Skip to main content.
Bikes. Parts. Chaos.
Safety
Begin typing to search, use arrow keys to navigate, click or press Enter to select an item.

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. It’s got 51mm I.S. disc caliper mounts for braking satisfaction. The fork can be replaced with a 100mm-travel suspension fork, but we’ve maintained good standover clearance, Clarence.

After many years in our line-up, it may seem odd to keep the 1x1 around. 26˝ wheels aren’t as popular as they once were, at least here in the U.S., but 26˝ is still a very capable wheel size, and works especially well on smaller frames for shorter folks. Plus, the 1x1 handles great, and can be built up a hundred different ways. It makes as good a street bike as it does an off-road bike. You could build it with 65mm Marge Lite rims, or 50mm Rabbit Holes and have yourself a mid-fat. The possibilities boggle the mind. We sell it as a frameset. The finish, as on all our frames, is durable powdercoat

Specifications

1x1 Geometry 2015 1x1 Geometry
units:

Select a few bike sizes to compare.

SIZE xSmall (14) Small (16) Medium (18) Large (20) xLarge (22)
Reach 14.8 376.5 15.7 398.6 16.6 420.8 17.2 436.4 17.5 445.6
Stack 21.7 551.0 22.1 560.5 22.4 569.9 23.0 584.1 23.7 603.0
Head Tube Angle 71.0° 71.0° 71.0° 71.0° 71.0°
Head Tube Length 3.5 90.0 3.9 100.0 4.3 110.0 4.9 125.0 5.7 145.0
Seat Tube Length 14.0 355.6 16.0 406.4 18.0 457.5 20.0 508.8 22.0 558.8
BB Drop 1.6 40.0 1.6 40.0 1.6 40.0 1.6 40.0 1.6 40.0
Wheelbase 39.8 1011.9 40.8 1037.3 41.8 1062.6 42.6 1083.2 43.3 1098.8
Chainstay Length 16.5 419.0 16.5 419.0 16.5 419.0 16.5 419.0 16.5 419.0
Top Tube Length, Actual 20.9 532.0 21.6 549.0 22.4 570.0 23.2 590.0 23.9 608.3
Top Tube Length, Effective 21.5 546.0 22.5 571.0 23.5 596.0 24.3 616.0 24.8 631.0
Seat Tube Angle 73.0° 73.0° 73.0° 73.0° 73.0°
Standover Height 28.2 717.0 29.3 745.0 30.5 774.0 31.7 804.0 33.0 838.0
Fork Length 17.8 453.0 17.8 453.0 17.8 453.0 17.8 453.0 17.8 453.0
Fork Rake 1.6 40.0 1.6 40.0 1.6 40.0 1.6 40.0 1.6 40.0

All dimensions are preliminary and subject to change * Standover is measuered from the top of the TT, at the center, with a tire measuring approximately Ø676mm

Select a few bike sizes to compare.

SIZE xSmall (14) Small (16) Medium (18) Large (20) xLarge (22)
Reach 14.8 376.5 15.7 398.6 16.6 420.8 17.2 436.4 17.5 445.6
Stack 21.7 551.0 22.1 560.5 22.4 569.9 23.0 584.1 23.7 603.0
Head Tube Angle 71.0° 71.0° 71.0° 71.0° 71.0°
Head Tube Length 3.5 90.0 3.9 100.0 4.3 110.0 4.9 125.0 5.7 145.0
Seat Tube Length 14.0 355.6 16.0 406.4 18.0 457.5 20.0 508.8 22.0 558.8
BB Drop 1.6 40.0 1.6 40.0 1.6 40.0 1.6 40.0 1.6 40.0
Wheelbase 39.8 1011.9 40.8 1037.3 41.8 1062.6 42.6 1083.2 43.3 1098.8
Chainstay Length 16.5 419.0 16.5 419.0 16.5 419.0 16.5 419.0 16.5 419.0
Top Tube Length, Actual 20.6 522.8 22.5 570.8 22.9 582.9 23.7 601.1 24.4 618.9
Top Tube Length, Effective 21.5 546.0 22.5 571.0 23.5 596.0 24.3 616.0 24.8 631.0
Seat Tube Angle 73.0° 73.0° 73.0° 73.0° 73.0°
Standover Height 28.2 717.0 29.3 745.0 30.5 774.0 31.7 804.0 33.0 838.0
Fork Length 17.8 453.0 17.8 453.0 17.8 453.0 17.8 453.0 17.8 453.0
Fork Rake 1.6 40.0 1.6 40.0 1.6 40.0 1.6 40.0 1.6 40.0

All dimensions listed in millimeters, unless noted * Standover is measured from the top of the TT, at the center, with a tire measuring approximately Ø676mm

Select a few bike sizes to compare.

SIZE X-Small Small Medium Large X-Large
Head Tube Angle 71.0° 71.0° 71.0° 71.0° 71.0°
Head Tube Length 3.5 90.0 3.9 100.0 4.3 110.0 4.9 125.0 5.7 145.0
Seat Tube Length 14.0 355.6 16.0 406.4 18.0 457.2 20.0 508.0 22.0 558.8
BB Drop 1.6 40.0 1.6 40.0 1.6 40.0 1.6 40.0 1.6 40.0
Wheelbase 39.8 1012.0 40.8 1037.0 41.9 1063.0 42.6 1083.0 43.3 1099.0
Chainstay Length 16.5 419.0 16.5 419.0 16.5 419.0 16.5 419.0 16.5 419.0
Top Tube Length, Actual 20.9 532.0 21.6 549.0 22.4 570.0 23.2 590.0 23.9 608.3
Top Tube Length, Effective 21.5 546.0 22.5 571.0 23.5 596.0 24.3 616.0 24.8 631.0
Seat Tube Angle 73.0° 73.0° 73.0° 73.0° 73.0°
Standover Height 28.3 718.0 29.4 746.0 30.5 774.0 31.7 804.0 33.0 837.0
Fork Length 17.8 453.0 17.8 453.0 17.8 453.0 17.8 453.0 17.8 453.0
Fork Rake 1.6 40.0 1.6 40.0 1.6 40.0 1.6 40.0 1.6 40.0

* Measurements use tire with diameter of 676mm (Tioga 2.1" DH), and taken from middle of toptube to level ground

Select a few bike sizes to compare.

SIZE x-small small medium large x-large
Head Tube Angle 71.0° 71.0° 71.0° 71.0° 71.0°
Head Tube Length 3.5 89.0 4.0 102.0 4.5 114.0 5.3 134.0 6.3 159.0
Seat Tube Length 14.0 355.6 16.0 406.4 18.0 457.2 20.0 508.8 22.0 558.8
BB Drop 1.7 42.5 1.7 42.5 1.7 42.5 1.7 42.5 1.7 42.5
Wheelbase 39.9 1013.5 40.7 1034.0 41.5 1054.3 42.1 1070.1 42.7 1085.8
Chainstay Length 16.5 419.0 16.5 419.0 16.5 419.0 16.5 419.0 16.5 419.0
Top Tube Length, Actual 20.5 521.2 21.3 541.6 22.3 565.8 23.1 586.5 23.9 608.3
Top Tube Length, Effective 21.5 545.0 22.2 565.0 23.0 585.0 23.6 600.0 24.2 615.0
Seat Tube Angle 73.0° 73.0° 73.0° 73.0° 73.0°
Standover Height 28.1 714.9 29.2 742.9 30.5 773.8 31.8 806.9 33.1 841.6
Fork Length 16.3 413.0 16.3 413.0 16.3 413.0 16.3 413.0 16.3 413.0
Fork Rake 1.8 45.0 1.8 45.0 1.8 45.0 1.8 45.0 1.8 45.0

Measurements use tire with diameter of 676mm (Tioga 2.1 DH), and taken from middle of toptube to level ground

Tubing

Stash Green:

4130 CroMoly steel. Main triangle double-butted. TIG-welded.

Pepto Pink: 

4130 CroMoly steel. Main triangle double-butted. TIG-welded. ED Coated.

Cash Black:

100% CroMoly steel. Main triangle double-butted. TIG-welded. ED Coated

Rear Dropouts

Investment cast Surly track dropouts, 135mm spaced

Braze-ons

Stash Green & Pepto Pink:

51mm disc tabs, rear brake toptube housing stops, seatstay mounted disc housing guides, fender eyelets front and rear and dual water bottle mounts.

Cash Black:

I.S. disc tabs and removable cantilever bosses front and rear, fender eyelets front and rear, and dual water-bottle mounts

Seatpost diameter

27.2mm

Seatpost clamp

Stash Green & Pepto Pink:

30.0mm Surly stainless, included

Cash Black: 

30.0mm, Surly Constrictor included

Headset/Steerer Tube

1-1/8" threadless

Bottom bracket shell

73mm wide, threaded English 1.37" x 24t

Tire clearance

Stash Green & Pepto Pink:

26 x 2.75"

Cash Black:

Fatties Fit Fine (FFF) chainstays and our custom fork give room for tires up to 2.75" with plenty of mud and fender clearance left over. Seriously!

Fork

Stash Green & Pepto Pink:

Suspension corrected for 100mm travel suspension fork. 100% CroMoly, tapered and butted, striaght-blade.

Cash Black:

Suspension corrected for 80mm travel suspension fork. 100% CroMoly

Colors

Stash Green, Pepto Pink & Cash Black

Support

Frame Warranty

LIMITED WARRANTY

This Surly product is warranted against defects in materials and workmanship for three years from the date of retail purchase of the product, subject to the limitations detailed below. Save your dated receipt for proof of purchase.

This warranty does NOT cover the following:

  • Damage due to improper assembly or follow-up maintenance or lack of skill, competence or experience of the user or assembler
  • Products that have been modified, neglected, used in competition or for commercial purposes, misused or abused, involved in accidents or anything other than normal use
  • Installation of components, parts or accessories not originally intended for or compatible with bicycle as sold
  • Damage or deterioration to the paint, surface finish, aesthetics or appearance of the product
  • Normal wear and tear
  • Labor required to remove and/or refit and re-adjust the product within the bicycle assembly

This limited warranty is expressly limited to the repair or replacement of a defective product, at the option of Surly, and is the sole remedy of the warranty. This limited warranty applies only to the original purchaser of the Surly product and is not transferrable. This warranty applies only to products purchased through an authorized dealer or distributor. In no event shall Surly be liable for any loss, inconvenience or damage, whether direct, incidental, consequential, or otherwise resulting from breach of any express or implied warranty or condition, of merchantability, fitness for a particular purpose, or otherwise with respect to our products except as set forth herein.

This limited warranty gives the consumer specific legal rights, and those rights and other rights may vary from place to place. This limited warranty does not affect your statutory rights.

TO THE EXTENT NOT PROHIBITED BY LAW, THESE WARRANTIES ARE EXCLUSIVE AND THERE ARE NO OTHER EXPRESS OR IMPLIED WARRANTIES OR CONDITIONS INCLUDING WARRANTIES OR CONDITIONS OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.