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  • Surly Surly Big Easy
  • Surly Surly Big Easy
  • Surly Surly Big Easy
  • Surly Surly Big Easy
  • Surly Surly Big Easy
  • Surly Surly Big Easy
  • Surly Surly Big Easy
  • Surly Surly Big Easy
  • Surly Surly Big Easy
  • Surly Surly Big Easy

Surly Big Easy

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Big Easy is a long-tail electric cargo bike that expands what’s possible by bike. Simplify the Haul With an Electric Cargo Bike

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In stock

Simplify the Haul With an Electric Cargo Bike

Riding loaded with cargo is core to us here at Surly, whether we’re running a front rack and bag setup or a long-tail cargo bike with passengers along for the ride. There are times, however, when even the strongest riders are limited in what they can haul, so we created Big Easy – our long-tail electric cargo bike. Consider it the 18-wheeler of the cargo bike world, minus the diesel fumes. 

When it comes to geometry, Big Easy rides and feels like a normal-length bike – the upright, engaged rider position keeps things comfortable. So, whether you want to wave goodbye to the old family gas hog, upgrade your bike-supported business’s two-wheeled fleet, or simply haul more bowling balls during your daily commute, Big Easy makes doing all that, well, easy.

  • Full component set selected for the demands of heavy cargo hauling, including Tektro four-piston hydraulic brakes for enhanced stopping power
  • Expanded rider fit per size and long throw dropper post compatibility to improve bike sharing among different-sized riders 
  • Equipped with the most powerful Bosch electric bike motor for elevated performance
  • Features Surly dual-leg kickstand for unmatched stability when loading and unloading cargo
  • Two-seat compatibility for human passengers big or small – no adapter needed (Thule Yepp Nexxt Maxi and Burley Dash)
  • Lower stand over height for improved stability when stopping, mounting, and dismounting
  • High-rise Surly Sunrise handlebars give riders leverage to control heavy loads and the body position to keep you comfortable 
  • Featuring updated Big Dummy bags with simplified design and consistent cargo capacity
  • Damping headset for smooth and stable handling under heavy loads
  • Capable of running dual batteries for extended range
  • Large-volume 26 x 2.5" Extraterrestrial tires for smoother rides and durable wheel builds for added stiffness and strength
  • Big Easy complete bikes available for purchase in the US and Canada only



Big Easy
Dinner Fork
Pile of Bricks Red


Cane Creek ViscoSet [tuned for Surly Big Easy] upper. 40 series lower
Sunday Freeze Top Load 48mm
Surly Sunrise
Velo Black
WTB Volt


Drive Unit
Bosch Performance Line Cargo with Intuvia 100 Display and LED Remote
E-Bike Classification
Class 1
Drive Type
Max Assist Speed
20 mph
Motor Torque
Range Estimate
Assist Levels
4 Assist Levels - Eco, Tour+, Cargo, Turbo
Walk Assist
Max Motor Assist
340%, 600W
Gross Payload
400lb max total rider + cargo
Battery Capacity Watt Hours
Battery Capacity Amp Hours
Battery Power Volts
Removable Battery
Yes, Bosch PowerPack 725Wh
Estimated Charge Time
Charger Included
Yes, Bosch 4A Charger (110V)
Lights Included
Front Derailleur
Rear Derailleur
Shimano Cues U4000 GS
Shimano Cues LG400, 11-46t, 9 speed
KMC eGlide EPT Anti-Rust
FSA E-Bike CK-763/IS, paired with 38T FSA Chainring
Shimano Cues U4000
Brakes Levers
Tektro HD-T740
Brake Calipers
Tektro HD-T740, 4 Piston
Tektro 203mm F/180mm R, 6-Bolt
Bottom Bracket


Front Hub
Novatec 15 x 110mm, 32h, 6 Bolt
Rear Hub
Novatec 12 x 148mm, 32h, 6 Bolt
Straight 14g, Black
Alex MD30, 26", 32h
Front Tire
Surly Extra Terrestrial 26 x 2.5" 60tpi, Tubeless Compatible
Rear Tire
Surly Extra Terrestrial 26 x 2.5" 60tpi, Tubeless Compatible
Complete bike weight
74lb (size Medium)
MY24 Big Easy Geo
Rider Height 140 - 170cm 157 - 184cm 170 - 194cm
Reach 395.6 422.4 449.2
Stack 553.3 595.0 636.7
Head Tube Angle 68.0° 68.0° 68.0°
Head Tube Length 130 175 220
Seat Tube Length 410 450 500
BB Drop 50 50 50
Wheelbase 1481.3 1525 1568.7
Chainstay Length 830 830 830
Top Tube Length, Effective 570 610 650
Seat Tube Angle 72.5° 72.5° 72.5°
Standover Height 693 720 748
Stem Length 48 48 48
Stem Angle
Handlebar Width 820 820 820
Crank Length 170 175 175
Fork Length 420 420 420
Fork Rake 50 50 50

*Measured at the center of the TT and based on a wheel diameter of 689.5mm

Frame Construction

100% Surly Chromoly Steel, Natch tubing, double-butted main triangle, TIG welded

Fork Construction

100% Surly Chromoly Steel, Natch tubing, double-butted tapered fork legs, TIG welded, E.D. coated

Rear Hub Spacing

12 x 148mm

Rear Axle Dimensions

M12 x 169mm, 1.0 Thread Pitch

Rear Brake

Disc - 74mm Post (180-203mm)

Front Brake

Disc - 51mm I.S. (160-203mm)

Head Tube


Steerer Tube

Ø28.6mm (1-1/8")

Crown Race

Ø30mm (1-1/8")

Stock Headset Upper (S.H.I.S.)


Stock Headset Lower (S.H.I.S.)


Seat Collar




Front Derailleur (Clamp)


Max Chainring (CL)[3]

No Frame Limitations

Bottom Bracket


Tire Clearance Frame [1][2]

26 x 2.1-2.5" (w/ fender)
27.5 x 1.9-2.6" (w/o fender)
27.5 x 1.9-2.3" (w/ fender)
29 x 1.5-1.75" (w/o fender)

Tire Clearance Fork [1]

26 x 2.1-3.0" (w/o fender)
26 x 2.1-2.8" (w/ fender)
27.5 x 1.9-2.8" (w/o fender)
27.5 x 1.9-2.6" (w/ fender)
29 x 1.5-2.2" (w/o fender)
29 x 1.5-2.0" (w/ fender)

Rigid Fork Spec

420 x 50mm

Max Suspension Fork Length


Fork Offset


Front Hub Spacing

15 x 110mm

Front Axle Dimensions

Surly 15 x 110mm Axle (Included)

Bottle Mounts Frame

One 4-Pack + 2 Standard

Bottle Mounts Fork

Two 4-Pack

Rack Mounts Frame


Rack Mounts Fork

Yes (upper, lower, and mid-blade threaded)

Fender Mounts Frame


Fender Mounts Fork


Other Features

Integrated dual-leg kickstand mount
Internal cable routing for dropper post, brake, derailleur and light
Dual Bosch PowerPack Battery Mounts

  • [1]  Different tire and rim combinations will result in different clearances.  
    [2]  Depending on drivetrain configuration, tire clearance may be limited by the chain and not frame.
    [3]  Listed chainring clearance is worst case scenario. Clearances vary widely depending on components and configurations.


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