
Velopedia Bicycle Archive
2026 Transition Spur Eagle 70
Original manufacturer specifications including 29" wheels, 28.8 lbs / 13.07 kg (Size MD) published weight, geometry for 8 published sizes.
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What Velopedia knows
- Model year
- 2026
- Category
- Mountain
- Original MSRP
- $5,499.00
- Sizes
- S, M, L, XL
- Colors
- Nightshade, Frostberry
- Weight
- 28.8 lbs / 13.07 kg (Size MD)
- Geometry
- 8 manufacturer sizes · Geometry context
- Record coverage
- 22 preserved details · 2 archived images · original MSRP · preserved geometry
- Archive ID
- 900001562
Frameset
| Frame Construction | Spur Carbon 120mm |
|---|---|
| Frame Material | Carbon Fiber |
| Fork | Fox Float 34 SL Performance(130mm) |
| Rear Shock | Fox Float SL Performance(190x45mm) |
Drivetrain
| Shifters | SRAM Eagle 70 MMX |
|---|---|
| Rear Derailleur | SRAM Eagle 70 |
| Crankset | SRAM Eagle 70 DUB(32t/165mm) |
| Cassette | SRAM XS 1270 (10-52T) |
| Chain | SRAM Eagle 70 |
Brakes
| Brakes | SRAM Motive Bronze; Rotors: SRAM Centerline (180mm) |
|---|
Cockpit & Contact Points
| Headset | FSA no.42/48/ACB |
|---|---|
| Handlebar | RaceFace Aeffect RSM/MD/LG/XL(780x20mm) |
| Stem | RaceFace Aeffect R (40mm) |
| Saddle | SDG Bel Air 3 |
| Seatpost | SDG TellisSM(150mm)MD(170mm)LG/XL(200mm) |
Wheels & Tires
| Hubs | Novatech D791SB/D902SB |
|---|---|
| Rims | WTB ST i27 |
| Spokes | Pillar Double Butted |
| Front Tire | Maxxis Forekaster EXO/TR (2.4) |
| Rear Tire | Maxxis Forekaster EXO/TR (2.4) |
| Wheel Size | 29" |
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 | 360 mm | 360 mm | 390 mm | 390 mm | 430 mm | 430 mm | 460 mm | 460 mm |
| Effective top tube | 570 mm | 570 mm | 603 mm | 603 mm | 631 mm | 631 mm | 660 mm | 660 mm |
| Head tube | 100 mm | 100 mm | 110 mm | 110 mm | 120 mm | 120 mm | 135 mm | 135 mm |
| Head-tube angle | 66° | 65.5° | 66° | 65.5° | 66° | 65.5° | 66° | 65.5° |
| Chainstay / rear center | 434 mm | 436 mm | 434 mm | 436 mm | 439 mm | 441 mm | 439 mm | 441 mm |
| Wheelbase | 1163 mm | 1163 mm | 1197 mm | 1197 mm | 1231 mm | 1231 mm | 1262 mm | 1262 mm |
| Bottom-bracket drop | 40 mm | 47 mm | 40 mm | 47 mm | 40 mm | 47 mm | 40 mm | 47 mm |
| Reach | 430 mm | 425 mm | 460 mm | 455 mm | 485 mm | 480 mm | 510 mm | 505 mm |
| Stack | 608 mm | 612 mm | 617 mm | 621 mm | 626 mm | 630 mm | 640 mm | 644 mm |
| Standover height | 660 mm | 660 mm | 660 mm | 660 mm | 660 mm | 660 mm | 660 mm | 660 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
Archive context: Its bottom-bracket drop of 40 mm sits somewhat deeper than typical. The head angle of 66° sits somewhat steeper than typical. Its wheelbase of 1163 mm sits close to the middle of the group.
Compared with 180 distinct mountain geometries in the Small-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Archive context: Its bottom-bracket drop of 47 mm sits somewhat deeper than typical. The chainstay of 436 mm sits somewhat longer than typical. Its wheelbase of 1163 mm sits close to the middle of the group.
Compared with 180 distinct mountain geometries in the Small-equivalent size cohort from model years 2024–2027 in the Velopedia archive.MD geometry
Archive context: Its reach of 460 mm sits somewhat longer than typical. The head angle of 66° sits somewhat steeper than typical. The chainstay of 434 mm sits somewhat shorter than typical.
Compared with 182 distinct mountain geometries in the Medium-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Archive context: Its bottom-bracket drop of 47 mm sits somewhat deeper than typical. Its wheelbase of 1197 mm sits close to the middle of the group. Its reach of 455 mm sits close to the middle of the group.
Compared with 182 distinct mountain geometries in the Medium-equivalent size cohort from model years 2024–2027 in the Velopedia archive.LG geometry
Archive context: Its reach of 485 mm sits somewhat longer than typical. The head angle of 66° sits somewhat steeper than typical. Its bottom-bracket drop of 40 mm sits somewhat deeper than typical.
Compared with 178 distinct mountain geometries in the Large-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Archive context: The chainstay of 441 mm sits somewhat longer than typical. Its bottom-bracket drop of 47 mm sits somewhat deeper than typical. Its reach of 480 mm sits somewhat longer than typical.
Compared with 178 distinct mountain geometries in the Large-equivalent size cohort from model years 2024–2027 in the Velopedia archive.XL geometry
Archive context: Its reach of 510 mm sits somewhat longer than typical. The head angle of 66° sits somewhat steeper than typical. Its bottom-bracket drop of 40 mm sits somewhat deeper than typical.
Compared with 153 distinct mountain geometries in the XL-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Archive context: Its bottom-bracket drop of 47 mm sits somewhat deeper than typical. The chainstay of 441 mm sits somewhat longer than typical. Its stack of 644 mm sits close to the middle of the group.
Compared with 153 distinct mountain geometries in the XL-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Parts & serviceability
Find replacement parts
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 →- FrameInspect the frame in bright light, especially around the head tube, bottom bracket, chainstays and clamped areas. Look for cracks, ripples, crushed sections or signs of a previous impact.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 Spur Eagle 70 · Mountain · Published sizes: S, M, L, XL
Frame and fork
Inspect the frame and fork →Archived: Frame: Spur Carbon 120mm · Fork: Fox Float 34 SL Performance(130mm)
Suspension
Evaluate the suspension →Archived: Fork: Fox Float 34 SL Performance(130mm) · Rear shock: Fox Float SL Performance(190x45mm)
Drivetrain
Check drivetrain wear →Archived: Shifters: SRAM Eagle 70 MMX · Rear derailleur: SRAM Eagle 70 · Crankset: SRAM Eagle 70 DUB(32t/165mm) · Cassette: SRAM XS 1270 (10-52t) · Chain: SRAM Eagle 70
Brakes
Inspect the brakes →Archived: Brakes: SRAM Motive Bronze; Rotors: SRAM Centerline (180mm)
Wheels and tires
Check wheels and tires →Archived: Wheel size: 29" · Rims: WTB ST i27 · Hubs: Novatech D791SB/D902SB · Front tire: Maxxis Forekaster EXO/TR (2.4) · Rear tire: Maxxis Forekaster EXO/TR (2.4)
Controls and contact points
Archived: Headset: FSA No.42/48/ACB · Handlebar: RaceFace Aeffect RSM/MD/LG/XL(780x20mm) · Stem: RaceFace Aeffect R (40mm) · Seatpost: SDG TellisSM(150mm)MD(170mm)LG/XL(200mm) · Saddle: SDG Bel Air 3
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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Gallery
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.




