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Pro Bike: Burry Stander's Specialized S-Works Stumpjumper Carbon HT 29er

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Burry Stander (Specialized Factory Team) used this Specialized S-Works Stumpjumper Carbon HT at the recent Sea Otter Classic.

Burry Stander (Specialized Factory Team) used this Specialized S-Works Stumpjumper Carbon HT at the recent Sea Otter Classic.
(Image credit: James Huang)
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Specialized team mechanics look to have custom-tuned this fork especially for Stander.

Specialized team mechanics look to have custom-tuned this fork especially for Stander.
(Image credit: James Huang)
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The front hub features interchangeable end caps that work with standard quick-release or 15/20mm thru-axle dropouts.

The front hub features interchangeable end caps that work with standard quick-release or 15/20mm thru-axle dropouts.
(Image credit: James Huang)
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The standard RockShox Reba Motion Control damper is swapped out in favor of Specialized's own inertia valve design.

The standard RockShox Reba Motion Control damper is swapped out in favor of Specialized's own inertia valve design.
(Image credit: James Huang)
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crankbrothers' new Eggbeater 11 pedals are said to be far better sealed than in years past.

crankbrothers' new Eggbeater 11 pedals are said to be far better sealed than in years past.
(Image credit: James Huang)
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The 26mm-wide E5 alloy rims are tubeless-compatible.

The 26mm-wide E5 alloy rims are tubeless-compatible.
(Image credit: James Huang)
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Full-length housing is routed neatly along the underside of the top tube.

Full-length housing is routed neatly along the underside of the top tube.
(Image credit: James Huang)
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Specialized intends its Romin SL saddle as a road perch but many pro riders have decided to use it off-road, too.

Specialized intends its Romin SL saddle as a road perch but many pro riders have decided to use it off-road, too.
(Image credit: James Huang)
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The seat tube is offset forward to provide more tire clearance.

The seat tube is offset forward to provide more tire clearance.
(Image credit: James Huang)
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Burry Stander's (Specialized Factory Team) AX-Lightness seatpost incorporates a minimal head assembly.

Burry Stander's (Specialized Factory Team) AX-Lightness seatpost incorporates a minimal head assembly.
(Image credit: James Huang)
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The chain stays are tall and fat while the seat stays are relatively slender.

The chain stays are tall and fat while the seat stays are relatively slender.
(Image credit: James Huang)
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A carbon fiber Carbon-Ti headset cap and alloy bolt replace the standard bits. Removing the upper headset cover drops the front end an extra few millimeters.

A carbon fiber Carbon-Ti headset cap and alloy bolt replace the standard bits. Removing the upper headset cover drops the front end an extra few millimeters.
(Image credit: James Huang)
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Specialized's new Renegade tire looks to be especially fast in hardpack conditions.

Specialized's new Renegade tire looks to be especially fast in hardpack conditions.
(Image credit: James Huang)
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Tidy housing clips are incorporated into the underside of the top tube.

Tidy housing clips are incorporated into the underside of the top tube.
(Image credit: James Huang)
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A -16

A -16
(Image credit: James Huang)
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Burry Stander's (Specialized Factory Team) Specialized S-Works frame features an integrated bottom bracket.

Burry Stander's (Specialized Factory Team) Specialized S-Works frame features an integrated bottom bracket.
(Image credit: James Huang)
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The front SRAM XX brake caliper clamps a 160mm-diameter rotor.

The front SRAM XX brake caliper clamps a 160mm-diameter rotor.
(Image credit: James Huang)
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Burry Stander (Specialized Factory Team) uses a 140mm rear rotor and alloy caliper bolts to shave a few grams.

Burry Stander (Specialized Factory Team) uses a 140mm rear rotor and alloy caliper bolts to shave a few grams.
(Image credit: James Huang)
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A single Specialized S-Works Carbon Rib Cage adorns the down tube.

A single Specialized S-Works Carbon Rib Cage adorns the down tube.
(Image credit: James Huang)
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Burry Stander pairs his SRAM XX drivetrain with a PC 1090 chain.

Burry Stander pairs his SRAM XX drivetrain with a PC 1090 chain.
(Image credit: James Huang)
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Carbon-Ti alloy bolts attach the Rotor Q-Rings to the XX-compatible Specialized S-Works MTB spider.

Carbon-Ti alloy bolts attach the Rotor Q-Rings to the XX-compatible Specialized S-Works MTB spider.
(Image credit: James Huang)
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A straight handlebar helps keep the cockpit height low.

A straight handlebar helps keep the cockpit height low.
(Image credit: James Huang)
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Specialized's S-Works MTB cranks are among the lightest available.

Specialized's S-Works MTB cranks are among the lightest available.
(Image credit: James Huang)
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A SRAM XX rear derailleur moves the chain across an 11-36T XX cassette.

A SRAM XX rear derailleur moves the chain across an 11-36T XX cassette.
(Image credit: James Huang)
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The Reba S29 is the result of a joint collaboration between RockShox and Specialized.

The Reba S29 is the result of a joint collaboration between RockShox and Specialized.
(Image credit: James Huang)
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A tapered carbon fiber crown and steerer assembly is bonded to the Reba upper tubes.

A tapered carbon fiber crown and steerer assembly is bonded to the Reba upper tubes.
(Image credit: James Huang)
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Just in case you were wondering.

Just in case you were wondering.
(Image credit: James Huang)

Like many lighter riders, current UCI U23 cross-country mountain bike world champion Burry Stander (Specialized Factory Team) places a high importance on equipment weight since it comprises a greater percentage of total mass than it does for bigger competitors. Little tweaks here and there may only shave a few grams but when you only weigh 65kg (143lb), it doesn't take much to feel a difference.

Regardless, even Stander understands that weight isn't everything as he added a 29er hardtail – with its heavier wheels and all – to his quiver of race machines just this season. This proved to be the perfect choice for last month's high-speed and non-technical Sea Otter Classic course, too, where he raced the new bike for the first time and won in a three-up sprint over Geoff Kabush (Team Maxxis-Rocky Mountain).

Old habits die hard, though, as Stander's Specialized S-Works Stumpjumper Carbon HT 29er is no boat anchor and displays a wealth of tweaks to bring it down to an impressive 9.23kg (20.35lb) fighting weight.

The foundation is Specialized's top-end S-Works Stumpjumper Carbon HT 29er carbon frame, claimed to weigh just 1,130g (2.49lb) with a tapered head tube, chunky down tube and chain stays, and integrated bottom bracket. Mounted up front is the Specialized/RockShox collaborative Reba S29 fork, which uses stock upper tubes and lower legs but a carbon fiber crown and steerer assembly and inertia valve damper internals for a racier feel, especially in combination with Stander's preferred high air pressure.

Componentry comes mostly from SRAM's ultralight XX 2x10 group but with a few substitutions in key areas. New XX-compatible Rotor Q-Rings are bolted to Specialized's own S-Works carbon fiber crankarms with Carbon-Ti bolts, and the rear XX brake caliper adapter is mounted with red-anodized alloy hardware.

The Specialized label is also applied to the Roval Control ES 29 wheelset with its tubeless-compatible rims, 2:1 lacing pattern and interchangeable front hub fitments; the still-prototype Renegade 29 low-knob tires set at 26psi and converted to tubeless; the carbon fiber S-Works crankset; the S-Works Pro-Set stem; a single carbon fiber bottle cage; and the new Romin SL saddle.