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MSRP | $4,199 | $6,199 | $999 | $3,999 |
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Where to Buy | — $1 At | $6,199 At Rocky Mountain | — $1 At | $3,999 At Mike’s Bikes |
Category | Fat | Fat, E-Bike | Fat | Fat |
Weight | 54.7 lbs | 29.9 lbs | ||
| Titanium | Aluminum | Aluminum | Carbon | |
Fork | Carbon | Carbon | Aluminum | Carbon |
Wheels | Aluminum | Aluminum | Aluminum | Aluminum |
| 26″ | 27.5″ | 26″ | 27.5″ | |
Brakes | Hydraulic Disc | Hydraulic Disc | Mechanical Disc | Hydraulic Disc |
| Dyname 700W 108Nm mid-drive | ||||
| 720Wh | ||||
Groupset | NX, Race Face | microSHIFT Advent X, Race Face | Shimano | XT, Race Face |
Drivetrain | 1 × 11 | 1 × 10 | 1 × 9 | 1 × 12 |
Brand Site |
Based on frame geometry and build specs.
Frame | FAT Bike Titanium V4 3AL 2.5V BB Standard: BSA, 100mm, Threaded | FORM™ Alloy | Press Fit BB |Integrated Display | Internal Cable Routing | 197mm Rear Spacing | Tapered Zerostack Headtube | Dropper Post Compatible. Rear Triangle BB Standard: BSA, 100mm, Threaded | 6061 Aluminum w/ integrated headset BB Standard: BSA, 100mm, Threaded | Beargrease Carbon BB Standard: BSA, 100mm, Threaded |
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Fork | RSD Custom 490mm Carbon w/15x150mm Axle 51mm Offset with Black Decals | Rocky Mountain Carbon Fat | Alloy A-Head Fat Bike Fork | Kingpin Carbon Deluxe |
Shock | N/A | |||
Bottom Bracket | : Race Face 100mm BSA | Race Face BB124 24mm | 100mm BSA threaded | |
Headset | Cane Creek ZS44/28.6 Top & EC44/40 Bottom | FSA Orbit NO.57E ZS44|56 | Sealed 36°x45° Bearings | 30.2mm x 41mm x 7.1mm Upper | 40mm x 51.8mm x 7.5mm Lower | 1.5" Crown Race | Cane Creek 40 Series | |
Stem | FSA Comet 35 50mm | Rocky Mountain 35 AM | 5° Rise | All Sizes = 40mm | 70mm w/ 31.8mm oversized clamp | Salsa Guide Trail 35.0 |
Handlebar | Race Face Aeffect R 35 780mm | Rocky Mountain AM | 780mm Width | 25mm Rise | 9° Backsweep | 5° Upsweep | 35 Clamp | 700mm oversized bar w/ 15mm rise | Race Face Aeffect R 35, 780 mm, 20 mm rise |
Saddle | Cionlli 142mm | WTB Volt 142 | WTB Volt M Steel SL, 142 x 265 mm | |
Seatpost | Rocky Mountain 30.9mm | TranzX YSI05GL, XS–SM: 125 mm; MD–XL: 150 mm | ||
Pedals | Platform Pedals Included | |||
Grips | Lizard Skin Northshore | Rocky Mountain Lock On Foam |
Rear Derailleur | : SRAM NX Type 2 11spd | MicroShift Advent X 10spd With Clutch | Shimano 9 Speed (1x9 Drive Train) | Shimano XT M8100-SGS |
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Front Derailleur | N/A | |||
Crank | Race Face 175mm CINCH DM | Race Face Ride Cinch 34T | 24mm Spindle | Crank Length: SM-MD = 170mm | LG-XL = 175MM | 170mm w/ 28t Chainring | Race Face Turbine, 30t |
Shifters | : SRAM NX 11spd | MicroShift Advent X 10spd E | Shimano XT M8100 | |
Cassette | : SRAM PG-1170 11/42T 11spd | MicroShift CS-EH104 11-48T | 11-36t (9-speed) | Shimano SLX M7100 10–51t, 12-speed |
Chain | : KMC 11SL | KMC X10-1 | Shimano SLX M7100 | |
Brakes | : Avid Level T Hydraulic | SRAM Level 2 Piston | Resin Pads | Tektro 2-Finger Alloy | SRAM Level TL brakes, SRAM CenterLine rotors (6-bolt, 180 mm front, 160 mm rear) |
Rims | Front: Sun Ringle Mulefüt V2 Fat 26x80mm Front 15x150mm, Rear: : Sun Ringle Mulefüt V2 Fat 26x80mm Rear 12x197mm | WTB KOM Light i76 | TCS Tubeless | 32 H | Tubeless Ready - Tape / Valves Incl | Double-walled alloy 36h rims w/ 26 x 4.5" Kenda Juggernaut Tires (Hubs: 135 front & 190mm rear spacing) | Front: Sun Ringle SRC 15 x 150 mm hub, Mulefüt SL 80 mm rim, Rear: Sun Ringle SRC 12 x 197 mm hub, Mulefüt SL 80 mm rim |
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Spokes | DT Swiss Champion 2.0 | |||
Front Hub | Rocky Mountain Sealed 150 x 15mm | |||
Rear Hub | DT Swiss 350 197mm | 36T Star-Ratchet | |||
Tires | Maxxis Minion FBF and FBR 4.8 | F: VeeTire Snow Avalanche 27.5 x 4.5 120 TPI (Studs Incl. Not Installed) // R: VeeTire Snow Avalanche 27.5 x 4.5 120 TPI (Studs Incl. Not Installed) | 26x4.5" | 45NRTH Vanhelga 27.5 x 4.0" tubeless-ready |
Disc Rotors | Avid 180mm CenterLine |
Motor | Dyname 4.0 Mountain Bike Drive | 700W Max Power | 250W Nominal Power | 108Nm | Rocky Mountain Micro Remote | Low RPM - High Efficiency class 1 eMTB System | Designed in Canada | |||
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Battery | Recycling Program: ♻️ Call2Recycle | 720 Wh Removable Integrated Li-Ion | 100% Charged in 3:55 (4A) / 7:35 (2A) | 80% Charged in 2:55 (4A) / 6:05 (2A) Recycling Program: ♻️ Call2Recycle | Recycling Program: ♻️ Call2Recycle | Recycling Program: ♻️ Call2Recycle |
Remote | Rocky Mountain Micro Remote | |||
Display | Rocky Mountain Jumbotron | Drive System Customization | Battery & Assist Level | Trip | Speed | Cadence | Top Tube Integration | |||
Charger | Rocky Mountain Powerplay Charger V1| 2A | 48V | Higo Deep Socket Connector | Overtimepack Compatible (Dyname 4) |
Racks | Designed for use with the Salsa Alternator Rack 170/177 (Salsa Rack-Lock seatpost collar required) |
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