Salsa Blackthorn 145 C GX Transmission

Name: Salsa Blackthorn 145 C GX Transmission
Brand: Salsa

2025 MountainEnduro Manufacturer page

Last known price: $6,499

Prices shown first for United States
Fork travel: 160 mm
Wheels: 29″
Drivetrain: 1 × 12 30t / 10–52t
Gear range: 520%
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 157–170
MD 168–180
LG 178–191
XL 188–201

Components

19 of 21 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

Blackthorn 145 Carbon, Carbon Not identified

Suspension

2 parts

Drivetrain

7 parts

Bottom bracket
- SRAM
Cassette
- SRAM
Chain
- SRAM GX Eagle Transmission Flattop 12 speeds
Crankset
- SRAM GX 30t
ISCG-05
Front derailleur

None
Rear derailleur
- SRAM GX Eagle Transmission 12 speeds
Shifters
- SRAM

Brakes

3 parts

Brake levers
- SRAM Maven
Brakes
- SRAM Maven Bronze
Disc rotors

74mm Post-mount (180-200mm rotor) Not identified

Wheels and tires

4 parts

Cockpit and contact points

5 parts

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 472mm

Stack 621mm

Wheelbase 1243mm

Head angle 63.9°

Seat angle 77.4°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 29″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 4 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	452	472	492	512
Stackmm	612	621	630	639
Top tube lengthmm	589	611	633	655
Seat tube lengthmm	405	430	455	480
Head tube lengthmm	100	110	120	130
Head tube angle	63.9°	63.9°	63.9°	63.9°
Seat tube angle	77.4°	77.4°	77.4°	77.4°
Chainstay lengthmm	432	432	432	432
Wheelbasemm	1219	1243	1268	1292
Front centermm	788	812	837	861
Bottom bracket dropmm	25	25	25	25
Bottom bracket heightmm	351	351	351	351
Standover heightmm	746	746	747	747
Fork rakemm	43	43	43	43
Trailmm	136	136	136	136
Stack/reach ratio	1.35	1.32	1.28	1.25
Suspension and parts
Crank lengthmm	165	165	170	170
Handlebar widthmm	760	800	800	800
Stem lengthmm	40	40	40	40

Not published by the manufacturer: Front travel, Rear travel, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Carbon

Suspension

Suspension configuration: Full suspension
Front travel: 160 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 30
Largest chainring: 30
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 52
Lowest gear: 16.7 in
Highest gear: 87.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Derailleur hanger: UDH
Seatpost: Dropper seatpost
Shifting: Electronic

Additional specifications

Bottom bracket standard: BSA
Fork spring: Air
Tire width: 2.5″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

2 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Front travel

160 mm

This value is within the central range for this class.

Cohort: Mountain / Enduro Model year: 2025
Sample: 1,418 bicycles with this information
Coverage: 97.5% of the class

Shifting

Electronic

476 of 1,454 bicycles with this information use electronic shifting.

Cohort: Mountain / Enduro Model year: 2025
Sample: 1,454 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.4 km/h
Highest gear: 33.3 km/h

Total gear range 520%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 16.7–87.0 gear inches

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2025 builds

Differences across 2025 builds
Specification	This bicycle Salsa Blackthorn 145 C GX Transmission	Salsa Blackthorn 125 C Deore 12	Salsa Blackthorn 125 C GX Transmission	Salsa Blackthorn 145 C Deore 12	Salsa Blackthorn 145 C X0 Transmission
Suspension
Front travel	160 mm	140 mm	140 mm	160 mm	160 mm
Drivetrain
Largest sprocket	52	51	52	51	52
Lowest gear	16.7 in	17.1 in	16.7 in	17.1 in	16.7 in
Cockpit
Shifting	Electronic	Mechanical	Electronic	Mechanical	Electronic
Other specifications
Fork spring	Air	Air	Air	Air	Not informed
Wheel material	Aluminum	Aluminum	Aluminum	Aluminum	Carbon