Salsa Blackborow DS

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OFF-ROAD EXPLORATION / ULTIMATE FLOTATION / OFF-ROAD EXPEDITION

Blackborow DS is designed for off-the-beaten-path fatbike exploration. Our thru-axle equipped 6066 aluminum Blackborow frame and Bearpaw 150 fork gets loaded up with flotation maximizing 100mm-wide Surly Clown Shoe rims and premium 4.8" folding bead Surly Lou tires. Power those fat tires with a dinglespeed drivetrain. Dinglespeed? Think double singlespeed, in this case, 30 x 18t and 26 x 22t. The larger gear is great for cruising into town for supplies, while the lower gear will come in handy on singletrack or when the conditions get truly horrific. Don't let "dinglespeed" fool you into thinking downgraded spec. Blackborow DS features the best-in-class Surly OD crankset with wider spaced bearings for better distribution of crankarm forces and longer bearing life. If Blackborow DS has you thinking soft surface beach riding, you'll appreciate the fact that the cogs, chainrings, chainring bolts and spokes are stainless steel, and that we've spec'd a KMC RustBuster chain.

Frameset

Frame Blackborow, AL6066
Color Forest Service Green
Fork Salsa Bearpaw, 15 x 150mm
Rear Shock nil

Drivetrain

Front Der nil
Rear Der nil
Cassette Stainless 18/22t cogs, alloy spacer kit
Chain KMC Z99 Rustbuster
Crankset Surly OD, 26/30t Stainless for dingle

Components

Headset Cane Creek 10 ZS44/56
Stem Salsa Guide
Handlebar Salsa Salt Flat 2, 750mm
Grips Salsa Backcountry Lock-On
Shifter nil
Front Brake SRAM BB7S mtn w/ stainless hardware
Rear Brake SRAM BB7S mtn w/ stainless hardware
Brake Lever SRAM FR5
Rotors SRAM G2, 160mm front/rear
Seatpost Truvativ T20
Saddle WTB Pure V Comp

Wheels

Front Hub Salsa Fat Conversion, 15 x 150mm
Rear Hub Salsa Fat Conversion, 12 x 197mm
Spokes Stainless, butted
Rims Surly Clown Shoe w/ holes
Tires Surly Lou 26 x 4.8", 120tpi, folding, front and rear

Weight

Complete Bike Weight 31 lb 9 oz for size Medium

Component Sizing

Size Small X-Small Medium Large X-Large
Stem Length 70mm 60mm 80mm 90mm 100mm
Crank Length 170mm 170mm 175mm 175mm 175mm
Handlebar Width 750mm 750mm 750mm 750mm 750mm
Seatpost Offset 0 0 0 0 0

* Specification and pricing subject to change without notice

Features

Blackborow Geometry
Blackborow's geometry is maximized for riding on tough, unpredictable surfaces and features incredible standover clearance. Designed specifically around massive 5"-width tires on 100mm rims, Blackborow provides extreme floatation in soft conditions like snow and sand, and also offers incredible traction and stability on any surface. Blackborow also features Alternator dropouts, which increase the bike's versatility and setup options, and allows for an adjustable wheelbase
6066-T6 Aluminum Tubeset
Top-shelf, double and triple-butted, heat-treated 6066 Aluminum tubing. Formed and shaped for optimized and appropriate stiffness, strength, and weight. Also offers excellent corrosion resistance
Dropped Toptube Layout
Seat tube lengths are increased one inch per size to facilitate a dropped toptube placement at the seat tube with a jump brace. Combined with a slightly higher bottom bracket (than Mukluk and Beargrease) this creates a bike with improved ground clearance and reduced pedal strikes when riding off-trail. This layout also results in extremely low standover heights
Versatile Fork Compatibility
Designed around Salsa's 51mm-offset Bearpaw and Makwa fork models. Blackborow is also fully compatible with RockShox Bluto suspension fork set at 100mm travel. This versatility covers everything from singletrack riding to multi-day snow races and beach expeditions
197 X 12mm Thru-Axle Rear Spacing
Equivalent to 190mm rear quick-release spacing, the 197 x 12 thru-axle design adds convenient hub catches that make wheel removal/installation easier & tool free; creates an appropriately secure and stiff wheel connection to the frame at this extreme hub width
Stainless Steel Dinglespeed Setup
Double singlespeed setup with matching teeth count (26 x 22t & 30 x 18t) for quick gear change. One gear for spinning to town, one gear for taking on singletrack. Stainless chainrings, bolts, cogs, and KMC RustBuster chain for longer component life in nasty conditions
Alternator Dropouts
Allows wheelbase changes and chain tensioning. No disc brake adjustment needed when setting wheel position. Vertical dropout for easy wheel installation/removal. Proven in the NUE Series and in the Tour Divide. Alternator Dropouts Instructions
Set-It-And-Forget-It Singlespeed Setup
The Alternator dropouts swinging design and set screws offer quick setup and tensioning. Vertical wheel entry means no re-tensioning or brake adjustments are necessary after a wheel change. Slip-free and creak-free performance
Replaceable/Serviceable Hardware
Alternator swing plates are all replaceable, and all the bolt hardware is standard-size metric socket head cap screws (also available in a replacement kit)
Shaped Chainstays & Seatstays
Provide maximum heel clearance in winter boots
PressFit 41 132mm Offset Bottom Bracket
Designed specifically for the Surly OD Moonlander crankset, which is the only production ~76mm chainline crankset to feature widest bearing placement, thereby increasing bottom bracket durability, optimized spindle strength, and bearing life
Direct Mount Front Derailleur Adaptor
Problem Solvers Direct Mount Adaptor adds flexibility to drivetrain setup and clean 1x builds
31.6mm Seatpost
Allows use of a dropper seatposts for getting rad, negotiating tough terrain, and facilitating dabbing, starting, and stopping in difficult conditions
Full Length Cable Routing
Improved performance in poor conditions
Rear Rack Friendly
Designed for use with the Salsa Alternator 190mm Rack
Waterbottle Bosses
Frame accepts 3 waterbottle cages on sizes SM - XL; 2 on size XS; Fork accepts 2 waterbottle cages via Three-Pack bosses on each fork leg
Bearpaw 150 Fork Included
Custom-designed, tapered, aluminum fork with 15 x 150mm thru-axle dropouts (axle included) Front-of-leg Three Pack bosses. 51mm I.S. disc brake mount
Bluto-Compatible Front Wheel
Stock wheel features 15 x 150mm thru-axle Salsa Fat Conversion Hub, which can be transferred directly to RockShox Bluto suspension fork
Fork Blade Three-Pack Bosses
Front-of-leg Three-Pack waterbottle bosses for Anything Cages or hi/low placement of waterbottle cages

Specifications

Frame 2015 Blackborow Aluminum
Wheelsize 26" fatbike (closer to 29" in diameter in reality)
Tire Clearance Designed for 26 x 5.0" tires
Fork Salsa Bearpaw 150 Fork included
Headset-Upper 1-1/8" Zero Stack (ZS44/28.6)
Headset-Lower For Tapered: ZS56/40
Seatpost 31.6mm
Seat Collar 35.0mm. Salsa Lip-Lock included
Front Derailleur Problem Solvers Direct Mount clamp included, High Direct Mount Front Derailleur
Bottom Bracket PressFit 41 (132mm offset width)
Crankset Fatbike 1x or 2x compatible; Max chainring sizes 1x (34T), 2x (36/24T)
Front Brake 51mm I.S., minimum rotor size 160mm, maximum rotor size 180mm
Rear Brake 51mm I.S., minimum rotor size 160mm, maximum rotor size 180mm
Front Spacing 150x15mm TA, front rotor/brake offset
Rear Spacing Alternator Dropouts - Rear Thru-Axle 12 x 197mm or 190mm x 10mm QR
Bottle Mounts 5 per frameset (3 frame, 2 fork) for M - XL, 4 per frameset for S & XS (2 frame, 2 fork)
Derailleur Hanger Replaceable Alternator plates. Driveside Geared TP=1.5 FS1374, Driveside SS TP=1.5 FS1376
Cable Routing Full housing, under toptube
Frame Weight TBD
Fork Weight w/Uncut Steerer TBD
Color Forest Service Green

Size Small X-Small Medium Large X-Large
Recommended Rider Height 5'5" - 5'9" 5'2" - 5'6" 5'8" - 6'0" 5'11" - 6-3" 6'2" - UP
A. Toptube Effective 580mm 565mm 605mm 625mm 640mm
B. Seat Tube Length 406.0mm 406.0mm 457.0mm 508.0mm 559.0mm
C. Headtube Angle 69.5° 69.5° 69.5° 69.5° 69.5°
D. Seat Tube Angle 73° 73° 73° 73° 73°
E. BB Drop 63mm 63mm 63mm 63mm 63mm
F. Chainstay Length 440 - 457mm 440 - 457mm 440 - 457mm 440 - 457mm 440 - 457mm
G. Headtube Length 100mm 100mm 110mm 120mm 130mm
H. Fork Length 483mm 483mm 483mm 483mm 483mm
J. Fork Offset 51mm 51mm 51mm 51mm 51mm
K. Wheelbase 1086.8 - 1103.8mm 1071.8 - 1088.8mm 1112.4 - 1129.4mm 1133.0 - 1150.0mm 1148.7 - 1165.7mm
M. Stack 595.0mm 595.0mm 604.4mm 613.8mm 623.1mm
N. Reach 398.1mm 383.1mm 420.2mm 437.4mm 449.5mm
P. Standover 686.7mm 686.7mm 724.2mm 764.2mm 780.6mm

Measurements based on:

  • a Salsa Bearpaw fork which is equivalent to RockShox Bluto 100mm at 25% sag.
  • a 26 x 4.8" tire measuring 760mm in diameter.
  • standover (P) measured vertically from the top of the toptube/brace intersection
Can I run 29-plus rims and tires on this frameset?
Yes, you can, 29+ and 26 x 5.0" tires have very similar diameters.
Can I run 4.0" tires on this bike?
The frame geometry is optimized around the diameter of a 5.0" tire, but can easily accept smaller tires. Keep in mind the difference in diameter of the smaller tire will lower the bottom bracket and decrease mechanical trail slightly, effectively quickening the steering feel.
Can I use a suspension fork on this frame?
Yes, this frame was designed and tested for use with a suspension fork with a static axle-to-crown length up to 511mm (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 strongly recommended, but 45mm offset is also acceptable (increases mechanical trail by 6mm).
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.
How do I take care of the Alternator dropouts?
Periodically, we recommend that you remove the bolts, and clean the dirt and grime off the hardware and the frame surfaces. Then, lightly regrease the threaded parts and re-assemble.
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.
"On the short loop we were riding I liked how it handled through the twisties and it was confidence inspiring enough on the fast stuff that I came away from the ride thinking this was my favorite bike of the day."
-Fat-Bike.com - July 2014