Velopedia Bicycle Archive
2026 Salsa Blackthorn 125 Eagle 70 Transmission
Original specifications: 29"; 27.5" wheels · 34lb 7oz published weight · geometry for 4 published sizes.
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At a glance
- Model year
- 2026
- Category
- Mountain
- Original MSRP
- $3,499.00
- Sizes
- S, M, L, XL
- Colors
- Vapor Gray
- Weight
- 34lb 7oz
- Geometry
- 4 manufacturer sizes
- In this record
- 20 specifications · 3 archived images · original MSRP · geometry
- Archive ID
- 900000410
Original buildAluminum · 29"; 27.5"
Frameset
| Frame Construction | 6061-T6 hydroformed aluminum |
|---|---|
| Frame Material | Aluminum |
| Fork | RockShox Pike, 44mm offset, 140mm |
Drivetrain
| Shifters | SRAM Eagle 70 Transmission |
|---|---|
| Rear Derailleur | SRAM Eagle 70 Transmission |
| Crankset | SRAM Eagle 70 Transmission, 30t |
| Bottom Bracket | SRAM DUB MTB Wide, BSA |
| Cassette | SRAM XS-1270 Transmission, 10–52t, 12-speed |
| Chain | SRAM Eagle 70 Transmission Flattop |
Brakes
| Brakes | Brake Calipers: SRAM DB6, 4-piston; Brake Levers: SRAM DB6; Rotors: SRAM CenterLine 2.0 (6-bolt, 200mm front, 180mm rear) |
|---|
Cockpit & Contact Points
| Headset | FSA Orbit 1.5E ZS NO.57E |
|---|---|
| Handlebar | Alloy, 35.0mm |
| Stem | Salsa Guide 35.0 |
| Saddle | WTB Solano Steel Hybrid Fusion, medium |
| Seatpost | TranzX YSI-05 adjustable-travel dropper w/ GL Matchmaker X lever |
Wheels & Tires
| Hubs | (F) WTB Frequency 3X 15 x 110mm / (R) WTB Frequency 3X 12 x 148mm |
|---|---|
| Rims | WTB ST i30 TCS, 32h, 29" |
| Front Tire | Teravail Kessel 29 x 2.5", 60TPI Durable casing, Grip Plus compound (WTB TCS valve and sealant included) |
| Rear Tire | Teravail Clifty 29 x 2.5", 60TPI Durable casing, Grip Plus compound (WTB TCS valve and sealant included) |
| Wheel Size | 29"; 27.5" |
Geometry
Frame measurements by size.
Published frame view
Select an available measurement to locate it on the frame.
All geometry measurements4 sizes · 17 measurements
| Measurement | Small | Medium | Large | X-Large |
|---|---|---|---|---|
| Seat tube | 405 mm | 430 mm | 455 mm | 480 mm |
| Effective top tube | 587 mm | 609 mm | 631 mm | 653 mm |
| Head tube | 100 mm | 110 mm | 120 mm | 130 mm |
| Head-tube angle | 64.7- 64.4 | 64.7- 64.4 | 64.7- 64.4 | 64.7- 64.4 |
| Seat-tube angle | 78.3- 77.9 | 78.2- 77.9 | 78.2- 77.9 | 78.2- 77.9 |
| Chainstay / rear center | 432 mm | 432 mm | 432 mm | 432 mm |
| Wheelbase | 1210 mm | 1234 mm | 1258 mm | 1283 mm |
| Bottom-bracket drop | 32 mm | 32 mm | 32 mm | 32 mm |
| Bottom-bracket height | 344 mm | 344 mm | 344 mm | 344 mm |
| Reach | 462 mm | 482 mm | 502 mm | 521 mm |
| Stack | 602.4 mm | 611.2 mm | 620 mm | 628.7 mm |
| Standover height | 735.3 mm | 735.7 mm | 736 mm | 736.3 mm |
| Fork offset / rake | 43 mm | 43 mm | 43 mm | 43 mm |
| Fork length / axle-to-crown | 551 mm | 551 mm | 551 mm | 551 mm |
| Crank length | 165 mm | 165 mm | 165 mm | 165 mm |
| Stem length | 40 mm | 40 mm | 40 mm | 40 mm |
| Handlebar width | 780 mm | 800 mm | 800 mm | 800 mm |
Measurements may vary by configuration, wheel size, or frame setting where noted in the published chart.
Gearing
Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.
Parts & serviceability
Find replacement parts

SRAM DUB BSA Bottom Bracket MTB Wide, BSA 68/73/73+
BSA 68/73/73+
More parts (6)

SRAM Eagle 70 T-Type 12-Speed Mechanical Rear Derailleur One Color, Max 52t
Max 52t
Based on the original build. Confirm the model, size and fit before ordering; installed parts may differ. 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.
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 Salsa Blackthorn 125 Eagle 70 Transmission · Mountain · Published sizes: S, M, L, XL
Frame and fork
Inspect the frame and fork →Archived: Frame: 6061-T6 hydroformed aluminum · Fork: RockShox Pike, 44mm offset, 140mm
Suspension
Evaluate the suspension →Archived: Fork: RockShox Pike, 44mm offset, 140mm
Drivetrain
Check drivetrain wear →Archived: Shifters: SRAM Eagle 70 Transmission · Rear derailleur: SRAM Eagle 70 Transmission · Crankset: SRAM Eagle 70 Transmission, 30t · Bottom bracket: SRAM DUB MTB Wide, BSA · Cassette: SRAM XS-1270 Transmission, 10–52t, 12-speed · Chain: SRAM Eagle 70 Transmission Flattop
Brakes
Inspect the brakes →Archived: Brakes: Brake Calipers: SRAM DB6, 4-piston; Brake Levers: SRAM DB6; Rotors: SRAM CenterLine 2.0 (6-bolt, 200mm front, 180mm rear)
Wheels and tires
Check wheels and tires →Archived: Wheel size: 29"; 27.5" · Rims: WTB ST i30 TCS, 32h, 29" · Hubs: (F) WTB Frequency 3X 15 x 110mm / (R) WTB Frequency 3X 12 x 148mm · Front tire: Teravail Kessel 29 x 2.5", 60TPI Durable casing, Grip Plus compound (WTB TCS valve and sealant included) · Rear tire: Teravail Clifty 29 x 2.5", 60TPI Durable casing, Grip Plus compound (WTB TCS valve and sealant included)
Controls and contact points
Archived: Headset: FSA Orbit 1.5E ZS NO.57E · Handlebar: Alloy, 35.0mm · Stem: Salsa Guide 35.0 · Seatpost: TranzX YSI-05 adjustable-travel dropper w/ GL Matchmaker X lever · Saddle: WTB Solano Steel Hybrid Fusion, medium
Before and during the test ride
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Gallery3 images
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.



