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Surly Lowside

Surly Lowside
  • Color: Dream Tangerine
  • Color: Dream Tangerine
  • Color: Dream Tangerine
  • Color: Dream Tangerine
  • Color: Dream Tangerine
Color: Dream Tangerine
Size: Select size
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Sorry, this item is currently not available. Please contact us to check availability.


Lowside is the bike that gets you across town for a quick rip on singletrack, then over to the bar for a night out.

Your BMX Bike All Grown Up
Lowside is like the grownup version of the bike you rode when you were a kid and still had hopes and dreams and some semblance of ambition. It's just as happy riding singletrack as it is parked outside your favorite drinking establishment.

Lowside is a single speed mountain bike. Singlespeeding has been a part of Surly's DNA since day one when we launched the 1x1 Rat Ride. After a lot of Homie Fall Fests and more feats of strength than we can recall, we decided to discontinue it a couple years back. Lowside picks up right where the 1x1 left off.

"Some have dubbed the Lowside the ultimate pub cruiser."

- Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles
- Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed though)
- Spec'd in alternating years with 26 x 3" or 27.5 x 2.8" tires, the Lowside remains capable of running either option

bike frame with labeled dimensions
Bike Sizes:
A. Reach 414.5 429.3 445.3 461 477
B. Stack 542.2 560.3 574.4 588.5 602.5
C. Standover 700 729 762 792 823
D. Effective Top Tube 570 590 610 630 650
E. Head Tube Angle 70 70 70 70 70
F. Head Tube Length 110 125 140 155 170
G. Seat Tube Angle 74 74 74 74 74
H. Seat Tube Length 316 366 416 466 516
J. Bottom Bracket Drop 55 55 55 55 55
K. Fork Rake/Offset 47 47 47 47 47
M. Wheelbase 1068 1089 1110 1131 1152
O. Chainstay Length 425 425 425 425 425
Fork Length 420 420 420 420 420

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

WARNING: Cycling can be dangerous. Bicycles and bicycle products should be assembled and serviced by a professional mechanic. Never modify your bicycle or accessories. Read and follow all product instructions and warnings including information on the manufacturer’s website. Inspect your bicycle before every use. Always wear a helmet.


Frame 4130 Chromoly, Natch tubing, double-butted main triangle, TIG welded, E.D. coated
Fork 4130 Chromoly, Natch tubing, double-butted tapered fork blades, TIG welded, E.D. coated
Rims WTB ST i35 TCS
Hubs Novatec
Axles Front: 110 x 15mm
Rear: 148 x 12mm
Tires Maxxis Rekon+ 27.5x2.8 60tpi
Bottom Bracket SRAM Power Spline
Crankset SRAM NX
Chainrings 32T
Cassette/Freewheel Surly 17t w/ spacer kit
Brakes Tektro Hydro M275/276
Rotors Tektro 160/160mm
Brake Levers Tektro
Handlebars Surly Sunrise
Tape/Grips Velo Black
Stem Sunday Freeze top load 22.2mm clamp
Headset Cane Creek
Saddle Selle Italia Black

* Subject to change without notice.


Part Numbers

Option UPC MPN
Dream Tangerine / X-Small 708752370449 BK0532
Dream Tangerine / Small 708752370586 BK0533