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2026 Salsa Blackthorn 145 C Eagle 90 Transmission

Original specifications: 29"; 27.5" wheels · 33 lb 15 oz published weight · geometry for 4 published sizes.

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At a glance

Model year
2026
Category
Mountain
Original MSRP
$4,999.00
Sizes
S, M, L, XL
Colors
Black/Graphite Gray
Weight
33 lb 15 oz
Geometry
4 manufacturer sizes
In this record
21 specifications · 3 archived images · original MSRP · geometry
Archive ID
900000405
Campaign
Original buildCarbon Fiber · 29"; 27.5"

Manufacturer catalog

Published sizes and colors

4 sizes · 1 color

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

SMLXL

Published colors

Black/Graphite Gray

Frameset

Frame ConstructionCarbon
Frame MaterialCarbon Fiber
ForkFOX 36 Performance, GRIP, 44mm offset, 160mm

Drivetrain

ShiftersSRAM Eagle 90 Transmission
Rear DerailleurSRAM Eagle 90 Transmission
CranksetSRAM Eagle 90 Transmission, 30t, single guard
Bottom BracketSRAM DUB MTB Wide BSA
CassetteSRAM XS-1270 Eagle Transmission, 10–52t, 12-speed
ChainSRAM GX Eagle Transmission Flattop

Brakes

BrakesBrake Calipers: SRAM Maven Base, 4-piston; Brake Levers: SRAM Maven Base; Rotors: SRAM CenterLine 2.0 (6-bolt, 200mm front and rear)

Cockpit & Contact Points

HeadsetFSA Orbit 1.5E ZS NO.57E
HandlebarRace Face Chester, 35.0
StemSalsa Guide 35.0
SaddleWTB Solano Steel Fusion Form, medium
SeatpostTranzX REVERSE YSI35 w/ GL MMX lever

Wheels & Tires

Hubs(F) WTB Frequency 3x 15 x 110mm / (R) WTB Frequency 3x 12 x 148mm
RimsWTB KOM Trail i30 TCS, 32h, 29"
SpokesDouble-butted
Front TireTeravail Kessel 29 x 2.5", 60TPI Durable casing, Grip Plus compound (WTB TCS valve and sealant included)
Rear TireTeravail Kessel 29 x 2.5", 120TPI Durable Plus casing, Grip Plus compound (WTB TCS valve and sealant included)
Wheel Size29"; 27.5"

Geometry

4 sizes · 17 measurements

Frame measurements by size.

All geometry measurements4 sizes · 17 measurements
MeasurementSmallMediumLargeX-Large
Seat tube405 mm430 mm455 mm480 mm
Effective top tube589 mm611 mm633 mm655 mm
Head tube100 mm110 mm120 mm130 mm
Head-tube angle63.9- 63.663.9- 63.663.9- 63.663.9- 63.6
Seat-tube angle77.4- 77.177.4- 77.177.4- 77.177.4- 77.1
Chainstay / rear center432 mm432 mm432 mm432 mm
Wheelbase1219 mm1243 mm1268 mm1292 mm
Bottom-bracket drop25 mm25 mm25 mm25 mm
Bottom-bracket height351 mm351 mm351 mm351 mm
Reach452 mm472 mm492 mm512 mm
Stack612 mm621 mm630 mm639 mm
Standover height746 mm746 mm747 mm747 mm
Fork offset / rake43 mm43 mm43 mm43 mm
Fork length / axle-to-crown571 mm571 mm571 mm571 mm
Crank length165 mm165 mm165 mm165 mm
Stem length40 mm40 mm40 mm40 mm
Handlebar width780 mm780 mm780 mm780 mm

Dimensions as recorded.

Gearing

Lower gears help on climbs. Higher gears suit higher speeds.

All published sizes30T · 10–52T · 12-speed
Lowest0.58:1 Highest3.00:1 Total range520%

Speed unavailable: wheel or tire size is missing or unclear.

How it works

Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.

Speeds are estimates from tire size and pedal cadence. Actual speeds vary.

Try other gearing

Parts & serviceability

Find replacement parts

Original specifications
Chain · Original
SRAM GX Eagle Transmission Flattop Search: SRAM GX Eagle Transmission Flattop chain
Retailer offers · Affiliate links
Bottom bracket · Original
SRAM DUB MTB Wide BSA
Retailer offers · Affiliate links
Saddle · Original
WTB Solano Steel Fusion Form, medium
More parts (6)
Crankset · Original
SRAM Eagle 90 Transmission, 30t, single guard
Rear derailleur · Original
SRAM Eagle 90 Transmission Search: SRAM Eagle 90 T-Type 12-speed mechanical rear derailleur
Retailer offers · Affiliate links
Shifters · Original
SRAM Eagle 90 Transmission Search: SRAM Eagle 90 T-Type 12-speed mechanical shifter
Handlebar · Original
Race Face Chester, 35.0
Stem · Original
Salsa Guide 35.0
Headset · Original
FSA Orbit 1.5E ZS NO.57E

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
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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.

Archived: 2026 Salsa Blackthorn 145 C Eagle 90 Transmission · Mountain · Published sizes: S, M, L, XL

Archived: Frame: Carbon · Fork: FOX 36 Performance, GRIP, 44mm offset, 160mm

Archived: Fork: FOX 36 Performance, GRIP, 44mm offset, 160mm

Archived: Shifters: SRAM Eagle 90 Transmission · Rear derailleur: SRAM Eagle 90 Transmission · Crankset: SRAM Eagle 90 Transmission, 30t, single guard · Bottom bracket: SRAM DUB MTB Wide BSA · Cassette: SRAM XS-1270 Eagle Transmission, 10–52t, 12-speed · Chain: SRAM GX Eagle Transmission Flattop

Archived: Brakes: Brake Calipers: SRAM Maven Base, 4-piston; Brake Levers: SRAM Maven Base; Rotors: SRAM CenterLine 2.0 (6-bolt, 200mm front and rear)

Archived: Wheel size: 29"; 27.5" · Rims: WTB KOM Trail 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 Kessel 29 x 2.5", 120TPI Durable Plus casing, Grip Plus compound (WTB TCS valve and sealant included)

Controls and contact points

Archived: Headset: FSA Orbit 1.5E ZS NO.57E · Handlebar: Race Face Chester, 35.0 · Stem: Salsa Guide 35.0 · Seatpost: TranzX REVERSE YSI35 w/ GL MMX lever · Saddle: WTB Solano Steel Fusion Form, medium

Before and during the test ride

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Gallery3 images

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Campaign

Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

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