Skip to main content

Surly Big Easy

Surly Big Easy
  • Color: Deep Forest Green
Color: Deep Forest Green
Size: Small
Please select options Unavailable


Riding with cargo is core to Surly's mission on this earth, whether you’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 Surly created Big Easy, their 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. It has increased stand-over height clearance and they threw in a dropper post 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
- Capable of running dual batteries for extended range, if you’re into that. (All mounting hardware and wiring included.)
- Damping headset provides smooth and stable handling characteristics under heavy loads
- Condensed bike size range and dropper post routing to promote bike sharing and to accommodate more riders per frame size
- Includes Bosch Standard 4A charger, wiring harness, and brackets for additional battery

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


Drive System Bosch Performance CX 20mph
Display Bosch Purion
Battery Type/Weight Bosch PowerPack 500
Charger Type Bosch 4A
Max. Assisted Speed 20mph / 32kph
Frame Surly Big Easy Frame for Bosch Mid Drive, 4130 Chromoly Steel
Fork Surly Big Easy Fork, 4130 Chromoly Steel
Headset Cane Creek ViscoSet (tuned for Surly Big Easy) upper, 40 series lower
Axles QR
Rims/Wheels WTB STS i29 TCS
Hubs Shimano M525, 32h, QR
Tires Surly ExtraTerrestrial 26x2.5" Tubeless Ready
Crankset Miranda for Big Easy
Chain KMC X11e
Rear Derailleur SRAM GX
Cassette/Rear Cogs SunRace CSMS7 11-42T
Shifters SRAM NX 11 speed
Handlebars Surly Terminal, 31.8mm
Tape/Grips Velo single lock-on
Stem ProMax 4-bolt 31.8mm clamp
Brake Levers Tektro
Brakes Tektro Orion 4 Piston HD-M745
Saddle WTB Volt
Seatpost Dropper post, 30.9mm

* Subject to change without notice.


Part Numbers

Option UPC MPN Store SKU
Deep Forest Green / Small 708752298033 BK9189 SUR48341442L