Velopedia Bicycle Archive
2026 Transition TR11 Alloy GX
Original manufacturer specifications including Mixed wheels, 39.4 lbs / 17.88 kg (Size MD) published weight, geometry for 8 published sizes.
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What Velopedia knows
- Model year
- 2026
- Category
- Mountain
- Original MSRP
- $6,599.00
- Sizes
- S, M, L, XL
- Colors
- Moonstone, Nightshade
- Weight
- 39.4 lbs / 17.88 kg (Size MD)
- Geometry
- 8 manufacturer sizes · Geometry context
- Record coverage
- 22 preserved details · 2 archived images · original MSRP · preserved geometry
- Archive ID
- 900001439
Frameset
| Frame Construction | TR11 Alloy 211mm |
|---|---|
| Frame Material | Aluminum |
| Fork | RockShox Boxxer Ultimate(200mm) |
| Rear Shock | RockShox Vivid Ultimate DH(225x75mm) |
Drivetrain
| Shifters | SRAM GX DH 7sp |
|---|---|
| Rear Derailleur | SRAM GX DH Medium Cage |
| Crankset | SRAM Descendent DH DUB(34t/165mm) |
| Cassette | SRAM PG 720 (11-25) |
| Chain | SRAM PC 1130 |
Brakes
| Brakes | TRP EVO Pro; Rotors: TRP RS01E (203mm) |
|---|
Cockpit & Contact Points
| Headset | TR11 Reach Adjust |
|---|---|
| Handlebar | Burgtec Ride HighSM(780x20mm)MD(780x30mm)LG(800x30mm)XL(800x38mm) |
| Stem | Burgtec Direct Mount (45mm) |
| Saddle | Burgtec The Cloud MK2 |
| Seatpost | Trans-X SP66 |
Wheels & Tires
| Hubs | E*Thirteen Sidekick Anti Kickback Hub |
|---|---|
| Rims | E*Thirteen Grappler Sidekick Flux Downhill Wheels |
| Spokes | Sapim D-light / Brass |
| Front Tire | Maxxis Highroller III 3C MaxxGrip DH (2.4) |
| Rear Tire | Maxxis Highroller III 3C MaxxGrip DH (2.4) |
| Wheel Size | Mixed |
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 | SM · High | SM · Low | MD · High | MD · Low | LG · High | LG · Low | XL · High | XL · Low |
|---|---|---|---|---|---|---|---|---|
| Seat tube | 390 mm | 390 mm | 390 mm | 390 mm | 390 mm | 390 mm | 390 mm | 390 mm |
| Effective top tube | 545 mm | 545 mm | 578 mm | 578 mm | 610 mm | 610 mm | 641 mm | 641 mm |
| Head tube | 100 mm | 100 mm | 110 mm | 110 mm | 120 mm | 120 mm | 120 mm | 120 mm |
| Head-tube angle | 63° | 62.6° | 63° | 62.6° | 63° | 62.6° | 63° | 62.6° |
| Chainstay / rear center | 445 mm | 447 mm | 445 mm | 447 mm | 450 mm | 452 mm | 450 mm | 452 mm |
| Wheelbase | 1229 mm | 1229 mm | 1263 mm | 1263 mm | 1303 mm | 1303 mm | 1333 mm | 1333 mm |
| Bottom-bracket drop | 25 mm | 31 mm | 25 mm | 31 mm | 25 mm | 31 mm | 25 mm | 31 mm |
| Reach | 420 mm | 415 mm | 450 mm | 445 mm | 480 mm | 476 mm | 510 mm | 506 mm |
| Stack | 635 mm | 638 mm | 643 mm | 647 mm | 652 mm | 656 mm | 652 mm | 656 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 tools
Analyze a published size
The manufacturer publishes more than one geometry configuration. Velopedia analyzes each labeled state separately while treating them as one chassis in archive comparisons.
SM geometry
Configuration
Archive context: Its stack of 635 mm sits toward the taller end. The head angle of 63° sits toward the slacker end. Its wheelbase of 1229 mm sits toward the longer end.
Compared with 180 distinct mountain geometries in the Small-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze SM · High geometry Archive context: The head angle of 62.6° sits toward the slacker end. Its stack of 638 mm sits toward the taller end. The chainstay of 447 mm sits toward the longer rear-center end.
Compared with 180 distinct mountain geometries in the Small-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze SM · Low geometry MD geometry
Configuration
Archive context: Its stack of 643 mm sits toward the taller end. Its wheelbase of 1263 mm sits toward the longer end. The head angle of 63° sits toward the slacker end.
Compared with 182 distinct mountain geometries in the Medium-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze MD · High geometry Archive context: The head angle of 62.6° sits toward the slacker end. Its stack of 647 mm sits toward the taller end. Its wheelbase of 1263 mm sits toward the longer end.
Compared with 182 distinct mountain geometries in the Medium-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze MD · Low geometry LG geometry
Configuration
Archive context: Its wheelbase of 1303 mm sits toward the longer end. Its stack of 652 mm sits toward the taller end. The head angle of 63° sits toward the slacker end.
Compared with 178 distinct mountain geometries in the Large-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze LG · High geometry Archive context: Its stack of 656 mm sits toward the taller end. Its wheelbase of 1303 mm sits toward the longer end. The head angle of 62.6° sits toward the slacker end.
Compared with 178 distinct mountain geometries in the Large-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze LG · Low geometry XL geometry
Configuration
Archive context: Its wheelbase of 1333 mm sits toward the longer end. The head angle of 63° sits toward the slacker end. The chainstay of 450 mm sits toward the longer rear-center end.
Compared with 153 distinct mountain geometries in the XL-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze XL · High geometry Archive context: The head angle of 62.6° sits toward the slacker end. Its wheelbase of 1333 mm sits toward the longer end. The chainstay of 452 mm sits toward the longer rear-center end.
Compared with 153 distinct mountain geometries in the XL-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze XL · Low geometry Parts & serviceability
Find replacement parts
E*Thirteen Grappler Sidekick Flux Downhill Wheels
Named archived component — verify dimensions
E*Thirteen Sidekick Anti Kickback Hub
Named archived component — verify dimensions
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. 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 and shock were last serviced. Check the stanchions for damage, look for oil at the seals, cycle both units through their travel and test the suspension pivots for 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 22 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 TR11 Alloy GX · Mountain · Published sizes: S, M, L, XL
Frame and fork
Inspect the frame and fork →Archived: Frame: TR11 Alloy 211mm · Fork: RockShox Boxxer Ultimate(200mm)
Suspension
Evaluate the suspension →Archived: Fork: RockShox Boxxer Ultimate(200mm) · Rear shock: RockShox Vivid Ultimate DH(225x75mm)
Drivetrain
Check drivetrain wear →Archived: Shifters: SRAM GX DH 7sp · Rear derailleur: SRAM GX DH Medium Cage · Crankset: SRAM Descendent DH DUB(34t/165mm) · Cassette: SRAM PG 720 (11-25) · Chain: SRAM PC 1130
Brakes
Inspect the brakes →Archived: Brakes: TRP EVO Pro; Rotors: TRP RS01E (203mm)
Wheels and tires
Check wheels and tires →Archived: Wheel size: Mixed · Rims: E*Thirteen Grappler Sidekick Flux Downhill Wheels · Hubs: E*Thirteen Sidekick Anti Kickback Hub · Front tire: Maxxis Highroller III 3C MaxxGrip DH (2.4) · Rear tire: Maxxis Highroller III 3C MaxxGrip DH (2.4)
Controls and contact points
Archived: Headset: TR11 Reach Adjust · Handlebar: Burgtec Ride HighSM(780x20mm)MD(780x30mm)LG(800x30mm)XL(800x38mm) · Stem: Burgtec Direct Mount (45mm) · Seatpost: Trans-X SP66 · Saddle: Burgtec The Cloud MK2
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.