Blackthorn 125 C Deore 12

$3,999.00 USD

~~$0.00 USD~~ $3,999.00 USD

Size Small Medium Large X-Large

Blackthorn 125 C Deore 12 is a carbon trail bike with balance. Its carbon frame lightens your load and makes for a responsive ride, while 125mm of Split Pivot suspension delivers efficient pedaling, predictable braking, and excellent traction throughout its travel. A RockShox Pike fork adds 140mm trail-smoothing travel up front for a bike capable of bold lines or techy features. Our trail geometry is equal parts downhill confidence and climbing comfort for an all-around excellent ride.

Blackthorn’s on-bike cargo mounts make longer trail days more manageable, with dedicated space for two bottles, your repair kit, and our EXP-R Series Trillium Top Tube Bag or a K-Edge computer mount. The Shimano Deore 12-speed drivetrain is one you can count on to shift flawlessly and always have the gear range to grunt up the steepest climbs.

Blackthorn 125 C Deore 12 is the best carbon trail bike if your rides often include a side of adventure (or you want them to).

Warning for Residents of California

⚠️ WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

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Bike Key Features

Split Pivot Suspension System
Allows us to tune the pedaling and braking forces independently
Maximizes pedaling and braking performance without compromising either
Results in optimal pedaling efficiency and traction when braking
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Split Pivot +
Multiple travel classes in one chassis provides riders with the opportunity to adapt their bikes to various adventures
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Flip Chip
Provides the ability to alternate wheel and tire sizes
Riders can adjust for their terrain, or desired handling characteristics
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Suspension Kinematics
Lively, responsive ride feel with good bottom-out resistance
Free, active, and uniform suspension feel under braking
Efficient pedaling, stellar climbing traction, supple small-bump performance
Tunable for all riders
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On-Bike Storage
Adventures require gear and riders should get to choose whether they carry it on their bike or on their body
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Frame Protection
Our products are built from experience — we’ve been there enough to know that a carbon fork can benefit from added protection just as much as the downtube on a suspension bike.
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Product Details

Build Kit

Frameset

Frame

Blackthorn 125 Carbon
Color

Coffee Black/Smoke
Suspension Fork

RockShox Pike, 140mm
Rear Shock

RockShox Super Deluxe

Components

Headset

FSA Orbit 1.5E ZS NO.57E
Seatpost

TranzX YSI05 RAD+ w/ Shimano SL-MT500 I-Spec EV Lever, SM: 150mm travel; MD–LG: 170mm travel; XL: 200mm travel
Stem

Salsa 35.0 Guide Trail, 40mm
Grips/Bar Tape

Salsa File Tread Lock-on
Saddle

WTB Solano, Medium, Steel Rail, Fusion Form
Handlebar

Race Face Chester

Drivetrain

Front Derailleur

N/A
Rear Derailleur

Shimano Deore M6100–SGS
Cassette

Shimano Deore M6100, 10–51t, 12-speed
Chain

Shimano Deore M6100, HYPERGLIDE+
Crankset

Shimano Deore MT512, 30t w/ MRP 1x SL ISCG-05 bashguard
Shifter

Shimano Deore M6100, I-Spec EV
Brake Levers

Shimano Deore M6100
Brake Calipers

Shimano Deore M6120, 4-piston
Bottom Bracket

Shimano MT501
Rotors

Shimano Deore RT64 (Center Lock, 203mm front, 180mm rear)

Wheels

Front Tire

Teravail Clifty, 29 x 2.5", Durable casing, WTB TCS Sealant Included
Rear Tire

Teravail Drawpoint, 29 x 2.5", Durable casing, WTB TCS Sealant Included
Front Hub

Shimano TC500 15 x 110mm
Rear Hub

Shimano TC500 12 x 148mm
Spoke

Butted steel, black
Rim

WTB ASYM i30 TCS, 28h

Weight

Complete Bike

33 lb 11 oz

*Specifications are subject to change without notice

Geometry

Size	Small	Medium	Large	X-Large
A. Effective Top Tube	587.0- 588.0	609.0- 610.0	631.0- 632.0	653.0- 654.0
B. Stand Over	736.0- 733.0	736.0- 733.0	737.0- 733.0	737.0- 733.0
C. Reach	462.0- 458.0	482.0- 478.0	502.0- 498.0	521.0- 518.0
D. Stack	605.0- 609.0	614.0- 617.0	623.0- 626.0	632.0- 635.0
E. Total Seat Tube Length	405.0	430.0	455.0	480.0
F. Headtube Length	100.0	110.0	120.0	130.0
G. Headtube Angle	64.7 - 64.4	64.7 - 64.4	64.7 - 64.4	64.7 - 64.4
H. Seat Tube Angle	78.3 - 77.9	78.3 - 77.9	78.3 - 77.9	78.2 - 77.9
I. BB Drop	32.0- 36.0	31.0- 36.0	31.0- 36.0	31.0- 36.0
J. BB Height	344.0- 340.0	345.0- 340.0	345.0- 340.0	345.0- 340.0
K. Chainstay Length	432.0- 433.0	432.0- 433.0	432.0- 433.0	432.0- 433.0
L. Fork Length Axle to Crown	571.0	571.0	571.0	571.0
M. Fork Offset	43.0	43.0	43.0	43.0
N. Wheelbase	1211.0- 1211.0	1236.0- 1235.0	1260.0- 1260.0	1283.0- 1284.0
Crank Arm Length	165.0	165.0	170.0	170.0
Handlebar Width	780.0	780.0	780.0	780.0
Recommended Rider Height	157.0 - 170.0	168.0 - 180.0	178.0 - 191.0	188.0 - 201.0
Stem Length	40.0	40.0	40.0	40.0

Measurements based on:

an unsprung bike (no sag)
a 29 x 2.5" tire measuring 752mm in diameter
Standover is measured from vertically from ground to top of top tube 50mm forward of bottom bracket center
Note: Where two measurements are listed, the first number is with Flip Chip in default High position; the second number is with Flip Chip in Low position

Frame Specs

Design Wheel/Tire Sizes 55–63.5mm (2.2–2.5")
Alternate Wheel/Tire Sizes 584/27.5" Rear Wheel Only 63–70mm (2.5–2.7")
Max Tire Outer Diameter Frame: 29 x 2.5"
Fork: Max Tire Diameter: 732 mm / Max Tire Width: 81mm
Frame Construction Blackthorn 125 Carbon
Suspension Fork Length (Travel) 160mm
Fork Offset 44mm
Axle to Crown 573mm
Rear Spacing 12 x 148mm
Rear Axle Size 12 x 188mm, TP=1.0, TL=20
Rear Brake (Rotor) 74mm Postmount (180-200mm rotor)
Front Brake (Rotor) 74mm Postmount (180-220mm rotor)
Headset - Upper ZS44/28.6
Headset - Lower ZS56/40
Rear Shock Size 190 x 45mm
Shock Mount, Fore Ø10 x 30mm
Front Spacing 15 x 110mm
Front Axle Size Fox Kabolt: 15 x 155mm, TP=M14 x 1.5, TL=12mm
Steerer Tube 1.125–1.5" Tapered
Crown Race 59mm
Stem Clamp Ø35.4mm
Seatpost Ø30.9mm
Dropper Post Compatible Yes (internal)
Max Post Insertion SM: 215mm; MD: 240mm; LG: 265mm; XL: 290mm
Derailluer Hanger SRAM UDH
Bottom Bracket 73mm BSA
Crankset (Max Ring) 34t, 55mm Chainline
Accessory Mounts Top Tube (top side) Accessory Mounts: One
Bottle Mounts One full size bottle
Fork Mounts None
Front Fender Mounts None
Rear Fender Mounts None

Supportive Documents

Support Document links

Additional Features

Split Pivot rear suspension design

Split Pivot provides a host of impressive suspension characteristics because the system isolates pedaling forces and braking forces from each other, allowing us to tune and optimize the bike for both independently. The concentric rear axle pivot, in conjunction with precise wheel link, brake link, and control link placement, results in excellent bump compliance and pedaling efficiency, smooth and predictable braking throughout travel, and maximum traction

Split Pivot + design methodology

The Split Pivot+ design methodology allows our engineers to optimize a frame for more than one travel class. This means that Blackthorn 125 riders can swap control and shock links, in addition to the rear shock and fork, to switch travel to Blackthorn 145's 145mm rear and 160 mm front capability. One frame, multiple bikes.

Purpose-tuned suspension

Blackthorn-specific control link and shock links optimize the frame geometry and kinematics for its suspension travel, delivering a well-rounded, balanced trail feel

Progressive leverage rate

Blackthorn is designed with a progressive leverage rate that offers plenty of bottom out performance at the end of the stroke, promoting more confidence and control on bigger hits and a deeper feel to the travel. The beginning and mid-stroke provide extremely supple small bump compliance off the top for a smooth ride and consistent mid-travel support to help combat rider fatigue and maintain bike geometry.

Trail Geometry

Blackthorn 125 balances descending confidence with pedaling performance for all-around riding. A 64.7-degree head tube angle makes for a long front center, translating to stability when descending loose, steep trails or railing through rock gardens. Blackthorn’s steep 78.3-degree seat tube angle puts you in a comfortable pedaling position for flats and climbs. Short 432–433mm chainstays keep Blackthorn 125 feeling nimble.

Flip chip

A flip chip allows a simple and quick 5mm adjustment to bottom bracket height and 0.3-degree adjustment to head tube angle to account for your personal preference, terrain, or wheel size and tire diameter

Carbon fiber frame

High-modulus carbon fiber frame, seatstays, and chainstays with 6061-T6 aluminum links for durability

Top tube accessory mounts

Top tube mounts accommodate the Salsa EXP-R Series Trillium Top Tube Bag or K-Edge Top Tube Mount for bike computers

Fits two bottles on all sizes

Stay hydrated on long trail rides with space for two bottles on all frame sizes

Integrated repair kit location

Bring your multitool and tube without scuffing your frame or hauling around a hip pack

Versatile wheel and tire fit

Blackthorn features clearance for up to 29 x 2.5" tires and is compatible with mixed wheel sizes

Coil shock compatibility

Blackthorn is compatible with most coil shocks. See Supportive Documents for coil shock spring rate recommendations.

Molded frame protection

Molded rubber down tube, seat tube, chainstay, and seatstay guards protect your frame from impacts and abrasion

Internally guided cable routing

Internal tubes guide housing through the frame, simplifying setup and maintenance, and creating a clean bike profile

FAQ

How do I convert my Blackthorn between 125mm & 145mm rear travel?

To convert from 125mm of travel to 145mm of travel you will need a 210x55mm stroke shock, the 3056 Shock Link, and a fork or airshaft of your desired travel between 140-160mm. To convert from 145mm of travel to 125mm of travel you will need a 190x45mm stroke shock, the 3046 Shock Link, and a fork or airshaft of your desired travel between 130-140mm. Please see the Travel Conversion Instructions for Blackthorn 2.0 for more details.

Can I run a coil shock?

Yes, Blackthorn 2.0 uses a progressive leverage rate that is compatible with Air and Coil shocks. Please see the attached PDF with starting coil weight recommendations based on rider + gear weight.

Can I run a mixed-wheel setup on this bike?

Yes, we recommend running 165mm or shorter crank arms, the max fork lengths of 160mm for 145 or 140mm for 125, and leaving the flip hip in the default(high) position.

What length dropper post can I fit?

Coming soon

How does the geometry change if I use a suspension fork with 150mm or 140mm of travel?

Coming soon

Do you offer touch-up paint?

No, we do not offer touch up paint. Hobby shops or automotive stores are excellent places to find paint. We suggest you test the paint on a scrap piece of metal before using it on your frame.

I crashed and dented (or cracked) my frame. Is it safe to ride?

Stop riding your frame immediately and take it to the nearest Salsa authorized dealer for inspection. A dented or cracked tube represents a structural weakening of the frame, and is a safety risk.

What is the warranty for this bike?

View warranty

Warranty Information

All Salsa products are warranted against manufacturing defects in materials and workmanship from the date of retail purchase of the product, subject to the limitations detailed below.

Review Warranty Info

Blackthorn 125 C Deore 12