2021 Rocky Mountain Growler vs 2019 Specialized Stumpjumper EVO Men's Comp Alloy 29
The S3 is the Specialized Stumpjumper EVO Men's Comp Alloy 29 size closest to your L Rocky Mountain Growler. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Specialized Stumpjumper EVO Men's Comp Alloy 29
Compared with the Rocky Mountain Growler in L, the Specialized Stumpjumper EVO Men's Comp Alloy 29 in S3 places the top of the head tube 20 mm lower and about as far forward, relative to the bottom bracket. Its wheelbase is 13 mm longer, which can contribute to stability at speed.
- Frame stack
- −20 mm
- Lower front end
- Frame reach
- ±0 mm
- About the same reach
- Wheelbase
- +13 mm
- Longer: steadier at speed
- Head angle
- −0.5°
- Slacker: calmer steering
- Chainstays
- +8 mm
- Longer: more planted
The two frames
Rocky Mountain Growler, LSpecialized Stumpjumper EVO Men's Comp Alloy 29, S3Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Rocky Mountain Growler L | Specialized Stumpjumper EVO Men's Comp Alloy 29 S3 | Difference |
|---|---|---|---|
| Reach | 475 | 475mm | ±0 mm |
| Stack | 643 | 623mm | −20 mm |
| Head tube angle | 64 | 63.5° | −0.5° |
| Seat tube angle | 75 | 75.6° | +0.6° |
| Effective top tube | 647 | 635mm | −12 mm |
| Chainstay length | 435 | 443mm | +8 mm |
| Wheelbase | 1239 | 1252mm | +13 mm |
| BB drop | 55 | 47mm | −8 mm |
| Standover | 804 | 770mm | −34 mm |
| Seat tube length | 445 | 450mm | +5 mm |
| Head tube length | 110 | 105mm | −5 mm |
| BB height | not listed | 328mm | |
| Fork length | not listed | 560mm |
Differences are the Specialized Stumpjumper EVO Men's Comp Alloy 29 minus the Rocky Mountain Growler. Full charts: 2021 Rocky Mountain Growler, 2019 Specialized Stumpjumper EVO Men's Comp Alloy 29.
Where each sits in its class
Rocky Mountain GrowlerSpecialized Stumpjumper EVO Men's Comp Alloy 29
Each bike is ranked against the other trail bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Rocky Mountain Growler20 | Specialized Stumpjumper EVO Men's Comp Alloy 29Men's Comp Alloy 29 |
|---|---|---|
| Frame | Rocky Mountain Growler | not listed |
| Fork | SR Suntour XCM34 | Fox FLOAT 36 Rhythm |
| Shifter | Shimano Deore | SRAM NX Eagle |
| Derailleur | Shimano Deore | SRAM NX Eagle |
| Cassette | SunRace CSMS2 | SRAM NX Eagle |
| Chain | KMC X10-1 | SRAM NX Eagle |
| Crankset | Rocky Mountain Microdrive | SRAM NX Eagle |
| Pedals | Alloy platform | not listed |
| Wheelset | Shimano MT400 | not listed |
| Tire | Kenda Amrak | Specialized Butcher |
| Brake | Tektro HD-M275 | SRAM Code R |
| Rotor | 180mm front and rear | not listed |
| Handlebar | Rocky Mountain AM | not listed |
| Stem | Rocky Mountain XC | not listed |
| Grips | Rocky Mountain Lock On Light | Specialized Sensus Lite |
| Headset | FSA Orbit 57B | not listed |
| Dropper post | Rocky Mountain 30.9mm | X-Fusion Manic |
| Saddle | WTB Volt | Specialized Phenom Comp |
| Rear shock | not listed | Fox Float DPX2 Performance |
| Bottom bracket | not listed | SRAM DUB |
| Rim | not listed | Roval Traverse 29 |
| Seatpost | not listed | X-Fusion Manic |
Know what is on every bike.
Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.
Explore the app
