Surly Lowside

Surly Lowside
  • Color: Rainbow in the Dark
Rainbow in the Dark
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This item is not permitted to be shipped, however it can be purchased online and picked up at your convenience.


The Surly Lowside is the bike that gets you across town for a quick rip on singletrack, then over to the bar for a night out. It’s the bike you turn to when you’re not entirely sure what the night has in store. It’s the bike to grab when you want to have just as much fun riding to the trail as you do on the trail, itself. Singlespeeding is an integral part of Surly’s DNA, and the Lowside continues the tradition, by taking a simpler approach to trail riding.

- 100% Surly 4130 chromoly frame, main triangle is double-butted; 1 1/8" threadless chromoly fork
- Singlespeed "specific" (derailleur hanger: yes; Trip Guides: no)
- Dropper post routing
- Gnot-Boost rear spacing
- Front and rear thru-axles
- 26 x 3" or 27.5 x 2.8" tire clearance


Frame Surly Lowside
Fork Surly Lowside
Headset Cane Creek
Axles Front: 110 x 15mm
Rear: 148 x 12mm
Rims/Wheels Alex MD40
Hubs Formula
Tires Surly Dirt Wizard 26 x 3.00
Crankset SRAM NX
Chainrings 32T
Bottom Bracket SRAM PS
Chain KMC x10-1
Cassette/Rear Cogs Surly 16T w/ spacer kit
Handlebars Surly Sunrise
Stem 4-bolt
Brake Levers Promax
Brakes Promax DSK-300 mechanical disc
Saddle WTB Volt
Seat Post 2-bolt, 30.9mm

* Subject to change without notice.


Surly Lowside

Part Numbers

Option UPC MPN
Rainbow in the Dark / Small 708752140998 BK0066