers: Magura Marta SL
Cassette: Niner 21-tooth singlespeed cog
Chain: SRAM PC-1
Crankset: Specialized FACT OS BB with Rotor 34-tooth chainring, 175mm
Bottom bracket: Zipp Vuka Quad
Pedals: Shimano PD-M540
Wheelset: Specialized Roval Controle SL 29 carbon prototype
Front tire: Specialized S-Works Renegade, 28psi
Rear tire: Specialized S-Works Renegade, 28psi
Saddle: Specialized Henge SL 130
Seatpost: S-Works Carbon, 30.9mm, single-bolt head
Bottle cages: Specialized S-Works Carbon Rib Cage

Critical measurements:

Rider's height: 172.72cm/5ft 8in
Rider's weight: 62.59kg/138lb
Saddle height from BB, c-t: 71cm
Seat tube length, c-t: 44.5cm
Tip of saddle to center bar: 55cm
Head tube length: 11cm
Top tube length (virtual): 59.5cm
Total bicycle weight: 9.70kg/21.4lb

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