Cutthroat C GRX 810 2x
Cutthroat C GRX 810 2x
Cutthroat C GRX 810 2x is an immensely capable carbon bikepacking bike, designed and built to be a tour de force on the Tour Divide. Cutthroat’s lightweight carbon frame with Class 5™ VRS offers a finely tuned blend of stiffness for pedaling efficiency and compliance for all-day comfort. Cutthroat’s drop-bar mountain bike geometry is stable when picking your way down steep, loose descents but aggressive enough for enduring a full day of headwinds. Ample cargo mounts add versatility to the way you pack. Shimano’s refined GRX 810 2x drivetrain delivers effortless shifting and braking and a wide gear range so you can focus on the view.
Share
Warning for Residents of California
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.



Bike Key Features
-
On-Bike Storage
View More- Adventures require gear and riders should get to choose whether they carry it on their bike or on their body
-
Class 5 VRS
View More- Comfort equates to speed and distance over rough terrain
- Rider benefit is inherent to the design
-
Frame Protection
View More- 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.
Product Details
Build Kit
Frameset
Frame
Cutthroat Carbon
Color
Tan
Fork
Cutthroat
Rear Shock
N/A
Components
Headset
Cane Creek 40
Seatpost
Salsa Guide
Stem
Salsa Guide
Grips/Bar Tape
Anti-Slip Silicone Tape
Saddle
WTB SL8 Medium Steel SL
Handlebar
Zoom DR-AL-199BTFOV
Drivetrain
Front Derailleur
Shimano GRX RX810
Rear Derailleur
Shimano GRX RX810
Cassette
Shimano HG700 11–34t, 11-speed
Chain
Shimano HG601
Crankset
Race Face Aeffect-R, Easton 46/30t chainrings
Shifter
Shimano GRX RX810
Brake Calipers
Shimano GRX RX810
Rotors
Shimano RT70 rotors (Center Lock, 160 mm)
Wheels
Front Wheel
Shimano Deore XT 15 x 110 mm hub, WTB ST i25 rim, 32h
Rear Wheel
Shimano Deore XT 12 x 148 mm hub, WTB ST i25 rim, 32h
Front Tire
Teravail Sparwood 29 x 2.2", 60 tpi, tubeless compatible, Durable casing
Rear Tire
Teravail Sparwood 29 x 2.2", 60 tpi, tubeless compatible, Durable casing
Weight
Complete Bike
24 lb 3 oz (56 cm frame)
Geometry

Size | 52cm | 54cm | 56cm | 58cm | 60cm |
---|---|---|---|---|---|
A. Effective Top Tube | 520.0 | 540.0 | 560.0 | 580.0 | 600.0 |
B. Stand Over | 700.44 | 741.72 | 810.51 | 851.75 | 874.22 |
C. Reach | 357.77 | 372.91 | 385.28 | 395.13 | 406.36 |
D. Stack | 584.98 | 592.45 | 619.53 | 644.73 | 664.34 |
E. Total Seat Tube Length | 355.6 | 419.1 | 508.0 | 558.8 | 584.2 |
F. Headtube Length | 90.0 | 98.0 | 127.0 | 154.0 | 175.0 |
G. Headtube Angle |
69.0
|
69.0
|
69.0
|
69.0
|
69.0
|
H. Seat Tube Angle |
74.5
|
74.25
|
74.25
|
74.0
|
73.75
|
I. BB Drop | 70.0 | 70.0 | 70.0 | 70.0 | 70.0 |
K. Chainstay Length | 445.0 | 445.0 | 445.0 | 445.0 | 445.0 |
L. Fork Length Axle to Crown | 483.0 | 483.0 | 483.0 | 483.0 | 483.0 |
M. Fork Offset | 51.0 | 51.0 | 51.0 | 51.0 | 51.0 |
N. Wheelbase | 1049.54 | 1067.55 | 1090.31 | 1109.83 | 1128.6 |
Crank Arm Length | 170.0 | 170.0 | 175.0 | 175.0 | 175.0 |
Handlebar Width | 44.0 | 46.0 | 46.0 | 46.0 | 46.0 |
Recommended Rider Height | 154.0 - 168.0 | 168.0 - 175.0 | 173.0 - 185.0 | 183.0 - 193.0 | 190.0 |
Stem Length | 60.0 | 70.0 | 80.0 | 80.0 | 90.0 |
Measurements based on:
- an 483mm AC x 51mm offset fork which is equivalent to an average 100mm 29" suspension fork at 25% sag
- a 29" x 2.2" tire measuring 740mm in diameter
- Standover for all sizes is measured vertically to top of toptube from a position 50mm forward of BB center
Frame Specs
- Design Wheel/Tire Sizes 29 x 2.25" (29 x 2.4" Max) (Some front derailleurs may reduce tire clearance. Check manufacturer’s specifications to confirm clearance before installing.)
- Suspension Fork Length (Travel) 506 mm (100 mm Travel)
- Rigid Fork Length 483 mm
- Fork Offset 51 mm
- Rear Spacing 148 x 12 mm Thru-axle
- Rear Axle Size Ø12 x 174, TP=1.5, TL=20
- Front Brake (Rotor) Flat mount (160–180 mm), flat mount frame standard (35 mm thickness), 42 mm bolt length
- Headset - Upper IS41
- Headset - Lower IS52
- Front Spacing 110 x 15 mm Thru-axle
- Seatpost 27.2 mm
- Dropper Post Compatible Internal Dropper Post Routing: 1x mechanical drivetrain. Route the dropper post cable through the drive side of the down tube. Di2 drivetrains: Mount the Di2 battery in the seatpost, then route the dropper post cable through the drive side of the downtube; External Dropper Post Routing: 1x and 2x mechanical and Di2 drivetrains: Route the dropper post cable through the dynamo rear light holes on the non-drive side of the top tube.
- Seatpost Clamp 32.0 mm
- Front Derailleur Type Road, braze-on, 2x, bottom-pull
- Derailluer Hanger QBP #FS2322
- Bottom Bracket Press Fit BB92, 41 x 92 mm
- Crankset (Max Ring) 1x MTN Boost: 40t Max; 2x RD Boost outer ring: 46–50t, inner ring: 30–36t *Oval chainrings subtract 2t from max*
- Accessory Mounts Front Rack Mounts: Yes, lowrider compatible. Salsa Down Under rack recommended; Rear Rack Mounts: Yes, Salsa Rack Lock seatpost collar required. Salsa Wanderlust Rack recommended. Salsa Bent Rack Struts (part #RK8030) required for installation on 58 cm and 60 cm frames. Not compatible with Salsa Wanderlust HD Rack; Under Downtube Mount: Yes, two pair; Top Tube Mounts: Yes, compatible with Salsa Top Tube bag.
- Bottle Mounts Frames up to 54cm: 2 in main triangle. Frames 56cm and larger: 3 in main triangle.
- Fork Mounts Yes, one set of Three-Pack mounts on each fork leg
- Rear Fender Mounts n/a
Supportive Documents
Additional Features
Cutthroat Carbon Fork
With trail-taming compliance and abrasion-resistant plates in high-wear areas, the Cutthroat Carbon fork is designed for the rigors of rides that cover multiple road surfaces in unpredictable conditions
Class 5 VRS
The Class 5™ Vibration Reduction System revolves around seatstays with a tall, thin, vertically-oriented profile that promotes vertical compliance by allowing the seatstays to "flex" outwards on impacts. Horizontally-oriented chainstays work to resist torque and maintain a laterally stiff rear end. The lack of seatstay and chainstay bridges allows the full length of the stays to contribute to flexibility. A rear thru-axle delivers precise tracking while allowing the seatstays to provide incredible compliance
Interior Junction Control Molding Technology
We use interior molds at all of the main front triangle junctions during layup and curing. This allows for precise control of wall thickness and inner-wall smoothness in these areas. This process increases compaction and reduces voids and wrinkles in critical high-stress zones. The end result is a top-quality carbon frame that delivers consistent high performance
Cutthroat Geometry
Our drop bar mountain bike geometry features a 69° head tube angle for a long wheelbase that provides supreme stability over long days on any surface. 445 mm chainstays with Class 5 VRS will get you through everything from remote two-track gravel roads to technical singletrack trails, with the efficiency and comfort that endurance riders need to keep at it day after day. Cutthroat is designed for optimized fit with the Salsa Cowchipper or Woodchipper Bars
Tour Divide-Inspired Features
Designed for maximum frame bag volume on every size. Stay hydrated with room for three bottles on 54–60 cm frames (two bottles on 52 cm frames). The top tube bag mount makes mid-ride refueling easy, and the two Three-Pack mounts on the fork offer extra capacity for gear or water. The Cutthroat carbon fork has internal wire routing for dynamo hub lighting systems. Abrasion-resistant plates reduce frame and fork wear cause by mud and debris
Massive Tire and Mud Clearance
Fits 29 x 2.4" tires, plus the mud you are likely to encounter in multi-day endurance races (and abrasion-resistant plates on the fork minimize the damage that mud can cause)
Road Boost Drivetrain
2x mechanical-compatible using Race Face mountain boost cranks and Easton direct-mount chainrings (max 50/34t, complete bikes ship with 46/30t) and a road drivetrain in all other areas
Cutthroat Direct-Mount Frame Pack
This pack mounts to the frame via thumb screws for tool-free attachment and removal. This also creates a streamlined look and prevents wear from strap rub. Made from waterproof fabrics and water-resistant construction, the Cutthroat Direct-Mount Frame Pack comes in five sizes to match Cutthroat frame sizing perfectly
Multiple Bottle and Cargo Carrying Options
This pack mounts to the frame via thumb screws for tool-free attachment and removal. This also creates a streamlined look and prevents wear from strap rub. Made from waterproof fabrics and water-resistant construction, the Cutthroat Direct-Mount Frame Pack comes in five sizes to match Cutthroat frame sizing perfectly
Rear Rack Compatible
Accommodates the Salsa Wanderlust Rack (requires the Salsa Rack-Lock seatpost collar). Salsa Bent Rack Struts (part #RK8030) required for installation on 58 cm and 60 cm frames. Cutthroat V2 is not compatible with the Salsa Wanderlust HD Rack.
FAQ
Can I run 27.5" (650b) rims and tires on this frameset?
No, you cannot. That wheel size is significantly smaller than the 29er wheels the bike is designed for.
Can I run 29+ rims and tires on this frameset?
No, you cannot.
Can I run flat bars on my Cutthroat?
Yes, but it is important to keep in mind that the Cutthroat is designed specifically as a drop bar mountain bike. Switching to a flat bar essentially results in a very short toptube length, compared to how a traditional flat bar mountain bike would be designed.
Can I install a rack on my Cutthroat?
Yes. We recommend the Salsa Wanderlust Rack. You will need a Salsa Rack Lock seatpost collar. Salsa Bent Rack Struts (part #RK8030) are required for installation on 58 cm and 60 cm frames. The Salsa Wanderlust HD Rack is not compatible with Cutthroat V2.
Can I use a suspension fork on this frame?
Yes, this frame was designed and tested for use with a suspension fork with an axle-to-crown length up to 506mm (typically 100mm of travel). Check the fork manufacturer’s specifications to ensure the model and travel combination you intend to use is equal to or less than this length. Using a longer length fork will void the frame warranty and could result in frame failure. Forks with 51mm offset are recommended.
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?
ViewWarranty
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.