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Surly: Big Dummy - 2017

Surly

$2,099.00
Condition:
New
Quantity:

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Product Description

Surly: Big Dummy - 2017

Big Dummy is a long-tail cargo bike, which means that not only can you haul a serious amount of cargo, different accessories can be added to your Big Dummy frame and deck depending on what you want to carry. Being a dedicated single-piece frame, instead of an add-on to an existing bike, it’s stiffer and resistant to torsional flex, which provides a better ride and longer lasting frame than long-tail add-ons. 

Like all Surly frames, it’s made of their size specific, 4130 CroMoly steel – a tube set engineered for cargo that sports lots of little touches that you’ve come to love in a Surly like clearance for big tires and the use of common component sizes. Figure on being able to carry about 200 pounds (90kg) of cargo. The load weight, and how it’s loaded, will affect the handling somewhat. Also, plan on using gears, especially as cargo weight increases. This may seem obvious, but as you get comfy with it, you will use your full range of gears as never before.

The parts kit is good quality, and suitable to loaded as well as unloaded riding. It’s got a 3x10 drivetrain, Avid BB7 disc brakes, quality Shimano Deore hubs, and 26x2.3" Kenda Kiniption tires. They’ve outfitted it with Surly-designed bags, deck, rails and Dummy Rail Collars; everything you need for the majority of stuff you might carry, like groceries, shovels, bags of charcoal or mulch, guitars, lamps, mannequins, whatever. Bags, deck, rails, and rail collars are all designed to improve on previous offerings and work together to make sure your stuff is transported with safety and stability. It’s an unbending interface, which when you’re carrying lots of cargo, is a good thing to have. Get creative, and get hauling.

If you intend to carry a passenger on your Big Dummy, Surly requires use of their Dummy Rail Collars. These provide a secondary retention system for the rack, as well as stiffen the rack system. These are included with MY17 Big Dummy bikes and frames, as well as available AM for older Big Dummy bikes and frames [compatible with all generations of Big Dummy bikes/frames]. In addition, a stoker handlebar set up, found on tandem bicycles, is recommended as well. Make sure to check with seat post manufacturer for stoker handlebar compatibility.

If you are planning to carry a child on your Big Dummy, Surly recommends the use of a child seat. They’ve tested the Maxxi Yepp seat. They make an adaptor that that allows their seat to mount onto our deck. It works well with the Big Dummy. At this time other child seats are not recommended and will void your warranty. They are testing other options. For the most up to date compatibility/options, check http://www.surlybikes.com/safety

Note: keep in mind Big Dummy weight limits when carrying a passenger.

 

SPECIFICATIONS

Complete bike spec subject to change

Frameset

Frame
Surly Big Dummy, Surly 4130 CroMoly steel. Main triangle double-butted. TIG-welded cargo specific engineered for stiffness.

Fork
Surly Big Dummy, TIG-welded 4130 CroMoly, tapered and butted straight bladewith single fender eyelet on the dropout, 1-1/8˝ x 260mm threadless steerer, 51mm IS disc mount, removable cantilever pivots, line/housing guides

Seatpost clamp
Surly Stainless, 30mm Surly stainless, included

Drivetrain

Crankset
FC Firex C3.1,

Bottom Bracket
Surly Enduro,

Front Derailleur
Shimano Deore, FD-T611-3

Rear Derailleur
SRAM GX, 10-speed TYPE 2.1

Cog or Cassette
Microshift CS-H100 10-speed, 11-36t

Chain
KMC X10,

Components

Headset
Cane Creek 40,

Brakes
Avid BB7, Centerline 180mm rotors front & rear

Brake Levers
Avid FR-5,

Shifters
X7 Trigger,

Stem
H.L., 31.8mm

Handlebar
Premetec,

Saddle
WTB Volt Sport,

Seatpost
Kalloy SP-342,

Wheels

Front Hub
Shimano Deore M525 Disc, 36h. 100mm, black w/QR

Rear Hub
Shimano Deore M525 Disc, 36h. 135mm, black w/QR

Rims
Alex Adventurer,

Tires
Kenda 26x2.3" Kiniption, 60tpi

Frame Size

Stem Length

Stem Angle

Handlebar Width

Crank Length

Small

80.0

7.0

700.0

170.0

Medium

90.0

7.0

750.0

175.0

Large

100.0

7.0

750.0

175.0

X-Large

110.0

7.0

750.0

175.0

 

Tubing
Surly 4130 CroMoly steel. Main triangle double-butted. TIG-welded cargo specific engineered for stiffness and durability

Rear Dropouts
Vertical, 135mm spaced with fender eyelets; Rohloff compliant

Brake compatibility
51mm disc mounts and removable cantilever pivots

Braze-ons
Quad water bottle mounts, Surly Trip Guides for continuous brake/shift housing or brake hydraulic line (toptube and seatstay routing), fender eyelets

Seatpost diameter
27.2mm

Seatpost clamp diameter
30.0mm

Headset/Steerer Tube
1-1/8˝ threadless

Front derailleur clamp diameter
28.6mm (1-1/8˝) clamp diameter, top-pull style

Bottom bracket shell
68mm wide, threaded English 1.37˝ x 24t

Chainring clearance
No frame limitations. Use whatever you want

Tire clearance
26 x 2.5˝ with fenders

Fork
TIG-welded 4130 CroMoly, tapered and butted straight blade with single fender eyelet on the dropout, 1-1/8˝ x 260mm threadless steerer, 51mm IS disc mount, removable cantilever pivots, line/housing guides

Color
Soil Ant Green

Cargo Weight Limit
400 lb combined rider and cargo. Max cargo 200 lb
 
 
 
GEOMETRY

 

Small (16)

Medium (18)

Large (20)

xLarge (22)

 

Seat Tube Length

(Center-Top)

406.4

457.2

508.0

558.8

 

Top Tube Length

(Center-Center)

550.6

570.1

588.7

609.6

 

Effective Top Tube Length

(Center-Center)

573.5

596.1

614.1

631.8

 

Head Tube Angle

72.0

72.0

72.0

72.0

 

Seat Tube Angle

73.0

73.0

73.0

73.0

 

BB Drop

40.0

40.0

40.0

40.0

 

Chainstay Length

827.0

827.0

827.0

827.0

 

Wheelbase

1435.9

1458.8

1477.0

1495.0

 

Standover Height

740.4

771.5

802.9

835.8

 

Head Tube Length

131.7

145.9

160.8

178.8

 

Fork Length

425.0

425.0

425.0

425.0

 

Fork Offset

43.0

43.0

43.0

43.0

 

Stack

566.5

580.0

594.1

611.3

 

Reach

399.6

418.1

431.7

444.1

 

All dimensions are preliminary and subject to change

* Standover is measured from the top of the TT, at the center, with a tire measuring approximately Ø676mm

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