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Men's Stumpjumper Expert 29

Men's Stumpjumper Expert 29

Part No. 95719-3802

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Ever had a ride that felt more like an experience than just a ride? Us, too, and we"ve been chasing that feeling ever since. With the Stumpjumper Expert 29, we"ve bottled up that feeling and put into a radical new frame design that"s so in-tune with the trail, the bike feels like an extension of your body. Seriously, it"s going to make you rethink how a trail bike should ride. Our design goal for the new Stumpjumper was simple—build the ultimate trail bike, one that feels telepathic. And it turns out that this feeling all comes down to stiffness. Think of it this way: when the frame"s telling your hands one thing and your feet another, your brain gets confused with the imbalance and the bike feels unstable. In order to fix this, we had to get to work on dialing-in the materials, shapes, and the layout. We started by creating our own mountain-specific stiffness test, and then we looked at the layout with Finite Element Analysis (FEA) to see where we could get the biggest stiffness improvements. This led to a big discovery: The Large and X-Large frames needed more front-end stiffness while the Smalls and Mediums were just fine. We were able to create a frame design that was 20% more efficient. And in the end, this proved to be one of the lightest trail frames on the market, today. When designing the frame with the stiffness targets being a main goal, we developed a radical new sidearm design. The front-end and rear-end are connected at three points, and the sidearm helps keep all these points super stiff and connected, all while taking about 100 grams out of the rear-end. More explicitly, this minimizes frame flex when the rear suspension is active. We continued down the suspension path with a custom Rx Trail Tune on both the fork and rear shock. Suspension performance is highly dependent on frame, wheel, and rider size, so we use our Rx Tune to get each bike to land in the middle of the adjustment spectrum, and this gives you the biggest possible range to fine-tune your ride. Another focal point of the tune was matching the suspension characteristics between wheel sizes—we developed a specific Rx Tune for each platform. So, no matter what wheel size you prefer, you"ll get perfectly linear suspension. Steps were also taken to make this bike easy to live with. Threaded bottom brackets make a triumphant return, and we made room for up to a 2.6" tire. You"re also free to run whatever aftermarket rear shock you want, since we"re using standard metric shocks. We revamped the SWAT™ box, too, making it sleeker, lighter, and with more volume. And customization is furthered with a Flip Chip that lets you to dial-in your Stumpy to your riding style. Switch it from High to Low and it drops your bottom bracket 6mm and slackens the head tube by half-a-degree. Little details also jump out to surprise you, like a newly designed ribbed chainstay protector that makes chain slap a thing of the past and nearly silences the drivetrain. Lastly, we seriously couldn"t make cable routing any easier on carbon models. Full tubes can be found throughout the carbon frame, so all you have to do is push the cable and it"ll come out the other end. No more lazy loop, hidden stashes of magnets, pokey spokes, or pillows to cry in. For the build, you get a solid components package with a full SRAM GX1 Eagle drivetrain, SRAM Guide R disc brakes, RockShox front and rear suspension (150/140mm of travel respectively), and Roval Traverse Carbon 29 wheels.

  • The Stumpjumper"s asymmetrical, FACT 11m carbon fiber construction is lightweight, stiff, and ready to take on the trail. It"s built off our 29 Trail Geometry, so it"s just the right amount of both capable and comfortable. And with SWAT™ integration in the down tube, a threaded BB, easy cable routing, and an all new chain silencer, it"s ready for anything the trail, or you, throw at it.
  • With three different compression adjustments—open/pedal/lock—incredible damping performance, and our Rx Trail Tune, the RockShox Deluxe RT3 perfectly complements the Stumpjumper.
  • RockShox"s Pike is known for its trail performance, and the RC found here has stiff stanchions, a Charger damper, and plenty of sensitivity.
您曾經感覺過騎乘自行車像是某種嶄新的體驗,而不只是騎乘另一台新車的經驗嗎? 我們也是,從那個時候開始,我們就不斷在追求這種感覺。 有了這台Stumpjumper Expert 29,我們將這種感覺保留了下來。它採用了先進新穎的車架設計,操控既靈活又活潑,並且讓您與最愛的林道維持協調,感覺它就像是您身體的延伸。 說真的,騎乘這一部Stumpjumper會讓您重新體會越野自行車的騎乘感受。

我們新Stumpjumper的設計目標很簡單-打造終極越的林道車。事實證明,不良的騎乘感覺源自僵硬的結構。試想:當車架回饋到您的手掌是一回事,而腳的感覺又是另一回事,您的大腦會因這種不平衡感而覺得困惑,並且自行車會不穩定。為了解決這個問題,我們重新開始研究材料,形狀和幾何。

我們首先定義了我們測試越野車剛性的方法,然後研究使用有限元分析(FEA)以了解在何處可以改進剛性。我們有了重大發現:L尺寸以及XL尺寸的車架需要更堅硬的頭管,而S尺寸和M尺寸就表現剛好。我們能夠製造出提升效率達20%的車架設計。最終,這被證明是當今市場上操控最佳的越野自行車之一。

設計以剛性為目標的車架時,我們使用了全新的側臂設計。前端和後端在三個點連接,並且利用側臂保持這些點的堅固性和簡易連接性,同時從後三角節省了約100克的重量。更明確地說,當後避震處於運動狀態時,這可以最大程度地減小車架的彎曲程度。

避震性能與車架、車輪、以及騎乘者的體型高度關聯,因此使用我們的Rx Tune可讓每輛自行車都落在調整範圍的中間值,讓前叉和後避震擁有最大的調整性。避震性能與車輪選擇也有極大的關係,因此我們使用Rx Tune,讓您不論選擇什麼尺寸的輪徑都可以得到完美的線性懸吊。

讓這輛自行車更易於維護。旋入式五通終於回來了! 我們為2.6輪胎留出了足夠的空間。由於我們使用標準規格的避震系統,因此您也可以自由更換您想要的零配件。我們還對SWAT™儲存科技進行了改良,使它更時尚,更輕巧,並且擁有更大的體積。Flip Chip設計更進一步保留了調整空間,您可以自由設定Stumpy的騎乘風格。從“高”切換到“低”,它會讓五通下降6mm,讓頭管角度後傾半角。小細節也讓您大吃一驚,例如新的鏈條保護裝置,讓鏈條拍打後下叉成為過去式,騎乘時可以降低傳動系統發出的噪音。最後,我們在碳纖維車架中簡化走線。整個車架中都可以找到滿滿的預藏走線管,組車或保養時您唯一需要做的事情就是把管線往前推,線材將從另一端伸出。不再需要大費周章的用磁鐵、夾子、工具等拉線。

與每一台S-Works等級的自行車一樣,此S-Works Stumpjumper 29配備了頂級的零配件,例如完整的SRAM GX1 Eagle傳動系統,SRAM Guide R碟煞制動器,RockShox前後避震(分別為150 / 140mm)以及Roval Traverse Carbon 29輪組。

Technical Specifications

Frame FACT 11m, full carbon chassis and rear-end, asymmetrical design, 29 Trail Geometry, SWAT™ Door integration, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 140mm of travel
Fork RockShox Pike RC, DebonAir, rebound/low-speed compression adjust, tapered steerer, 51mm offset, 15mm Maxle® Stealth thru-axle, 15x110mm Boost™, 150mm of travel
Rear Shock RockShox Deluxe RT3, Rx Trail Tune, rebound & 3-position compression adjust, 210x50mm
Handlebars Specialized Trail, 7050 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 780mm, 31.8mm clamp
Stem Specialized Trail, forged alloy, 4-bolt, 5mm rise, 40mm
Grips Specialized Sip grip, half-waffle, S/M
Saddle Body Geometry Phenom Comp, hollow Cr-Mo rails, 143mm
Seatpost Command Post IRcc, 16-position micro-height adjustable, two-bolt head, bottom mount cable routing, remote SRL lever, 34.9mm, S
Front Brake SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 200mm
Rear Brake SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 180mm
Shift Levers SRAM GX Eagle, trigger, 12-speed
Rear Derailleur SRAM GX Eagle, 12-speed
Cassette SRAM XG-1275 Eagle, 12-speed, 10-50t
Crankset Truvativ Descendant, aluminum, Boost™ 148, 170mm crankarm, 24mm spindle
Chainrings 30T
Bottom Bracket SRAM GXP
Chain SRAM GX Eagle, 12-speed
Rims Roval Traverse Carbon 29, hookless carbon, 30mm inner width, hand-built, tubeless ready, 28h
Front Hub Specialized, sealed cartridge bearings, 15x110mm spacing, 28h
Rear Hub Specialized, sealed cartridge bearings, 12x148mm thru-axle, 28h
Spokes DT Swiss Industry
Front Tire Butcher, GRID casing, GRIPTON® compound, 2Bliss Ready, 29x2.6"
Rear Tire Purgatory, GRID casing, GRIPTON® compound, 2Bliss ready, 29 x2.6"

Technical Specifications

Frame FACT 11m, full carbon chassis and rear-end, asymmetrical design, 29 Trail Geometry, SWAT™ Door integration, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 140mm of travel
Fork RockShox Pike RC, DebonAir, rebound/low-speed compression adjust, tapered steerer, 51mm offset, 15mm Maxle® Stealth thru-axle, 15x110mm Boost™, 150mm of travel
Rear Shock RockShox Deluxe RT3, Rx Trail Tune, rebound & 3-position compression adjust, 210x50mm
Handlebars Specialized Trail, 7050 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 780mm, 31.8mm clamp
Stem Specialized Trail, forged alloy, 4-bolt, 5mm rise, 40mm
Grips Specialized Sip grip, half-waffle, S/M
Saddle Body Geometry Phenom Comp, hollow Cr-Mo rails, 143mm
Seatpost Command Post IRcc, 16-position micro-height adjustable, two-bolt head, bottom mount cable routing, remote SRL lever, 34.9mm, S
Front Brake SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 200mm
Rear Brake SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 180mm
Shift Levers SRAM GX Eagle, trigger, 12-speed
Rear Derailleur SRAM GX Eagle, 12-speed
Cassette SRAM XG-1275 Eagle, 12-speed, 10-50t
Crankset Truvativ Descendant, aluminum, Boost™ 148, 170mm crankarm, 24mm spindle
Chainrings 30T
Bottom Bracket SRAM GXP
Chain SRAM GX Eagle, 12-speed
Rims Roval Traverse Carbon 29, hookless carbon, 30mm inner width, hand-built, tubeless ready, 28h
Front Hub Specialized, sealed cartridge bearings, 15x110mm spacing, 28h
Rear Hub Specialized, sealed cartridge bearings, 12x148mm thru-axle, 28h
Spokes DT Swiss Industry
Front Tire Butcher, GRID casing, GRIPTON® compound, 2Bliss Ready, 29x2.6"
Rear Tire Purgatory, GRID casing, GRIPTON® compound, 2Bliss ready, 29 x2.6"

Geometry

Geometry Chart

Tarmac - Geometry

S M L XL
  S M L XL
Stack 614mm 614mm 641mm 656mm
Reach 405mm 425mm 445mm 470mm
HeadTubeLength 95mm 95mm 125mm 140mm
HeadTubeAngle 66.5deg 66.5deg 66.5deg 66.5deg
BBHeight 342mm 342mm 342mm 342mm
BBDrop 33mm 33mm 33mm 33mm
Trail 107mm 107mm 107mm 107mm
ForkLength,Full 560mm 560mm 560mm 560mm
ForkRake/Offset 51mm 51mm 51mm 51mm
FrontCenter 714mm 734mm 766mm 797mm
ChainstayLength 437mm 437mm 437mm 437mm
Wheelbase 1149mm 1169mm 1201mm 1232mm
TopTubeLength(Horizontal) 572mm 595mm 628mm 662mm
BikeStandoverHeight 747mm 750mm 762mm 775mm
SeatTubeLength 380mm 410mm 455mm 505mm
SeatTubeAngle 74.8deg 74.5deg 74.1deg 73.7deg

Geometry

Geometry Chart

Tarmac - Geometry

S M L XL
  S M L XL
Stack 614mm 614mm 641mm 656mm
Reach 405mm 425mm 445mm 470mm
HeadTubeLength 95mm 95mm 125mm 140mm
HeadTubeAngle 66.5deg 66.5deg 66.5deg 66.5deg
BBHeight 342mm 342mm 342mm 342mm
BBDrop 33mm 33mm 33mm 33mm
Trail 107mm 107mm 107mm 107mm
ForkLength,Full 560mm 560mm 560mm 560mm
ForkRake/Offset 51mm 51mm 51mm 51mm
FrontCenter 714mm 734mm 766mm 797mm
ChainstayLength 437mm 437mm 437mm 437mm
Wheelbase 1149mm 1169mm 1201mm 1232mm
TopTubeLength(Horizontal) 572mm 595mm 628mm 662mm
BikeStandoverHeight 747mm 750mm 762mm 775mm
SeatTubeLength 380mm 410mm 455mm 505mm
SeatTubeAngle 74.8deg 74.5deg 74.1deg 73.7deg
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