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Surly 1 x 1 Bicycle

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One this page: Surly 15" 1 x 1 single speed bike

Surly Bikes was started in 1998 by Quality Bicycle Products, headquartered in Minnesota. The company designs bicycles, frames and components.

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Surly 15" 1 x 1 single-speed bicycle. Used, $650.00

Surly no longer makes the 1 x 1, which underwent several changes during its production life. The maker posted this description:

Dig the 1x1, a singlespeed mountain bike. It was designed for 26" wheels, big tires (clearance for 2.75"), and single cog and ring drivetrains. Run it with a freewheel, a fixed cog or if you like with an internal gear hub. The 1x1 is made of 4130 CroMoly tubing of our own design, with a custom double-butted main triangle and triple-butted fork blades for a tough yet responsive, lively ride. The geometry is pretty straightforward… it rides like a mountain bike. Chainstays are heat-treated for durability. The fork can be replaced with a 100mm-travel suspension fork, but we've maintained good standover clearance, Clarence.

Specs on this bike:

• 26" wheels: Weinmann Zac 19 double-wall rims laced with 32 DT 15/16g spokes. The front hub is a quick-release Specialized, while the rear is a Surly Fixed/Free nutted hub. The flanges are pretty far apart to strengthen the wheel.
• Rear flip/flop hubs
• The freewheel is an ACS Claws 20-tooth.
• Haro 3-piece crankset made of tubular CrMo with an Oddysey bottom bracket.
• Avid Single Digit Ti V-brakes. The Avid Single Digit Ti brake calipers have new Koolstop Eagle Claw pads.
• Avid FR-5 brake levers
• Ritchey Pro seat post
• Salsa FlipOff seatpost quick release
• Cane Creek threadless headset
• Profile Boa stem and Easton EA30 bar

Lightly used and ready to go anywhere.

Close-up of the Surly double-sided rear hub

A close-up of the track dropout and freewheel. Note that the bike comes with rack/fender eyelets.

A close-up of the Specialized front quick-release hub.

The Haro hollow-Cro-Moly crankset.

The left crank arm and part of the Odyssey bottom bracket.

The Profile Boa stem sitting on top of a carbon fiber spacer.

Front view of the Easton EA30 bars and the Profile stem.

One of the Avid FR-5 brake levers.

The Avid Single Digit Ti brake calipers have new Koolstop Eagle Claw pads.

The Ritchey Pro seat post.

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From the March, 1917 issue of "Cycling":

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