
Velopedia Bicycle Archive
2024 Rocky Mountain Flow Jr 20
Original manufacturer specifications including 20" wheels, geometry for 1 published size.
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What Velopedia knows
- Model year
- 2024
- Category
- Kids
- Original MSRP
- $959.00
- Sizes
- One Size
- Colors
- Yellow/Black
- Geometry
- 1 manufacturer size
- Record coverage
- 17 preserved details · archived image · original MSRP · preserved geometry
- Archive ID
- 900000721
Frameset
| Frame Construction | Rocky Mountain 6061 Alloy | Threaded BB | 135mm | Tapered Zerostack Headtube |
|---|---|
| Frame Material | Aluminum |
| Fork | Suntour XCM JR Air 80mm |
Drivetrain
| Crankset | Rocky Mountain Microdrive 2PC | 28T | 104mm Asymmetrical BCD | 24mm Spindle | Crank Length = 127mm |
|---|---|
| Bottom Bracket | Rocky Mountain Sealed - Shimano Compatible |
| Cassette | 14T |
| Chain | KMC Z1 |
Brakes
| Brakes | Tektro MD-M280 |
|---|
Cockpit & Contact Points
| Headset | Rocky Mountain | Loose Ball Bearings | 1-1/8" Reducer Crown Race |
|---|---|
| Handlebar | Rocky Montain Jr | 600mm Width | 25mm rise | 9° Backsweep | 5° Upsweep | 31.8 | For 19mm Grips |
| Stem | Rocky Mountain 31.8 XC | 7° Rise | All Sizes = 40mm |
| Saddle | Rocky Mountain Pivotal Jr |
| Seatpost | Rocky Mountain Pivotal 27.2mm |
Wheels & Tires
| Hubs | Front: Rocky Mountain Nuts; Rear: Novatec Sealed 10x135mm |
|---|---|
| Rims | Rocky Mountain JR30 | 32H | |
| Spokes | 2.0 Stainless |
| Wheel Size | 20" |
Size-specific frame data
Geometry
Manufacturer-published geometry normalized for consistent archival comparison. Effective top tube and reach remain separate measurements because they describe different aspects of fit.
| Measurement | kids |
|---|---|
| Seat tube | 240 mm |
| Effective top tube | 462 mm |
| Head tube | 100 mm |
| Head-tube angle | 68.5° |
| Seat-tube angle | 75° |
| Chainstay / rear center | 310 mm |
| Wheelbase | 866 mm |
| Bottom-bracket drop | 15 mm |
| Reach | 340 mm |
| Stack | 454 mm |
| Standover height | 604 mm |
Geometry source: Manufacturer HTML geometry table ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.
Parts & serviceability
Find replacement parts
More qualified parts (1)
Searches use the archived manufacturer specification, not the components currently installed on a particular bicycle. Confirm the exact model, size and fit before ordering. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases. Commercial relationships do not influence Archive specifications or analysis.
Used-bike inspection
If you’re buying this bike used
Before any test ride: both brakes should stop the bike firmly and release cleanly; both wheels should run true and be securely attached; tires should have no casing damage; and the headset, handlebar, stem, cranks and pedals should have no looseness or play.
Follow the full used-bike inspection order →- FrameLook closely for dents and hairline cracks around welds, the head tube and bottom-bracket area. Cosmetic scratches matter less than a change in shape or a crack line.Inspect the frame and fork →
- BrakesTest each brake separately and confirm it stops firmly and releases cleanly. Inspect the pads and braking surfaces for wear or contamination, and check the cables or hoses for damage.Inspect the brakes →
- SuspensionAsk when the fork was last serviced. Check the stanchions for damage, look for oil at the seals and make sure the fork moves smoothly without bushing play.Evaluate the suspension →
- DrivetrainShift through the full range under light load, measure chain wear and inspect the cassette or freewheel teeth. Skipping or hesitation can indicate wear, poor adjustment or mismatched parts.Check drivetrain wear →
- Wheels & tiresSpin both wheels and watch the rims for side-to-side or vertical movement. Check for dents, cracks, loose or uneven spokes and hub play, then inspect both tire casings for cuts, cracking or exposed threads.Check wheels and tires →
Bike-specific inspection checklist 20 checks based on 6 archived component groups Open checklistClose checklist
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Identity and fit
Follow the full used-bike inspection order →Archived: 2024 Rocky Mountain Flow Jr 20 · Youth · Published sizes: One Size
Frame and fork
Inspect the frame and fork →Archived: Frame: Rocky Mountain 6061 Alloy | Threaded BB | 135mm | Tapered Zerostack Headtube · Fork: Suntour XCM JR Air 80mm
Suspension
Evaluate the suspension →Archived: Fork: Suntour XCM JR Air 80mm
Drivetrain
Check drivetrain wear →Archived: Crankset: Rocky Mountain Microdrive 2PC | 28T | 104mm Asymmetrical BCD | 24mm Spindle | Crank Length = 127mm · Bottom bracket: Rocky Mountain Sealed - Shimano Compatible · Cassette: 14T · Chain: KMC Z1
Brakes
Inspect the brakes →Archived: Brakes: Tektro MD-M280
Wheels and tires
Check wheels and tires →Archived: Wheel size: 20" · Rims: Rocky Mountain JR30 | 32H | · Hubs: Front: Rocky Mountain Nuts; Rear: Novatec Sealed 10x135mm
Controls and contact points
Archived: Headset: Rocky Mountain | Loose Ball Bearings | 1-1/8" Reducer Crown Race · Handlebar: Rocky Montain Jr | 600mm Width | 25mm rise | 9° Backsweep | 5° Upsweep | 31.8 | For 19mm Grips · Stem: Rocky Mountain 31.8 XC | 7° Rise | All Sizes = 40mm · Seatpost: Rocky Mountain Pivotal 27.2mm · Saddle: Rocky Mountain Pivotal Jr
Before and during the test ride
Follow the full used-bike inspection order →Build relationships are limited to the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.