What the bike looked like before I tore it down to the frame.
And what the bike looked like after I built it back up (and painted).
So, yeah, this rig is a trail bike. Hmmm…but it’s also a light-enduro. It’s a 160/150 shredder that takes on Greens to Double Blacks and as much punishment as you can wish to throw at it. It has higher-end components coming in at the Pro level build.
Brand: Specialized
Model: Stumpjumper Evo
Level: Pro
Size: S4 (~ Large)
Why did I get this particular bike? Well, I wanted something that could take some harsh drops and my previous 140/130 travel bike was not cutting it. Plus this rig has a slacker head tube angle which gives me more confidence when bombing downhill. I could see myself riding a 170/170 enduro, but I worry about losing a bit more playfulness. I already lost some going up to this level.
So here are the Pro build deets:
| Part | Stock | Me |
| Color | Gloss Sand / Black | Satin Red Onyx / Black |
| Seat Binder | Alloy, 38.6mm | |
| Rear Shock | FOX FLOAT X Factory, Rx Trail Tune, EVOL Air sleeve, 2-position lever w/ LSC adjustment, S4:210x55mm | |
| Fork | FOX FLOAT 36 Factory, GRIP2 damper, 15x110mm, 44mm offset, S4: 160mm of travel | |
| Stem | Deity, 35.0mm | Raceface Turbine R 35mm (handlebar) Stem, Black / 40mm (length) |
| Bar | Roval Traverse SL Carbon, riser bar, 6-degree upsweep, 8-degree backsweep, 30mm rise, 800mm, 35.0mm | Renthal Fatbar 35mm Riser Bar 30mm Rise, Black, backsweep 7, upsweep 5 |
| Grips | Deity, Knuckleduster, Black | Deity Supracush |
| Saddle | Bridge, 143mm (w), Hollow Ti-rails | Chromag Trailmaster, 284mm (l) x 140mm (w), Black, 324g |
| Seat post | Bike Yoke, Revive Max, 34.9, S4: 185mm | |
| Brakes (F/R) | SRAM Code RSC, 4-piston caliper, hydraulic disc, 200mm | |
| Front rotor | SRAM Centerline 6-bolt Rounded Rotor, 200mm | |
| Rear rotor | SRAM Centerline 6-bolt Rounded Rotor, 200mm | SRAM HS2 6-bolt Rounded Rotor, 200mm |
| Derailleur | SRAM X01 Eagle AXS | |
| Shift Levers | SRAM Eagle AXS Rocker Paddle | |
| Cassette | SRAM XG-1295 Eagle, 10-52t | XG-1299 Eagle Cassette Gold |
| Chain | SRAX X01 Eagle, 12-speed | PC XX1 Eagle Chain – Gold, 58 links (57 individual links + the special magic link) |
| Chain Guide | MRP AMg V2 Alloy, 26-32T | |
| Crankset | SRAM X1 Carbon, DUB, S4: 170mm | |
| Chain rings | Alloy, 30T | |
| Bottom Bracket | SRAM DUB, BSA 73mm, threaded | |
| Rims | Roval Traverse Carbon 29, hookless carbon, 30mm inner width, hand-built, 2Bliss Ready (DT Tubeless Ready Tape 32MMx10m, Black) | |
| Front Hub | DT Swiss 350, sealed cartridge bearings, 15x110mm spacing, 28h | |
| Rear Hub | DT Swiss 350, Star Ratchet, 36t engagement, SRAM XD driver body, 12mm thru-axle, 148mm spacing, 28h | Onyx Vesper, Black, SRAM XD driver body, 12mm thru-axle, 148mm spacing, 28h, 6 bolt |
| Spokes | DT Competition Race | DT Swiss Competition Spoke 2.0/1.8/2.0MM 278MM J-Bend Black (Nipples, Black, DT Swiss Standard Spoke Nipples – Brass 2.0x12MM) |
| Front Tire | Butcher, GRID TRAIL casing, GRIPTON T9 compound, 2Bliss Ready, 29×2.3″ | Cannibal, Grid Gravity 2Bliss Ready T9, 29×2.4″ |
| Rear Tire | Eliminator, GRID TRAIL casing, GRIPTON T7 compound, 29×2.3″ | Eliminator, Grid Gravity 2Bliss Ready T7/T9, 29×2.3″ |
| Geometry | S4 |
| Stack | 635mm |
| Reach | 475mm |
| Headtube Length | 115mm |
| Headtube Angle | 64.5° |
| BB Height | 340mm |
| BB Drop | 35mm |
| Trail | 131mm |
| Fork Length (full) | 571mm |
| Fork Rake/Offset | 44mm |
| Front Center | 809mm |
| Chainstay Length | 438mm |
| Wheelbase | 1247mm |
| Top-tube Length (horizontal) | 623mm |
| Bike Standover Height | 762mm |
| Seat Tube Length | 425mm |
| Seat Tube Angle | 76.9° |
| Max Seatpost Insertion | 220mm |
| Min Seatpost Insertion | 80mm |
I built a mountain bike (FROM SCRATCH) 