Rear tire: 26×2.5.
Velopedia Bicycle Archive
2011 Rocky Mountain Flatline Pro
Original specifications: SRAM X9 · 9-speed · mechanical rear derailleur · 26" wheels.
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At a glance
Archive #23688- Model year
- 2011
- Category
- Mountain
- Sizes
- S, M, L
- Colors
- Blue/white
- In this record
- 25 specifications · archived image
Model history 5 other years
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Identification clues
2011 archived details
- Published colors
- Blue/white
- Frame
- FORM 7005 aluminum
- Original equipment
- Mountain Mix
Clues, not proof of model year. Colors vary and components may have been replaced.
Original buildFORM 7005 aluminum · Mountain Mix · 26" wheels
Frameset
| Frame Construction | Aluminum |
|---|---|
| Frame Material | FORM 7005 aluminum |
| Fork | RockShox Boxxer RC, 200mm travel |
| Rear Shock | RockShox Vivid R2, 213mm travel |
Drivetrain
| Component Group | Mountain Mix |
|---|---|
| Shifters | SRAM X.7 Trigger |
| Rear Derailleur | SRAM X.9 |
| Crankset | Race Face Respond, 36T teeth |
| Bottom Bracket | Race Face Respond X-Type |
| Cassette | Sram PG950 |
| Rear Cogs | 9-speed, 11 - 28 teeth |
| Chain | SRAM PC 951 |
Brakes
| Brakes | Avid Elixir 5 brakes, Avid Elixir 5 levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" FSA Orbit Z |
|---|---|
| Handlebar | Race Face Respond 31.8 |
| Handlebar Extensions | Not included |
| Stem | RMB DHR Direct Mount |
| Saddle | SDG I Fly I Beam |
| Seatpost | SDG I Beam, 30.9mm diameter |
Wheels & Tires
| Hubs | Front: RMB AM Sealed, Rear: RMB DH Sealed |
|---|---|
| Rims | DT Swiss EX540 |
| Spokes | DT Swiss Champion |
| Front Tire | 26 x 2.5" Maxxis Minion DHF |
| Rear Tire | 26 x 2.5" Maxxis Minion DHR |
| Wheel Size | 26" wheels |
No specifications match. Try a component name or clear your search.
Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM = pedal turns per minute.
How it works
Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.
Speeds are estimates from tire size and pedal cadence. Actual speeds vary.
Try your current gearingChanged tires or gears? Calculate your setup.
Your changes apply to this calculation. The archived build stays unchanged.
Gearing results
| Measure | Original | Your setup |
|---|---|---|
| Lowest ratio | — | — |
| Highest ratio | — | — |
| Total range | — | — |
| Lowest-gear speed | — | — |
| Highest-gear speed | — | — |
Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.
Parts & serviceability
Find replacement parts

SRAM PC-951 Chain - 9 Speed Power link/Gold, 114 links
Model match
More parts (10)Fewer parts
36T teeth
30.9mm diameter
Based on the original build. Check fit and installed parts before ordering. Affiliate links may earn Velopedia a commission. As an Amazon Associate I earn from qualifying purchases.
Parts and service referenceQuick reference before buying parts
Archived specifications for reference. Check the fitted parts before ordering.
- Front tire
- Front: 26 x 2.5" Maxxis Minion DHF, Rear: 26 x 2.5" Maxxis Minion DHR
- Drivetrain
- 9-speed
- Seatpost diameter
- 30.9 mm
- Bottom bracket / shell
- Race Face Respond X-Type
Equipment inspection checks 13 checks based on 6 archived component groups Open equipment checksClose equipment checks
Checks selected from the archived equipment. Confirm what is fitted today. This is not a complete safety inspection; use the full inspection guide before test riding.
Full used-bike inspection guide →
Frame and fork
Inspect the frame and fork →Archived: Frame: Aluminum · Fork: RockShox Boxxer RC, 200mm travel
Suspension
Evaluate the suspension →Archived: Fork: RockShox Boxxer RC, 200mm travel · Rear shock: RockShox Vivid R2, 213mm travel
Drivetrain
Check drivetrain wear →Archived: Group: Mountain Mix · Shifters: SRAM X.7 Trigger · Rear derailleur: SRAM X.9 · Crankset: Race Face Respond, 36T teeth · Bottom bracket: Race Face Respond X-Type · Cassette: Sram PG950 · Rear cogs: 9-speed, 11 - 28 teeth · Chain: SRAM PC 951
Brakes
Inspect the brakes →Archived: Brakes: Avid Elixir 5 brakes, Avid Elixir 5 levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: DT Swiss EX540 · Hubs: Front: RMB AM Sealed, Rear: RMB DH Sealed · Front tire: Front: 26 x 2.5" Maxxis Minion DHF, Rear: 26 x 2.5" Maxxis Minion DHR
Controls and contact points
Archived: Headset: 1 1/8" FSA Orbit Z · Handlebar: Race Face Respond 31.8 · Stem: RMB DHR Direct Mount · Seatpost: SDG I Beam, 30.9mm diameter · Saddle: SDG I Fly I Beam
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.




