Let’s get down: Blackthorn 145 C X0 Transmission is our carbon all-mountain bike made to take on rowdy and rugged trails with you.

Its stiff carbon frame and WTB CZR carbon wheels make for a light, responsive ride you’ll appreciate when picking through techy terrain. Our all-mountain geometry is slack enough to make steep, techy descents feel less harrowing without sacrificing uphill pedaling comfort. 145mm of rear Split Pivot suspension travel soaks up trail impacts and serves as a perfect pedaling platform when the trail points back up. Paired with a RockShox Lyrik Ultimate 160mm fork, you’ve got enough cushion for control through drops, rock gardens, steep slabs, and more.

Blackthorn’s on-bike cargo mounts make room for two bottles plus your tube and multitool; top tube mounts accept our EXP-R Series Trillium Top Tube Bag or a K-Edge computer mount. SRAM’s X0 Transmission drivetrain puts laser-precise electronic shifting at your fingertips, plus a durable derailleur design that stands up to trail abuse.

• 

  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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Frameset

Frame

Blackthorn 145 Carbon

Color

Coffee Black / Sage

Suspension Fork

RockShox Lyric Ultimate, 160mm

Rear Shock

RockShox Super Deluxe Ultimate

Components

Headset

FSA Orbit 1.5E ZS NO.57E

Seatpost

TranzX REVERSE w/ GL Stealth MMX Lever, SM: 160mm travel; MD: 180mm travel; LG–XL: 210mm travel

Stem

Aluminum CNC

Grips/Bar Tape

WTB Wavelength Lock-On

Saddle

WTB Solano, Medium, Steel SL, Fusion Form

Handlebar

Salsa Guide Carbon

Drivetrain

Front Derailleur

N/A

Rear Derailleur

SRAM X0 Eagle AXS Transmission

Cassette

SRAM X0 Eagle Transmission, 10–52t, 12-speed

Chain

SRAM X0 Eagle Transmission Flattop

Crankset

SRAM X0 Eagle, 30t w/ MRP 1x iO SL ISCG-05 composite bashguard

Shifter

SRAM AXS Pod controller, Right, w/ MatchMaker X Clamp

Brake Levers

SRAM Maven Ultimate Stealth

Brake Calipers

SRAM Maven Ultimate Stealth

Bottom Bracket

SRAM DUB BSA 73mm MTB Wide

Rotors

SRAM HS2 (6-bolt, 200mm front and rear)

Wheels

Front Tire

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

Rear Tire

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

Front Hub

WTB Solano, Medium, Steel SL, Fusion Form

Rear Hub

WTB Frequency 12 x 148mm

Spoke

Double butted, black

Rim

WTB CZR Carbon i30, 28h

*Specifications are subject to change without notice

 

Geometry

 

Size	Small	Medium	Large	X-Large
A. Effective Top Tube	589.0- 590.0	611.0- 612.0	633.0- 634.0	655.0- 656.0
B. Stand Over	746.0- 743.0	746.0- 743.0	747.0- 743.0	747.0- 743.0
C. Reach	452.0- 449.0	472.0- 469.0	492.0- 489.0	512.0- 509.0
D. Stack	612.0- 615.0	621.0- 624.0	630.0- 633.0	639.0- 642.0
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	63.9 - 63.6	63.9 - 63.6	63.9 - 63.6	63.9 - 63.6
H. Seat Tube Angle	77.4 - 77.1	77.4 - 77.1	77.4 - 77.1	77.4 - 77.1
I. BB Drop	25.0- 30.0	25.0- 30.0	25.0- 30.0	25.0- 30.0
J. BB Height	351.0- 346.0	351.0- 346.0	351.0- 346.0	351.0- 346.0
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	1219.0- 1220.0	1243.0- 1244.0	1268.0- 1269.0	1292.0- 1293.0
Crank Arm Length	165.0	165.0	170.0	170.0
Handlebar Width	760.0	800.0	800.0	800.0
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 Sizes55–63.5mm (2.2–2.5")
• Alternate Wheel/Tire Sizes63–70mm (2.5–27.75")
• Max Tire Outer Diameter Frame: 29 x 2.5"
  Fork: Max Tire Diameter: 732 mm / Max Tire Width: 81mm
• Frame ConstructionBlackthorn 145 Carbon
• Suspension Fork Length (Travel)160mm travel
• Fork Offset44mm
• Axle to Crown573mm
• Rear Spacing12 x 148mm
• Rear Axle Size12 x 188mm, TP=1.0, TL=20
• Front Brake (Rotor)74mm Postmount (180-220mm rotor)
• Headset - UpperZS44/28.6
• Headset - LowerZS56/40
• Rear Shock Size210 x 55mm
• Shock Mount, ForeØ10 x 30mm
• Front Spacing15 x 110mm
• Front Axle SizeMaxle Stealth: 15 x 158mm, TP=M15 x 1.5, TL=9mm
• Steerer Tube1.125–1.5" Tapered
• Crown Race59mm
• SeatpostØ30.9mm
• Dropper Post CompatibleYes (internal)
• Seatpost ClampØ35.4mm
• Max Post InsertionSM: 215mm; MD: 240mm; LG: 265mm; XL: 290mm
• Derailluer HangerSRAM UDH
• Bottom Bracket73mm BSA
• Crankset (Max Ring)34t (55mm)
• Accessory MountsTop Tube (top side) Accessory Mounts, one
• Bottle MountsOne full size bottle
• Fork MountsNone
• Front Fender MountsNone
• Rear Fender MountsNone