New for 2013 is the Beargrease, our fat bike designed specifically to be a lightweight racer. We took the stable handling and geometry of our popular Mukluk frameset, and paired it with very stiff and light tubing, stripped it of extra features (and weight) and created a 5.2 lbs fat frameset (28.5 lbs for a stock Medium complete bike) that is perfectly suited for attacking events like the Arrowhead 135, the Simpson Desert Classic, or simply dominating your local weekend snow series.
At the heart of the Beargrease is the frameset. The frame uses the same 6000-series EV6 Extrolite tubing found on our Spearfish and Mamasita frames. The properties of this tubing, combined with intentional shaping, as well as single, double, and triple-butted profiles, combine to create a frame that tips the scales at 3.6 lbs. A tapered headtube and triple-butted downtube mate to shaped rear stays to create a stiffer frame than our Mukluk, offering more efficient power transfer. Ride compliance is deferred to the oversized, low pressure tires. Standard vertical dropouts are used in favor of our versatile Alternator dropouts to save weight, and because trail conditions typically vary so much that most fatbike racers favor a geared drivetrain. Frame, seat, and handlebar bags dominate the light and fast edurance scene these days, and the Beargrease follows this trend; rack and fenders mounts are ommited to save precious grams. We didn't skimp on bottle mounts, knowing that local weekend racers prefer bottles for the shorter sprint events. Each frame features two bottle mounts in the front triangle (only one on XS). Beargrease receives a black anodized finish instead of paint, which also nets over 100g in weight savings.
The fork was an integral part in achieving the Beargrease design. Because ride compliance was less of a design factor for a fork intended to be used with large, low-presure tires, we are able to capitailze on what makes aluminum a great material for bikes: large diameter tubes that are very stiff and light. The heat treated 7000-series fork features a custom-designed one-piece tapered steerer tube and huge D-shaped, butted and tapered blades in a fully-welded construction (no gluing or bonding). This creates a very strong and light-weight fork, weighing in at just 720 grams (uncut), a full pound lighter than our feature-laden Enabler fork. The Beargrease fork uses the same 135mm spacing, front I.S. brake pattern, and 15.25mm (rear) disc/hub offset as the Enabler, and like the frame, will come in a Speedy Black Anodized finish. The fork is included with the Beargrease frameset, but will also be available seperately as well.
2013 Beargrease: Complete Bike MSRP $2999; Frameset Only MSRP $999
The Beargrease frame features the same low and stable geometry as our 2012 Mukluks. This makes riding in soft or loose conditions at both slow and fast speeds a little more comfortable (less twitchy), and the low standover height makes dabbing, dismounting, and re-starting easier. The only significant change we made was to reduce the headtube length a bit, and combined with the ZS tapered headset stack, puts the bars about 20mm lower, comparatively. This allows for a more aggressive riding position for those looking to hammer. For those who prefered the more upright position of the 2011 or 2012 Mukluk, 20mm of spacers and/or one of our higher angle rise stems does the trick.
The complete bike spec, like the frameset design, was chosen with the intent of yielding a lightweight and efficient fat bike. The wheels utilize Salsa Mukluk 2 hubs laced to custom color-matched Surly Holy Rolling Darryl rims and 120tpi folding-bead 45NRTH Husker Du tires. A 160mm front/140mm rear set of Avid Elixir 5 hydraulic brakes offer up a lighter setup than cable-pull discs brakes, and the DOT fluid running through the lines is rated well below 0F. The drivetrain is a mix of SRAM 10-speed X0 and X7 components. The crankset/bottom bracket featured on the Beargrease is a new and exciting product from our friends over at Ethirteen. It's a totally new, redesigned crank arm with nice look, a stiff feel, and a lightweight design thanks to their innovative spindle design. It also features new and improved BB cups/seals/bearings for better bearing life. Perhaps the coolest feature of the crankset though, is an exclusive 64/104mm BCD chainring spider co-designed with Salsa, that improves the alignment of the chainrings to the rear cassette, creating better shifting performance and eliminating tire/chain intereference (82mm rims/3.8" tires). The Beargease cockpit is made up of our Pro Moto 2 components and our new clamp-on Backcountry grips. The frame features full-length housing and under-the-toptube cable routing.
2013 Beargrease Complete Bike Spec
Frame Beargrease Aluminum
Fork Salsa Beargrease, Aluminum, Tapered
Headset Cane Creek 40 ZS44/ZS56
Stem Salsa Pro Moto 2
Handlebar Salsa Pro Moto 2 11 degree
Grips Salsa BackCountry
Shifter SRAM X.7
Front Brake Avid Elixir 5
Rear Brake Avid Elixir 5
Brake Lever Avid Elixir 5
Rotors 160mm Front/140mm Rear
Seatpost Salsa Pro Moto 2
Saddle WTB Pure V
Front Der SRAM X.7
Rear Der SRAM X.0 10-Speed
Front Hub Salsa Enabler, 32H
Rear Hub Salsa Mukluk 2, 32H
Spokes DT Swiss Competition
Rims Surly Holy Rolling Darryl
Tires 45N Husker Du 26 x 4.0", 120tpi Folding
Cassette SRAM PG-1050 11-36T
Chain KMC X10
Crankset e*thirteen w/ Shift Rings Custom for Salsa 22/36T
FAQ & Compatability
Lastly, here are some answers to questions you may have:
We're stoked on the Beargrease as another step forward in the evolution of fatbikes, and hope you are too.
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Hi, I'm Pete and I am a product development engineer for Salsa. I like all kinds of riding from commuting to dirt jumping. I think flat pedals make you a better bike handler, that the thru-axle is vastly superior to the quick-release for off-road applications, and that moving through the world on bicycle allows one to see things they might not otherwise. I suffer daily from hunger-induced anger, also known as [i]hanger[/i]. Outside of work and riding, I enjoy kiteboarding, traveling, and watching hockey.