
Velopedia Bicycle Archive
2015 Giant XTC Jr 24
Original manufacturer specifications including Mountian mix drivetrain, geometry for 1 published size.
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What Velopedia knows
- Model year
- 2015
- Category
- Mountain
- Original MSRP
- $480.00
- Sizes
- One Size
- Colors
- Blue
- Geometry
- 1 manufacturer size · Geometry context
- Record coverage
- 25 preserved details · archived image · original MSRP · preserved geometry
- Archive ID
- 1422788
Model history 5 other years
Frameset
| Frame Construction | ALUXX-grade aluminum |
|---|---|
| Frame Material | Aluminum |
| Fork | 50mm travel |
| Fork Material | Suspension |
| Rear Shock | N/A |
Drivetrain
| Component Group | Mountian mix |
|---|---|
| Shifters | Shimano RS35, Twist |
| Front Derailleur | Shimano Tourney |
| Rear Derailleur | Shimano Altus |
| Crankset | Prowheel, 24/34/42 w/chainguard |
| Bottom Bracket | Semi-cartridge BB |
| Cassette | 14x34, 7-speed |
| Rear Cogs | 14x34, 7-speed |
| Chain | KMC HV500 |
| Pedals | Nylon Platform |
Brakes
| Brakes | Alloy, linear pull |
|---|
Cockpit & Contact Points
| Handlebar | Giant Jr MTB, Low rise, 25.4mm |
|---|---|
| Stem | Alloy |
| Saddle | Giant Grow Technology, Jr Sports |
| Seatpost | Alloy, 27.2mm |
Wheels & Tires
| Hubs | Alloy, 32h |
|---|---|
| Rims | Giant Alloy, 24" |
| Spokes | Stainless Steel, 14g |
| Front Tire | Giant Junior Lite Sport, 24x1.95 |
| Rear Tire | Giant Junior Lite Sport, 24x1.95 |
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 | 24 |
|---|---|
| Top tube | 520.7 mm |
| Head-tube angle | 72° |
| Seat-tube angle | 73° |
| Chainstay / rear center | 411.48 mm |
Geometry source: Giant first-party size geometry table ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.
Geometry tools
Analyze a published size
24 geometry
Archive context: The head angle of 72° sits toward the steeper end. The chainstay of 411.5 mm sits toward the shorter rear-center end. The seat angle of 73° sits somewhat steeper than typical.
Compared with 26 distinct mountain geometries in the XL-equivalent size cohort from model years 2015–2017 in the Velopedia archive.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 →
- BrakesInspect pad condition, cable movement and the rim sidewalls or brake tracks for wear. A concave or heavily worn braking surface can mean the wheel also needs replacement.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 every gear under light load and measure chain wear. Confirm that the shifter, derailleur, chain and cassette belong to the same 7-speed system.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: 2015 Giant XTC Jr 24 · Youth · Published sizes: One Size
Frame and fork
Inspect the frame and fork →Archived: Frame: ALUXX-grade aluminum · Fork: 50mm travel · Suspension
Suspension
Evaluate the suspension →Archived: Fork: 50mm travel
Drivetrain
Check drivetrain wear →Archived: Group: Mountian mix · Shifters: Shimano RS35, Twist · Front derailleur: Shimano Tourney · Rear derailleur: Shimano Altus · Crankset: Prowheel, 24/34/42 w/chainguard · Bottom bracket: Semi-cartridge BB · Cassette: 14x34, 7-speed · Rear cogs: 14x34, 7-speed · Chain: KMC HV500
Brakes
Inspect the brakes →Archived: Brakes: Alloy, linear pull
Wheels and tires
Check wheels and tires →Archived: Rims: Giant Alloy, 24" · Hubs: Alloy, 32h · Front tire: Giant Junior Lite Sport, 24x1.95 · Rear tire: Giant Junior Lite Sport, 24x1.95
Controls and contact points
Archived: Handlebar: Giant Jr MTB, Low rise, 25.4mm · Stem: Alloy · Seatpost: Alloy, 27.2mm · Saddle: Giant Grow Technology, Jr Sports · Pedals: Nylon Platform
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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Current market
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.



