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Bikes. Parts. Chaos.

When we designed our Troll frame we set out to design a bike frame that would be, to its rider, a blank canvas upon which they could paint a masterpiece of versatility. The kind of frame that could be built using any kind of parts for any kind of purpose, be it riding the local backyard singletrack, getting to work, the store, or around the whole darn world.

Those familiar with the standard Troll frame know that you can pretty much put anything on it you want. Disc brakes? Yep. Linear pull or cantilever brakes? Indeed. Racks, disc brakes and fenders all at once, both front and rear? Totally. The point is that the World Troller can do everything the standard Troll frame can, plus it’ll bust in half via two S&S Machine frame couplers so you can fit it in an airline approved travel case, potentially costing you less to get your bike to whatever far-flung location you have decided to explore (make sure to check with your airline). We do advise that to properly make use of the option this frame provides, a certain level of mechanical aptitude is required. You have been warned.

Compared to 700c wheels, the 26” wheels of the World Troller have some advantages. 26” wheels are stronger than their larger counterparts, can be easier to find parts and tires for in many places around the world and pack more easily because of their smaller size. The World Troller, buy a one-way ticket to anywhere and ride your ass back home.


World Troller Geometry

Select a few bike sizes to compare.

SIZE xSmall (14) Small (16) Medium (18) Large (20) xLarge (22)
Head Tube Angle 71° 71° 71° 71° 71°
Head Tube Length 3.5 90 3.9 100 4.3 110 4.9 125 5.7 145
Seat Tube Length 14 355.6 16 406.4 18 457.5 20 508.8 22 558.8
BB Drop 1.6 40 1.6 40 1.6 40 1.6 40 1.6 40
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 16.5 419 16.5 419 16.5 419 16.5 419
Top Tube Length, Actual 20.9 532 21.6 549 22.4 570 23.2 590 23.9 608.3
Top Tube Length, Effective 21.5 546 22.5 571 23.5 596 24.3 616 24.8 631
Seat Tube Angle 73° 73° 73° 73° 73°
Standover Height 28.2 717 29.3 745 30.5 774 31.7 804 33 838

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


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

Rear Dropouts

Horizontal slotted with derailleur hanger, 135mm O.L.D. Features Rohloff torque arm slot and threaded eyelets for fenders, racks and Surly trailer mounts.

Brake Compatibility

Disc and rim brake compatible. Disc mounts are 51mm IS Rim brake pivots are removable. Note: rear disc brake is limited to 160mm maximum rotor diameter and requires the use of Surly caliper adapter (included with frames and bikes).


Full-length Surly Trip Guide housing line guides for derailleurs and brakes; two sets of bottle cage mounts; removable post cantilever pivots; upper seatstay threaded barrels, mid-and low-blade fully threaded through-blade fork eyelets; threaded holes for racks, fenders and trailer mounting nuts; Rohloff OEM2 axle plate mounting slot.

Seatpost Diameter


Seatpost Clamp Diameter

30.0mm (Surly Stainless Included)

Headset/Steerer Tube

1-1/8" Threadless

Front Derailleur Clamp Diameter

28.6mm, top-pull or Shimano high direct mount

Bottom Bracket Shell

73mm shell width, threaded standard English (1.37" x 24t)

Chainring Clearance


Tire Clearance

26 x 2.75". Individual tire and rim combos affect tire clearance


TIG-welded tapered & butted 4130 CroMoly, 100mm suspension corrected, tapered straight blade. Low- and mid-blade fully threaded through-blade rack eyelets; fender mount eyelets at dropout; 1-1/8" x 260mm threadless steer tube, 51mm disc mount (203mm max. rotor diameter), removable cantilever pivots, two sets of bottle mounts on each fork blade. Note: you can’t always mount bottles on the fork with every rack.




Frame 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.