Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Steel -
Groupset microSHIFT Advent X -
Suspension Rigid -
Motor Bosch 600W 63Nm mid-drive -
Battery 500 Wh -
Drivetrain 1 × 10 -
Brakes Tektro Hydraulic Disc
Sizing
Recommended size guide.
SM
149cm - 182cm
MD
160cm - 190cm
LG
167cm - 198cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Surly Skid Loader - 100% Surly Chromoly Steel, Natch tubing, double-butted main traingle, TIG welded, E.D. coated
Suspension Fork
Surly Dinner Fork - 100% Surly Chromoly Steel, Natch tubing, double-butted tapered fork blades, TIG welded, E.D. coated
Drivetrain
Rear Derailleur
microSHIFT Advent X 10-speed
Front Derailleur
N/A
Shift Levers
microSHIFT Advent X Pro
Cassette
microSHIFT Advent X H-Series 10-speed, 11-48t
Crank
FSA Mega Arm set for Bosch, with FSA Mega Ring Steel, 38t
Bottom Bracket
Bosch, press-fit
Chain
TAYA 10-speed
Wheels
Front Hub
Novatec thru-axle, 36h, 15 x 110mm
Rear Hub
Novatec HG spline cassette hub, sealed bearing, thru-axle, 36h, 12 x 148 mm
Rims
WTB i35 27.5 HTZ, 36h
Tires
Front: Surly ExtraTerrestrial 27.5 x 2.5", Tubeless Ready, 60tpi, Rear: Surly ExtraTerrestrial 27.5 x 2.5", Tubeless Ready, 60tpi
Brakes
Brakes
Tektro 4-piston M745
Brake Levers
Tektro M745
Cockpit
Stem
Kalloy 4-bolt 31.8 mm clamp
Handlebar
Surly Terminal Bar
Headset
Cane Creek ViscoSet/40 series
Seat
Saddle
WTB Volt
Seatpost
Ø30.9mm
Motor & Battery
Motor
Bosch Performance Cargo Drive Unit (20 mph)
Battery
500 Wh
Charger
Yes
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | SM | MD | LG |
|---|---|---|---|
| Stack Reach Ratio | 1.59 mm | 1.536 mm | 1.495 mm |
| Front Center | 629 mm | 666 mm | 702 mm |
| Rake | 50 mm | 50 mm | 50 mm |
| Stack | 593 mm | 616 mm | 640 mm |
| Reach | 373 mm | 401 mm | 428 mm |
| Top Tube Length | 560 mm | 595 mm | 630 mm |
| Seat Tube Angle | 72.5 ° | 72.5 ° | 72.5 ° |
| Seat Tube Length | 445 mm | 445 mm | 500 mm |
| Head Tube Angle | 69 ° | 69 ° | 69 ° |
| Head Tube Length | 160 mm | 185 mm | 210 mm |
| Chainstay Length | 530 mm | 530 mm | 530 mm |
| Wheelbase | 1153 mm | 1190 mm | 1226 mm |
| Bottom Bracket Drop | 60 mm | 60 mm | 60 mm |
| Standover Height | 709 mm | 743 mm | 780 mm |
| Wheels | 27" | 27" | 27" |
| Rider Min Height | 149 cm | 160 cm | 167 cm |
| Rider Max Height | 182 cm | 190 cm | 198 cm |