2018 Mukluk NX1
2018 Mukluk NX1
Mukluk is our most versatile fat bike, offering the most flotation on soft surfaces and designed to excel in the wide variety of riding conditions that fat bikers face. Whether you’re methodically attempting a first route in the Northwest Territories or chasing sunlight in Moab, Mukluk can do it all.
This is an archived bike model. Explore the current range of Salsa bikes here.
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.
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Product Details
Build Kit
- Frame: Mukluk Aluminum
- Fork: Salsa Bearpaw Carbon
- Color: Black/Teal
- Rear Shock: N/A
- Front Der: N/A
- Rear Der: SRAM NX1
- Cassette: SunRace CSMS7 11-42t
- Chain: SRAM 1110
- Crankset: Truvativ Stylo 6K 30t direct-mount
- Shifter: SRAM NX1
- Brakes & Rotors: Hayes MX Comp, V-Series 160mm
- Headset: Cane Creek 15
- Stem: Salsa Guide
- Handlebar: Salsa Salt Flat (XS, SM), Salsa Rustler (MD, LG, XL)
- Grips: Salsa File Tread
- Seatpost: Salsa Guide
- Saddle: WTB Volt Sport
- Front Wheel: SUNringlé Mulefut 26 x 80mm, 15 x 150mm, tubeless-ready
- Rear Wheel: SUNringlé Mulefut 26 x 80mm, 12 x 197mm, tubeless-ready
- Tires: Maxxis Minion FBR front and rear, 26 x 4.8", 60 tpi
Frame Specs
- Design Wheel/Tire Size: 26 x 4.33" on up to 100mm rim
- Alternative Wheel/Tire Sizes: 26 x 3.8–4.8" on up to 100mm rim; 27.5 x 3.0–4.0"; 29 x 2.3–3.0"
- Rigid Fork Length: 483–486mm
- Suspension Fork Length (Travel): 511mm (100mm)
- Fork Offset: 50–51mm
- Headset-Upper: ZS44
- Headset-Lower: ZS56
- Seatpost: 31.6mm
- Seat Collar: 35.0mm
- Dropper Compatible (Routing): Yes, internal
- Front Derailleur Type: Compact 2x top-pull only
- Front Derailleur Mount: High-direct mount (54mm offset) via removable bracket (included)
- Bottom Bracket: 100mm, threaded
- Crankset (Max Ring): 75mm chainline fat bike cranks only 2x: 36/24t max; 1x: 32t max
- Rear Brake (Rotor): 51mm standard (160–180 rotors, not all calipers/adapters in this size are compatible)
- Rear Spacing: 197 x 12mm thru-axle
- Rear Axle Size: 12 x 229L, TP = 1.5, TL = 20
- Derailleur Hanger: Fixed Position - ND: FS2357, D: FS2355; Adjustable - ND: FS2353, D: FS2356
- Bottle Mounts: 2 per frame
- Accessory Mounts: 1 per frame
- Stem Clamp: Ø28.6mm
- Crown Race: Ø40mm
- Front Brake (Rotor): 74mm post mount (160–180mm)
- Front Spacing: 150 x 15mm thru-axle
- Front Thru-Axle: 15 x 198L, TP = 1.5, TL = 9
- Fork Bottle Mounts: 2 Three-Pack bosses per fork
Geometry
| XS | SM | MD | LG | XL | |
|---|---|---|---|---|---|
| Top Tube Effective Metric | 573 | 594 | 615 | 636 | 657 |
| Seat Tube Length Metric | 406 | 406 | 457 | 508 | 558 |
| Head Tube Length Metric | 100 | 110 | 120 | 130 | 140 |
| Head Tube Angle | 69 | 69 | 69 | 69 | 69 |
| Seat Tube Angle | 73 | 73 | 73 | 73 | 73 |
| BB Drop Metric | 63 | 63 | 63 | 63 | 63 |
| Chainstay Length Metric | 440–457 | 440–457 | 440–457 | 440–457 | 440–457 |
| Fork Length Metric | 483 | 483 | 483 | 483 | 483 |
| Fork Offset Metric | 51 | 51 | 51 | 51 | 51 |
| Wheelbase Metric | 1085.2 | 1107 | 1128.7 | 1150.4 | 1172.1 |
| Stack Metric | 592.7 | 602.1 | 611.4 | 620.7 | 630.1 |
| Reach Metric | 391.8 | 409.9 | 428.1 | 446.2 | 464.4 |
| Standover Metric | 684.5 | 678.1 | 719.7 | 758 | 773.9 |
| Rider Height Metric | 157–168cm | 165–175cm | 173–183cm | 180–191cm | 188–UP |
| Stem Length | 40 | 50 | 60 | 70 | 80 |
| Crank Length | 170 | 170 | 170 | 175 | 175 |
| Handlebar Width | 750mm | 750mm | 750mm | 750mm | 750mm |
| Seatpost Offset Metric | 0 | 0 | 0 | 0 | 0 |
Measurements based on:
- Rigid/100mm Sus: A Salsa Bearpaw fork which is equivalent to a 100mm Rockshox Bluto fork at 25% sag
- A 26 x 4.8" tire measuring 759mm in diameter
- Standover is measured from ground to top of toptube at forward portion of the kink
Supportive Documents
Additional Features
6066-T6 Aluminum Tubeset
Top-shelf, double and triple-butted, heat-treated 6066-T6 aluminum tubing is used throughout the frame. This 6000-series aluminum has better strength and fatigue characteristics than 6061 and 7000-series aluminums, allowing for a stronger and lighter overall frame. Additionally, the tubing is strategically shaped and formed for additional stiffness and strength optimization in key stress areas
Salsa Fat Bike Geometry
The geometry used across our entire fat bike line has remained basically unchanged since developing the Beargrease Carbon back in 2012. We’ve adapted it to all our fat bike models because it works extremely well in all conditions and use cases, whether it be riding groomed singletrack at your local trail, exploring a deserted beach, or embarking across the wild frozen expanses of Alaska in the ITI race. At its core, we use the shortest chainstay possible in conjunction with a headtube angle and fork offset that place the rider’s center of gravity further over the rear wheel. This location and combination of front and rear center is key to getting a fat bike that is stable, steers well in loose conditions, and still also feels nimble and agile despite the massive wheels and tires. For 2017, all models, regardless of 4 or 5" tire size, feature 440mm or shorter chainstay lengths! A low bottom bracket height is also key, to keep the rider’s center of gravity low, and to make dabbing and dismounting easier
Bearpaw Carbon Fork
Features a 150mm thru-axle that boosts stiffness and improves steering precision. The fork also features our Three-Pack mounts for mounting Anything Cages or water bottle cages
Alternator Dropout versatility
The Alternator dropout delivers incredible drivetrain versatility. Run singlespeed or geared, QR or thru-axle, freehub or Rohloff. Set the Alternator dropouts all the way forward for a shorter wheelbase that results in quick and nimble handling, or set back for more stability—the power is yours. See our Alternator page for more info
197 x 12mm Symmetrical Rear Spacing
Results in a strong rear wheel and frame; maintains proper chainline with crankset
Rear Wheel & Tire Options
Mukluk is designed for use with up to 26 x 4.8" fat bike tires on rims up to 100mm wide. The frame is also capable with the following wheel and tire combinations: 29 x 2.25 – 3" / 27.5 x 3.0 – 4.0"
Front Fork Wheel & Tire Options
The fork included with this frame works with the following wheel and tire combinations: 26 x 3.8 – 4.8" on up to a 100mm rim / 29 x 2.25 – 3.0" / 27.5 x 3.0 – 4.0"
100mm Threaded Bottom Bracket
Provides the widest number of crankset and Q-factor choices while providing the correct chainline
Dropper Post Compatible
Frame accommodates internal routing for a dropper post
1x & 2x Drivetrain Compatible
This frame is compatible with both 1x and 2x drivetrain setups. A removable direct mount front derailleur bracket allows for clean 1x build
Full-Length Internal Housing Cable Routing
Full-length housing improves shifting performance in poor conditions and increases use time between maintenance intervals
Multiple Bottle Cages
Accepts 3 bottles per frame
Rear Rack Compatible
Mukluk accepts our Alternator 190 Rack with the addition of a Salsa Rack-Lock seat collar
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.

