2026 Salsa Beargrease C Frameset - Black

The Beargrease carbon frameset is a lightweight chassis just begging you to build it into your speedy new trail machine. With trail-oriented geometry and an appetite for 27.5 x 4.0" tires, the Beargrease platform is nimble but sure-footed. Frame and fork cargo mounts open up the option of longer endurance rides or a bikepacking setup. Bring your favorite components to this capable fat-tire bike frame and build a groomed-snow racer, bikepacking machine, or all-season trail bike - anything is possible.

Features

On-Bike Storage

• Adventures require gear and riders should get to choose whether they carry it on their bike or on their body

Frame Specs

• Design Wheel/Tire Sizes 27.5 x 3.8" on an 82mm rim
• Alternate Wheel/Tire Sizes 26 x 3.8-4.6" on up to a 100mm rim / 27.5 x 3.0-4.0 on up to a 82mm rim / 29 x 2.25-3.0"
• Suspension Fork Length (Travel) 511mm (100mm)
• Rigid Fork Length 483-486mm
• Fork Offset 50-51mm
• Axle to Crown 483mm
• Rear Spacing 197 x 12mm thru-axle
• Rear Axle Size ø12 x 220L, TP= 1.5, TL = 20
• Rear Brake (Rotor) 74mm post (160-180mm)
• Front Brake (Rotor) 74mm post (160-203mm)
• Headset - Upper IS41
• Headset - Lower IS52
• Front Spacing 150 x 15mm thru-axle
• Front Axle Size ø15 x 198L, TP=1.5, TL=9
• Steerer Tube 28.6mm, Tapered
• Crown Race 40mm
• Seatpost ø30.9mm
• Dropper Post Compatible Yes, internal (stealth)
• Seatpost Clamp ø35.4mm
• Front Derailleur Type Not compatible
• Derailluer Hanger FS2322
• Bottom Bracket 100mm BSA threaded
• Crankset (Max Ring) Fat bike 75 chainline, 1x only (32t)
• Accessory Mounts Under Downtube Mount Pairs: 1; Top Toptube Mount Pairs: 1; Rear Rack Mounts, Lower: Yes, use Salsa Alternator Rack 170/177; Rear Rack Mounts, Upper: No, use Rack-Lock; Front Rack Mounts: 165mm Low Rider
• Bottle Mounts XS = 1, SM-XL = 2
• Front Fender Mounts Yes, shared with rack
• Rear Fender Mounts No

Additional Features

High-Modulus Carbon Fiber Frame

This material offers improved stiffness, better vibration damping, excellent durability, and weight savings compared to other frame materials

Beargrease Geometry

A long front/center, short stem, and wide bars, and 440 mm chainstays create room to move and add confidence while maneuvering on tight trails. This geometry results in a fat bike that rides like a trail bike. It is stable, steers well in loose conditions, and remains nimble and agile despite the massive wheels and tires. The low bottom bracket height is also key to keeping the rider's center of gravity low, which makes dabbing, dismounting, and remounting easier

27.5 x 4" Wheel & Tire Size

Beargrease rolls on 27.5 x 3.8" wheels and tires. For groomed snow or dirt, this diameter provides increased rollover, a longer contact patch, and the flotation of a 3.8" tire without the added rolling resistance when compared to a 26" wheel

Kingpin Deluxe Fork

Featuring a full carbon design, the Kingpin Deluxe Fork is lightweight and durable, and features an amazing array of accessory mounts to help you make the most of your Beargrease: Dual sets of Three-Pack mounts on each leg accept bottle cages or our Anything Cage accessory / Lowrider mounts work with our Down Under front rack for a traditional touring setup / Internal dynamo hub wire routing keeps the front end clean for those upgrading to dyno hubs.

Front Wheel & Tire Options

The fork included with this frame works with the following wheel and tire combinations: 26 x 3.8-5" on up to a 100 mm rim / 27.5 x 3.0-4.0" on an 80 mm rim / 29 x 2.3-3.0"" on a 50 mm rim

Rear Wheel & Tire Options

The Beargrease Carbon frame is compatible with the following wheel, tire, and rim sizes: 26 x 4.3-4.6" on up to a 100 mm rim / 27.5 x 3.0-4.0" on an 80 mm rim / 29 x 2.3-3.0" on a 50 mm rim

Optimal Drivetrain Design with Narrow Q-Factor Cranks

The Beargrease Carbon frame is designed for the best of all drivetrain performance while maintaining narrow fat bike crank arms for less knee stress: 197 mm symmetrical rear end for modern rim and tire fit / 100 mm threaded bottom bracket / Rider-friendly narrow Q-factor cranks / 1x optimized frame design / Up to a 32t max chainring

Internal Sleeved Cable Routing

The Beargrease Carbon frame features fully sleeved, internal cable routing. This improves shifting performance in poor conditions, increases time between maintenance intervals, and makes running new cables and housing a breeze

Dropper Post Compatible with Stealth Routing

Compatible with 30.9 mm dropper posts for true trail bike riding experiences

Rear Rack Compatible

Designed for use with the Salsa Alternator 170177 Rear Rack, with the addition of a Salsa Rack-Lock seat collar

Multiple Accessory Frame Mounts

Beargrease features numerous accessory mounts: Top tube mounts accommodate K-Edge Top Tube Mount for bike computers or the Salsa EXP Series Direct Mount Top Tube Bag / 2 water bottle mounts inside frame triangle / 1 accessory mount underneath downtube

Click for Geometrical Chart

Click for Build Kit

?? 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.