Bike details
Overview
Key information split into simple groups.
Bike summary
-
Category -
Frame Steel -
Wheels 26" / 29" -
Groupset GX, Race Face -
Suspension Rigid -
Drivetrain 2 × 11 -
Brakes Hydraulic Disc
Sizing
Recommended size guide.
SM
158cm - 170cm
SM
158cm - 170cm
MD
168cm - 179cm
MD
168cm - 179cm
LG
176cm - 187cm
LG
176cm - 187cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Surly 4130 Chromoly steel. Surly 4130 Chromoly steel. Main triangle double-butted. TIG-welded cargo specific engineered for stiffness and durability
Suspension Fork
Surly Wednesday, Tapered straight blade 4130 Chromoly. Surly Wednesday, Tapered straight blade 4130 Chromoly. 468mm axle to crown, 47mm offset. 51mm I.S. front standard disc mount, 150mm x 15mm thru-axle dropouts (axle included), 100mm suspension fork compatible
Drivetrain
Rear Derailleur
SRAM GX 2x11 type 2.1
Front Derailleur
SRAM GX 2x11 high direct mount
Shift Levers
SRAM GX 2x11
Cassette
Sunrace 11 speed 11-42t
Crank
Race Face AEffect 34/24T
Bottom Bracket
Race Face
Chain
KMX X11 anti rust
Wheels
Front Hub
Novatec, 32h, Thru-Axle
Rear Hub
Novatec, 32h, Thru-Axle
Rims
WTB Scraper i40 ST TCS
Tires
Surly Dirt Wizard 29x3 60tpi
Brakes
Brakes
SRAM Level T
Brake Levers
SRAM Level T
Disk Rotors
SRAM Centerline 180/180mm
Cockpit
Stem
31.8mm clamp 4-bolt
Handlebar
Salsa Rustler
Grips
Velo Single lock-on
Headset
Cane Creek 40 series
Seat
Saddle
WTB Volt
Seatpost
30.9 2-Bolt 400mm
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | SM | SM | MD | MD | LG | LG |
|---|---|---|---|---|---|---|
| Stack Reach Ratio | 1.41 mm | 1.41 mm | 1.38 mm | 1.38 mm | 1.39 mm | 1.39 mm |
| Front Center | 661 mm | 661 mm | 692 mm | 692 mm | 719 mm | 719 mm |
| Rake | 47 mm | 47 mm | 47 mm | 47 mm | 47 mm | 47 mm |
| Trail | 72 mm | 84 mm | 73 mm | 85 mm | 72 mm | 84 mm |
| Stack | 585 mm | 585 mm | 604 mm | 604 mm | 632 mm | 632 mm |
| Reach | 415 mm | 415 mm | 439 mm | 439 mm | 455 mm | 455 mm |
| Top Tube Length | 597 mm | 597 mm | 627 mm | 627 mm | 652 mm | 652 mm |
| Seat Tube Angle | 72.5 ° | 72.5 ° | 72.5 ° | 72.5 ° | 72.5 ° | 72.5 ° |
| Seat Tube Length | 356 mm | 356 mm | 432 mm | 432 mm | 508 mm | 508 mm |
| Head Tube Angle | 69 ° | 69 ° | 69 ° | 69 ° | 69 ° | 69 ° |
| Head Tube Length | 100 mm | 100 mm | 120 mm | 120 mm | 150 mm | 150 mm |
| Chainstay Length | 882 mm | 882 mm | 882 mm | 882 mm | 882 mm | 882 mm |
| Wheelbase | 1539 mm | 1539 mm | 1570 mm | 1570 mm | 1597 mm | 1597 mm |
| Bottom Bracket Drop | 55 mm | 55 mm | 55 mm | 55 mm | 55 mm | 55 mm |
| Standover Height | 753 mm | 753 mm | 799 mm | 799 mm | 848 mm | 848 mm |
| Wheels | 26" | 29" | 26" | 29" | 26" | 29" |
| Rider Min Height | 158 cm | 158 cm | 168 cm | 168 cm | 176 cm | 176 cm |
| Rider Max Height | 170 cm | 170 cm | 179 cm | 179 cm | 187 cm | 187 cm |
Model Overview
Big Fat Dummy completes the Surly Big Fat model. Surly released 8 bikes variations of this model so far. Take a sneak peek at all Surly Big Fat bikes models from 2019, by clicking here.
Safety
Your safety is a top priority so always wear a helmet when you ride your bike. Moreover, wear the right clothing. You want to be visible to other drivers, so avoid wearing dark clothing.
Long Tail Cargo bikes average price
Our math shows that the average cost of a dependable Long Tail Cargo bike is 1276$. However, paying less money than this amount doesn’t mean that you couldn’t get a great Long Tail Cargo bike. In short, before purchasing your ideal bike do some research about its components, and also check for reviews online.
Furthermore, this bike was made available in 2019 for 3025$. If we compare this with the average Long Tail Cargo bike cost we notice that the price is 137.07% higher.
Big Fat Dummy components
Fork material
The fork is made out of steel, which tends to be more flexible than carbon forks in general. However, a carbon fork is considerably lighter.
Wheels size
When it comes to wheels, the Big Fat Dummy bike is equipped with the 26″ aluminum model. Being a little smaller, these wheels will fit both small and tall riders. However, they are less forgiving when riding over obstacles such as bumps and roots.
Brakes
For your safety, it is important to have quality breaks on your bike. Surly Big Fat Dummy has Hydraulic Disc brakes installed. These kinds of brakes are among the most popular models used on bikes. To sum up, these are ideal for anyone.
Sizes
There are 6 sizes available for this model. Rider height can be anywhere between 158 cm – 187 cm (5.18 ft – 6.14 ft). In conclusion, it won’t take much to find one that’s right for you.