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Surly Lowside

Surly Lowside
  • Color: Rainbow in the Dark
Rainbow in the Dark
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Please call us at (321) 939-2453 or email for availability.


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

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 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 Store SKU
Rainbow in the Dark / X-Small 708752141049 BK0065 21193
Rainbow in the Dark / Small 708752140998 BK0066 BK0066
Rainbow in the Dark / Medium 708752140943 BK0067 BK0067
Rainbow in the Dark / Large 708752140899 BK0068 BK0068
Rainbow in the Dark / X-Large 708752140844 BK0069 BK0069