Custom Specialized Stumpjumper EVO Alloy Aluminum / Gunmetal S4
Hostel Shoppe Custom Build by Jon
Let's get something clear, the Stumpjumper EVO Alloy isn't a "normal" trail bike. It's built to get gnarly, plain and simple. Featuring the same all-new design as its carbon brethren—including an adjustable head tube angle, 150mm of performance tuned travel, the adaptability of S-Sizing, and SWAT™ Door integration—in a lightweight yet tough M5 Alloy chassis, you're going to be able to bomb down trails that you thought you couldn't touch without a full-blown DH rig.
- All the travel in the world is useless without the proper shock tuning and kinematics. For the new Stumpjumper EVO design, we prioritized kinematic performance. Applying lessons learned while developing the Enduro, then following that with more than 1,000 hours of field and suspension lab development, we’ve not only improved the pedaling performance of the Stumpjumper, but we’ve made it more capable, agile, and lively. We increased anti-squat, so the suspension better resists pedal bob, and we further improved bump performance on square-edge hits. Bottom line? This thing shreds trails, not legs.
- The S-Sizing geometry of the new Stumpjumper EVO is our most progressive yet. Long, low, slack, short offset fork, steeper seat tube angle – these are requirements for modern progressive riding. But not everyone jibs the same way, which is why the geo on the new Stumpjumper EVO is fully adjustable with six different settings. You can adjust the BB height by 10mm, you can adjust your head angle by two-degrees, and you can make these adjustments independently of each other. Finally, if you want to go full-party mullet-mode, the EVO lets you run a 27.5-inch rear wheel mated with a 29-inch front.
- Rider-First Engineered™ frames use a size-specific approach to ride characteristics that ensures benchmark handling and flawless performance, regardless of frame or rider size. Whether you’re a jump-happy grom riding an S1, or a DH-fiend giant in need of the lengthy S6, you’ll experience the same ride traits – rail-sharp cornering and balanced front and rear stiffness – at the lightest-possible weight.
- We introduced the SWAT™ door on the Stumpjumper in 2016, adding room IN your frame for those “oh sh**t” necessities like pumps and spare tubes, and immediately rendering jersey pockets redundant.
Frame: M5 Alloy chassis and rear-end, asymmetrical design, 29" Trail Geometry with S-Sizing, SWAT™ Door integration, head tube angle adjustment, horst pivot BB adjustment, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 150mm of travel
Seat Binder: Alloy, 38.6mm
SWAT: SWAT™ Door Integration
Rear Shock: FOX FLOAT X Factory, Rx Trail Tune, EVOL Air sleeve, 2-position Lever w/ LSC Adjustment, 210x55mm Travel
Fork: RockShox Lyrik Ultimate Charger 2.1 RC2, 29 inch, 160mm of Travel, 15x110mm, 42mm Offset, Red
Stem: Renthal Apex Stem - 40mm, 31.8 Clamp, +/-6 Degrees, 1 1/8", Aluminum, Black/Gold
Handlebars: Renthal FatBar V2 Handlebar: 31.8mm, 20x800mm, Black
Grips: ODI Elite Pro, Black, Lock-On
Saddle: Specialized Power Comp Saddle, Black 143mm
SeatPost: FOX Transfer Performance Dropper Seatpost 31.6mm, 175mm, IR, with Problem Solvers 3.3mm Seatpost Shim, 31.6 to 34.9mm
Dropper Lever: Wolf Tooth ReMote Light Action for SRAM MatchMaker Dropper Lever
Front Brake: SRAM Code RSC, 4-piston Caliper, Hydraulic Disc, Post Mount, SRAM Centerline 6-bolt Silver Rotor, 200mm
Rear Brake: SRAM Code RSC, 4-piston Caliper, Hydraulic Disc, Post Mount, SRAM Centerline 6-bolt Silver Rotor, 180mm
Brake Levers: SRAM Code RSC Disc Brake Levers, One-finger, Adjustable Throw
Rear Derailleur: SRAM GX Eagle, 12-speed
Shift Levers: SRAM GX Eagle Trigger Shifter, 12-speed
Cassette: SRAM X01 Eagle XG-1295, 12-speed, 10-50t, XD Driver Body
Chain: SRAM GX Eagle, 12-speed
Crankset: Truvativ Descendant, DUB, 170mm
Chainrings: SRAM Eagle X-Sync2, 30t
Bottom Bracket: SRAM DUB, BSA 73mm, Threaded
Wheelset: Specialized Roval Traverse 29 Carbon Wheelset, 148mm Boost Rear, 110mm Front
Front Tire: Specialized Butcher Grid Trail, GRIPTON® T9 Compound, 2Bliss Ready, 29x2.3" (58-622mm)
Rear Tire: Specialized Eliminator Grid, GRIPTON® T7 Compound, 2Bliss Ready, 29x2.3" (58-622mm)
Updated: Jan 2022
Visit Specialized Bicycles for additional specifications.