Surly Lowside The Surly Lowside is what happens when your childhood BMX bike grows up and gets way more capable. Built as a single speed mountain bike, it’s playful, simple, and incredibly fun—perfect for singletrack, pump tracks, urban ripping, and everyday cruising. It keeps the spirit of old-school riding alive with modern mountain bike standards like thru-axles, dropper post compatibility, and Gnot-Boost rear spacing. Whether you're hitting dirt jumps, riding trails, or locking it outside your favorite bar, the Lowside is built for riders who want maximum fun with minimum complication. With big 27.5 x 2.8” Maxxis Rekon+ tires, a wide Surly Sunset handlebar, and tough 4130 Chromoly steel construction, it delivers confidence, comfort, and pure single-speed simplicity. Highlights 4130 Chromoly steel frame and fork True single speed mountain bike setup 27.5 x 2.8” Maxxis Rekon+ tubeless-ready tires Compatible with 26 x 3.0" tires Dropper post compatible 44mm headtube Gnot-Boost rear spacing Front and rear thru-axles Hydraulic disc brakes Color-matched Surly Sunset handlebar Silver component package for classic style Ideal For Singletrack riding Pump tracks Dirt jumps Urban cruising Pub rides Riders who love simple, fun bikes with personality Color Blue Monday A bold deep blue finish with serious retro BMX energy—clean, simple, and unmistakably Surly.
