Surly Skid Loader
The Surly Skid Loader is an electric bike with a 36V pack, a capacity of 14.4Ah, 545Wh of energy, assistance to 20 mph km/h, a weight of 60 lbs 15 oz for Medium and a load capacity of 400-lb. max weight capacity (rider plus cargo).
Last updated: 10 November 2026
Motor and performance
- Maximum assistance ratio
- 400%
- Assisted speed
- 20 mph
- Walk assist
- Yes
- Motor type
- Bosch Performance Line Cargo (Smart System)
- Payload capacity
- 400-lb. max weight capacity (rider plus cargo)
- Throttle
- No
- Pedal assist levels
- Eco, Tour+, Cargo, Turbo
- Range
- //www.bosch-ebike.com/range-cockpit/?language=en-us
- Motor torque
- 85Nm
Row from the maker’s page: “Max Motor Assist” | “400%”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
Row from the maker’s page: “Max Assist Speed” | “20 mph”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
Row from the maker’s page: “Walk Assist” | “Yes”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Bosch Performance Line Cargo (Smart System)”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Gross Payload 400-lb. max weight capacity (rider plus cargo)”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
Row from the maker’s page: “Throttle” | “No”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Assist Levels Eco, Tour+, Cargo, Turbo”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
Row from the maker’s page: “A 15–50 mile range is normal for Skid Loader, but your mileage may vary depending on support mode, rider weight, cargo load, and other variables. Peruse the Bosch E-bike Range Calculator to learn how you can extend your bike’s range. https” | “//www.bosch-ebike.com/range-cockpit/?language=en-us”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
Row from the maker’s page: “Motor Torque” | “85Nm”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
Battery and charging
- Charger included
- Yes, Bosch 4A charger
- Energy
- 545Wh
- Battery
Bosch PowerPack 545 battery
Compact Electric Cargo Bike | Cargo ebike | Surly Bikes · retrieved 11 October 2026
“Bosch PowerPack 545 battery”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
Bosch PowerPack 500 battery
Skid Loader - Bathwater Gray – Surly Bikes · retrieved 11 October 2026
“Bosch PowerPack 500 battery”
Source: surlybikes.com/products/skid-loader-bathwater-gray
- Voltage
- 36V
- Rated capacity
- 14.4Ah
- Charging time, stated for the machine
- Sources disagree
100% charge: approx. 4.9 hours
“100% charge: approx. 4.9 hours”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
approx. 1.8 hours 100% charge: approx. 4.9 hours
Row from the maker’s page: “50% charge” | “approx. 1.8 hours 100% charge: approx. 4.9 hours”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
- Removable battery
- Yes
- Nominal capacity
- 14.4Ah
“Charger Included Yes, Bosch 4A charger”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Battery Capacity Watt Hours 545Wh”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
The maker’s own documents give different figures
Row from the maker’s page: “Battery Power Volts” | “36V”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Battery Capacity Amp Hours 14.4Ah”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
Row from the maker’s page: “Removable Battery” | “Yes”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Battery Capacity Amp Hours 14.4Ah”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
Brakes and safety
- Brake calipers
- Tektro HD-M750, 4 piston
- Brake layout
- Tektro HD-M750, 4 piston
- Brakes
- Tektro HD-M750, 4 piston
- Brake rotors
- Tektro 180/180, 6-Bolt
- Lighting
- Yes (AXA Nxt 60 Front, AXA Blueline Rear)
- Brake levers
- Tektro HD-M750
“Brake Calipers Tektro HD-M750, 4 piston”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Brake Calipers Tektro HD-M750, 4 piston”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Brake Calipers Tektro HD-M750, 4 piston”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Rotors Tektro 180/180, 6-Bolt”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Lights Included Yes (AXA Nxt 60 Front, AXA Blueline Rear)”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Brake Levers Tektro HD-M750”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
Frame and components
- Crankset
- FSA CK-763, 38t
- Rear derailleur
- Shimano CUES U6000 GS
- Lighting system
- Yes (AXA Nxt 60 Front, AXA Blueline Rear)
- Colours
- Illegal Smile Green
- Cassette
- Shimano Linkglide LG300 11-48t 10sp
- Frame construction
- 100% Surly Chromoly Steel, Natch tubing, double-butted main triangle, TIG welded, E.D. coated
- Trailer attachment
- Out of the box, the Skid Loader is not compatible with our Bill and Ted Trailer system due to rear derailleur cable routing interference. Bill and Ted trailer hitches are best compatible with older rear derailleurs where the cable housing forms a loop around the rear axle and enters the derailleur horizontally from the rear.
- Water bottle mounts
- 1 Standard (S); 2 Standard (M–L)
- Tires
- Surly ExtraTerrestrial 27.5 x 2.5", 60 tpi, tubeless ready
- Rims
- WTB HTZ Trail i35 27.5", TCS 2.0
- Spokes
- 14 Gauge Stainless
- Chain
- Shimano Linkglide LG500
- Derailleur
- Shimano CUES U6000 GS
- Shifter
- Shimano CUES U6000
- Headset
- Cane Creek Viscoset Upper / 40 Series Lower 1-1/8"
- Stem
- Kalloy 31.8
- Handlebar
- Surly Terminal
- Grips
- Velo Black
- Saddle
- WTB Volt Medium
- Seat post
- Tranz-X YSP15 Dropper, 120 mm travel
- Display
- Purion 200 Remote
- Rear hub spacing
- 12 x 148mm
- Front hub spacing
- 15 x 110mm
- Front tyre
- Surly ExtraTerrestrial 27.5 x 2.5", 60 tpi, tubeless ready
- Rear tyre
- Surly ExtraTerrestrial 27.5 x 2.5", 60 tpi, tubeless ready
- Seat post clamp
- Ø33.1mm
- Wheel size
- Sources disagree
27.5 x 2.5"
“Design Wheel/Tire Sizes 27.5 x 2.5"”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
27.5 x 2.5”
“Sturdy, full-size wheels and large-volume 27.5 x 2.5” ExtraTerrestrial tires”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
27.5”
“Engineered to ride and feel like a regular bike, its 27.5” wheel platform provides abundant tire options you don’t get from cargo bikes rolling on smaller wheels.”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
- Front hub
- Novatec 15 x 110 mm, 6-bolt, 36h
- Rear hub
- Novatec 12 x 148 mm, 6-bolt, 36h
Row from the maker’s page: “Crankset” | “FSA CK-763, 38t”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Rear Derailleur Shimano CUES U6000 GS”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Lights Included Yes (AXA Nxt 60 Front, AXA Blueline Rear)”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Color Illegal Smile Green”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Cassette Shimano Linkglide LG300 11-48t 10sp”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Frame Construction 100% Surly Chromoly Steel, Natch tubing, double-butted main triangle, TIG welded, E.D. coated”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
Row from the maker’s page: “A” | “Out of the box, the Skid Loader is not compatible with our Bill and Ted Trailer system due to rear derailleur cable routing interference. Bill and Ted trailer hitches are best compatible with older rear derailleurs where the cable housing forms a loop around the rear axle and enters the derailleur horizontally from the rear.”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
Row from the maker’s page: “Bottle Mounts Frame” | “1 Standard (S); 2 Standard (M–L)”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Rear Tire Surly ExtraTerrestrial 27.5 x 2.5", 60 tpi, tubeless ready”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Rim WTB HTZ Trail i35 27.5", TCS 2.0”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
Row from the maker’s page: “Spoke” | “14 Gauge Stainless”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Chain Shimano Linkglide LG500”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Rear Derailleur Shimano CUES U6000 GS”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Shifter Shimano CUES U6000”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Headset Cane Creek Viscoset Upper / 40 Series Lower 1-1/8"”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
Row from the maker’s page: “Stem” | “Kalloy 31.8”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
Row from the maker’s page: “Handlebar” | “Surly Terminal”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Grips/Bar Tape Velo Black”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
Row from the maker’s page: “Saddle” | “WTB Volt Medium”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Seatpost Tranz-X YSP15 Dropper, 120 mm travel”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Equipped with Bosch Performance Line Cargo (Smart System) with Purion 200 Remote, featuring four invigorating levels of ride assist”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Rear Spacing 12 x 148mm (Surly axle included)”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Front Spacing 15 x 110mm (Surly axle included)”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Front Tire Surly ExtraTerrestrial 27.5 x 2.5", 60 tpi, tubeless ready”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Rear Tire Surly ExtraTerrestrial 27.5 x 2.5", 60 tpi, tubeless ready”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
Row from the maker’s page: “Seatpost Clamp” | “Ø33.1mm”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Front Hub Novatec 15 x 110 mm, 6-bolt, 36h”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
“Rear Hub Novatec 12 x 148 mm, 6-bolt, 36h”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
Size and fit
- Weight
- 60 lbs 15 oz for Medium
- Seat post diameter
- Ø30.9mm
“Complete Bike 60 lbs 15 oz for Medium”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
Row from the maker’s page: “Seatpost” | “Ø30.9mm”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
Certification claims
- Battery certification claim
- Meets UL 2849, and UL 2271 certification
“Meets UL 2849, and UL 2271 certification”
Source: surlybikes.com/products/skid-loader-illegal-smile-green
Sources
- Compact Electric Cargo Bike | Cargo ebike | Surly BikesArchived document
Source: surlybikes.com/products/skid-loader-illegal-smile-green
Retrieved October 11, 2026
- Skid Loader - Bathwater Gray – Surly BikesArchived document
Source: surlybikes.com/products/skid-loader-bathwater-gray
Retrieved October 11, 2026