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)
- Clearance for 26” x 3” or 27.5” x 2.8” tires
Frame Construction |
4130 Chromoly, Natch tubing, double-butted main triangle, TIG welded, ED coated |
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Fork Construction |
4130 Chromoly, Natch tubing, double-butted tapered fork blades, TIG welded, ED coated |
Rear Dropout Configuration |
Horizontal slotted with optional vertical dumpout |
Rear Hub Spacing |
"Gnot-Boost" 145mm |
Front Hub Spacing |
15 x 110mm (Surly axle included) |
Rear Brake |
Disc - 51mm I.S. (203mm max rotor) |
Front Brake |
Disc - 51mm I.S. (203mm max rotor) |
Head Tube |
Ø44mm |
Steerer Tube |
Ø28.6mm (1-1/8") |
Crown Race |
Ø30mm (1-1/8") |
Stock Headset Upper (S.H.I.S) |
ZS44/28.6 |
Stock Headset Lower (S.H.I.S) |
EC44/30 |
Seat Collar |
Ø33.1mm |
Seatpost |
Ø30.9mm |
Front Derailleur (Clamp) |
High direct mount top-pull (Ø34.9mm) |
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Max Chainring (CL) [3] |
1x (Mtn): 33T |
Bottom Bracket |
73mm threaded (1.37" x 24TPI) |
Tire Clearance Frame [1]/[2] |
26 x 3.0" |
Tire Clearance Fork [1] |
26 x 3.0" |
Rigid Fork Spec |
420 x 47mm |
Max Suspension Fork Length [4] |
490 x 47mm (26 100mm) |
Bottle Mounts Frame |
1 Standard |
Bottle Mounts Fork |
N/A |
Rack Mounts Frame |
N/A |
Rack Mounts Fork |
N/A |
Fender Mounts Frame |
N/A |
Fender Mounts Fork |
N/A |
Other Features |
Internal dropper post routing compatible |