• Surly Big Easy electric cargo bike with bags green color side view
  • Surly Big Easy electric cargo bike with bags white color side view
1 2

Big Easy

Big Easy

⚠️ 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.

View full details

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 full-blown cargo bike and trailer. 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. We also increased stand-over height clearance and threw in dropper post routing to promote bike sharing across different-sized riders. 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 perfectly suited for electric cargo bikes, including four-piston Tektro brakes
  • Equipped with Bosch Performance CX, their most powerful drive unit
  • Damping headset for smooth and stable handling under heavy loads
  • Capable of running dual batteries for extended range, if you’re into that. (All mounting hardware and wiring included.)
  • Large-volume 26” x 2.5” ExtraTerrestrial tires and durable wheel builds
  • Big Easy available for purchase in the US only (available in Canada Fall 2019)
  • Frame integration with Surly Bill and Ted trailers for maximum cargo potential

Specifications

Geometry

Geometry Diagram
SIZE SM MD LG
Reach 411 431 448
Stack 567 595 623
Head Tube Angle 69.0° 69.0° 69.0°
Head Tube Length 150 180 210
Seat Tube Length 406 432 508
BB Drop 40 40 40
Wheelbase 1480 1512 1539
Chainstay Length 821 821 821
Top Tube Length, Actual 574.1 594.4 618.1
Top Tube Length, Effective 590 620 645
Seat Tube Angle 72.5° 72.5° 72.5°
Standover Height 723 771 821
Stem Length 60 70 80
Stem Angle 6° 6° 6°
Handlebar Width 740 740 740
Crank Length 175 175 175
Fork Length 420 420 420
Fork Rake 43 43 43

*Measured at the center of the TT and based on a wheel diameter of 678mm

Frame Specs

  • Frame Construction: 4130 Chromoly, Natch tubing, double-butted main triangle, TIG welded
  • Fork Construction: 4130 Chromoly, Natch tubing, double-butted tapered fork blades, TIG welded, ED coated
  • Rear Dropout Configuration: Big Dummy Style. 10 x 135mm
  • Rear Hub Spacing: 10 x 135mm
  • Front Hub Spacing: 10 x 100mm
  • Rear Brake Compatibility: Disc - 51mm I.S. (203mm max rotor)
  • Front Brake Compatibility: Disc - 51mm I.S. (203mm max rotor)
  • Head Tube: Ø34mm
  • Steerer Tube: Ø28.6mm (1-1/8")
  • Crown Race Diameter: Ø30mm (1-1/8")
  • Stock Headset Upper (S.H.I.S.): EC34/28.6
  • Stock Headset Lower (S.H.I.S.): EC34/30
  • Seat Collar: Ø33.1mm
  • Seatpost Diameter: Ø30.9mm
  • Front Derailleur (Clamp): N/A
  • Max Chainring (CL): No frame limitations
  • Bottom Bracket: Bosch Mid Drive Mounting Node
  • Tire Clearance Frame: 26 x 2.5" (with or without fenders)
  • Tire Clearance Fork: 26 x 3.0" (without fenders), 26 x 2.8" (with fenders)
  • Rigid Fork Spec: 420 x 43mm
  • Max Suspension Fork Length: N/A
  • Bottle Mounts Frame: 3 Standard
  • Bottle Mounts Fork: 4 Three-Pack
  • Rack Mounts Frame: Yes (Surly Dummy Rails)
  • Rack Mounts Fork: Yes (upper, lower, and mid-blade threaded)
  • Fender Mounts Frame: Yes
  • Fender Mounts Fork: Yes
  • Other Features: Kickstand plate, Dedicated Rohloff cable routing and OEM 2 axle plate mount, Internal dropper post routing compatible, 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.
[4]  Suspension fork length listed at full extension (not at sag) 

Documents

Blog posts

View all
1 3
View all