Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Steel -
Wheels 26" -
Groupset GX, NX -
Suspension Rigid -
Motor Bosch 250W 75Nm mid-drive -
Battery Bosch PowerPack 500 -
Brakes Hydraulic Disc
Sizing
Recommended size guide.
SM
158cm - 170cm
MD
168cm - 179cm
LG
176cm - 187cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Surly Big Easy Frame for Bosch Mid Drive
Suspension Fork
Surly Big Easy Fork
Drivetrain
Rear Derailleur
SRAM GX
Front Derailleur
N/A
Shift Levers
SRAM NX 11 speed
Cassette
SunRace CSMS7 11-42
Crank
Miranda for Big Easy
Bottom Bracket
included in Bosch Unit
Chain
KMC X11e
Wheels
Front Hub
Shimano M525, 32h, QR
Rear Hub
Shimano M525, 32h, QR
Rims
WTB STS i29 TCS
Tires
Surly ExtraTerrestrial 26x2.5" Tubeless Ready
Brakes
Brakes
Tektro Orion 4 Piston HD-M745
Brake Levers
Tektro
Disk Rotors
Tektro 6-Bolt 180mm
Cockpit
Stem
ProMax 4-bolt 31.8mm clamp
Handlebar
Surly Terminal Bar
Grips
Velo single lock-on
Headset
Cane Creek ViscoSet [tuned for Surly Big Easy] upper. 40 series lower
Seat
Saddle
WTB Volt
Seatpost
TranzX SP15 Dropper Post
Motor & Battery
Motor
Bosch Performance CX [20m/h]
Battery
Bosch PowerPack 500
Remote
Bosch Purion
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | SM | MD | LG |
|---|---|---|---|
| Stack Reach Ratio | 1.37 mm | 1.38 mm | 1.39 mm |
| Front Center | 661 mm | 693 mm | 720 mm |
| Rake | 43 mm | 43 mm | 43 mm |
| Trail | 75 mm | 74 mm | 75 mm |
| Stack | 573 mm | 601 mm | 629 mm |
| Reach | 417 mm | 437 mm | 454 mm |
| Top Tube Length | 596 mm | 626 mm | 651 mm |
| Seat Tube Angle | 72.5 ° | 72.5 ° | 72.5 ° |
| Seat Tube Length | 406 mm | 432 mm | 508 mm |
| Head Tube Angle | 69 ° | 69 ° | 69 ° |
| Head Tube Length | 150 mm | 180 mm | 210 mm |
| Chainstay Length | 827 mm | 827 mm | 827 mm |
| Wheelbase | 1486 mm | 1518 mm | 1545 mm |
| Bottom Bracket Drop | 40 mm | 40 mm | 40 mm |
| Standover Height | 729 mm | 777 mm | 827 mm |
| Wheels | 26" | 26" | 26" |
| Rider Min Height | 158 cm | 168 cm | 176 cm |
| Rider Max Height | 170 cm | 179 cm | 187 cm |
About this model
Big Easy completes the Surly E Big Easy model. Surly released 4 e-bikes variations of this model so far.
Safety
Your safety should be the top priority when you go for a ride. In short, make sure that you always use a helmet, high visibility clothing, and proper lights when riding at night-time.
Average price for Utility e-bikes
According to our math, the average price for a trustworthy Utility e-bike is 3636$. However, even though the average price of an Utility e-bike is lower, you might still be able to get a top-quality e-bike. As a general rule of thumb, you should always read reviews about the e-bike and its components before buying it to ensure you don’t pay too much.
Furthermore, if we have a quick look at this model’s cost, we can see that at its release date the price was 5249$. Comparing this to the average Utility e-bike price, we see that the price is 44.36% more expensive.
Overview of components
Fork material
When it comes to the fork, this e-bike has a steel one, so, it can add some extra weight to your bike. However, steel is a pretty tough and durable material.
Wheels size
When leaving the production line, the Big Easy model has 26″ aluminum wheels. The 26″ wheels are lighter than the 27.5 or 29″ wheels. However, you will need increased suspension than in the case of 29″ wheels.
Brakes
Nothing is more important on a bike than its ability to brake properly. Surly Big Easy is equipped with Hydraulic Disc brakes. These kinds of brakes are among the most popular models used on bikes. To sum up, your safety is in good hands.
Sizes
There are 3 sizes available for this model. Rider height can be anywhere between 158 cm – 187 cm (5.18 ft – 6.14 ft). In short, you can easily find one that suits you.
Dropper post
Surly Big Easy includes a dropper post. Needless to say, a dropper post will come in handy on climbs and descends. You’ll fall in love with it at first sight!