
Velopedia Bicycle Archive
2026 Transition PBJ 24 Complete
Mountain bicycle from the Velopedia specification archive.
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- Original MSRP
- $1,549.00
- Sizes
- Youth
- Colors
- Acid Bath, Obsidian
- Weight
- 21.7 lbs / 9.84 kg (One Size)
- Geometry
- 1 manufacturer size · Ride analysis
- Archive ID
- 900000710
Current market
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Velopedia analysis
What the specifications mean
The fork provides the documented suspension, so fork setup and rear-tire pressure are the main adjustments for balancing the two ends of the bike. On the alloy frame, dents and hairline cracks around welds matter more than cosmetic scratches. Pay closest attention near the head tube, bottom bracket shell, dropouts and other heavily loaded junctions. The archive lists a published weight of 21.7 lbs / 9.84 kg (One Size). Treat it as a reference for the documented build because frame size, pedals, tire setup and production substitutions can change the actual scale reading.
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: 2026 Transition PBJ 24 Complete · Mountain · Published sizes: Youth
Frame and fork
Inspect the frame and fork →Archived: Frame: PBJ Youth Alloy · Fork: Manitou JUNIT Comp(100mm)
Suspension
Evaluate the suspension →Archived: Fork: Manitou JUNIT Comp(100mm)
Drivetrain
Check drivetrain wear →Archived: Crankset: Samox 2-Piece Alloy Direct Mount(28t/135mm) · Cassette: 12t Single Cog · Chain: KMC K1 Wide
Brakes
Inspect the brakes →Archived: Brakes: SRAM DB4 (Rear Only); Rotors: SRAM Centerline (160mm)
Wheels and tires
Check wheels and tires →Archived: Wheel size: 24" · Rims: WTB ST i30 · Hubs: Novatech D791SB/D256SBT · Front tire: Schwalbe Billy Bonkers (2.0) · Rear tire: Schwalbe Billy Bonkers (2.0)
Controls and contact points
Archived: Headset: FSA No.57E · Handlebar: SDG Slater JR(600x19mm) · Stem: Trans-X (35mm) · Seatpost: Trans-X SP66 · Saddle: SDG Fly JR
Before and during the test ride
Follow the full used-bike inspection order →Interpretation based on the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.
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Frameset
| Frame Construction | PBJ Youth Alloy |
|---|---|
| Frame Material | Aluminum |
| Fork | Manitou JUNIT Comp(100mm) |
Drivetrain
| Crankset | Samox 2-Piece Alloy Direct Mount(28t/135mm) |
|---|---|
| Cassette | 12t Single Cog |
| Chain | KMC K1 Wide |
Brakes
| Brakes | SRAM DB4 (Rear Only); Rotors: SRAM Centerline (160mm) |
|---|
Cockpit & Contact Points
| Headset | FSA No.57E |
|---|---|
| Handlebar | SDG Slater JR(600x19mm) |
| Stem | Trans-X (35mm) |
| Saddle | SDG Fly JR |
| Seatpost | Trans-X SP66 |
Wheels & Tires
| Hubs | Novatech D791SB/D256SBT |
|---|---|
| Rims | WTB ST i30 |
| Spokes | Pillar Straight Gauge |
| Front Tire | Schwalbe Billy Bonkers (2.0) |
| Rear Tire | Schwalbe Billy Bonkers (2.0) |
| Wheel Size | 24" |
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 | Youth |
|---|---|
| Seat tube | 280 mm |
| Effective top tube | 556 mm |
| Head tube | 115 mm |
| Head-tube angle | 69° |
| Chainstay / rear center | 357 - 375 |
| Wheelbase | 958 - 976 |
| Bottom-bracket drop | 15 mm |
| Reach | 360 mm |
| Stack | 538 mm |
Geometry source: Transition first-party SBG geometry table ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.
Geometry interpretation
What this geometry means
The archived table contains multiple manufacturer geometry states. Velopedia preserves source order and analyzes each state separately rather than averaging the published values.
Youth geometry
Riding position
The 538 mm stack is tall relative to the 360 mm reach, pointing to a more upright front-end position rather than an especially long, low cockpit.
Handling tendencies
A 69° head angle combined with a 958 mm wheelbase points to quicker-steering and more responsive steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes. A 357 mm rear center is compact, which tends to make rear-wheel weight shifts and tight direction changes easier than a long-rear-center layout.
Configuration changes
Compared with Configuration 2, this configuration shortens the rear center by 18 mm and shortens the wheelbase by 18 mm.
Riding position
The 538 mm stack is tall relative to the 360 mm reach, pointing to a more upright front-end position rather than an especially long, low cockpit.
Handling tendencies
A 69° head angle combined with a 976 mm wheelbase points to quicker-steering and more responsive steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes. A 375 mm rear center is compact, which tends to make rear-wheel weight shifts and tight direction changes easier than a long-rear-center layout.
Configuration changes
Compared with Configuration 1, this configuration lengthens the rear center by 18 mm and lengthens the wheelbase by 18 mm.
Geometry describes frame proportions and likely tendencies, not a ride test. Rider proportions, cockpit setup, tires, suspension settings, wheel configuration, and component choices can materially change how a bicycle fits and feels.
Gallery
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.




