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Off-road touring can be a zesty enterprise, but it’s not without its perils. Bicycles are simple machines that are extremely efficient, but all simple machines carry along with them the chance of breaking down. This efficiency can get you in trouble if your bike decides to break down far away from the comforts of your parent’s basement. If you’re going to ride your bicycles where no one can see, you better take gear that’s up to the task.  Troll is up to the task.

Our Troll was once a simple mountain bike frame with a few extras that made it nice for touring. The Troll has evolved into a frame that has been pushed deeper into the category of off-road touring. Its geometry is no longer suspension corrected, which gives it more room for a larger frame bag. We’ve also adorned this frame with our Gnot-Boost spacing, allowing you to use any mountain bike hub whether it be 135mm QR, 12 x 142mm thru-axle, or 12 x 148mm Boost hub. The chainstay yoke has been redesigned to be fully compatible with 26+ tires and comes with the always-comfy Jones Loop bar. The dropouts still allow you to run disc brakes, fenders, a Rohloff hub, and racks simultaneously. It also comes with more braze-ons than you thought possible – there are four triple bottle mounts on the fork alone (don’t get excited, you can only run one Anything Cage per fork leg), as well as two more triple bottle mounts on the down tube.

Troll is a bike that has one purpose – and that purpose is to carry you as far away from society as possible. Man has known for eons the call of the indifferent forest. The inexorable march of time, and dumb shit like cell phones, have dulled our senses and made us afraid. Reclaim your animalistic tendencies atop Man’s greatest invention.

Specifications

Troll 2017 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 measured from the top of the TT, at the center, with a tire measuring approximately Ø676mm

Select a few bike sizes to compare.

SIZE XS S M L XL (Frameset Only)
Reach 14.6 371 15.5 393 16.3 415 17.0 431 17.6 446
Stack 21.7 551 22.1 561 22.4 570 23.0 585 23.8 604
Head Tube Angle 71.0° 71.0° 71.0° 71.0° 71.0°
Head Tube Length 4.9 125 5.3 135 5.7 145 6.3 160 7.1 180
Seat Tube Length 13.2 336 16.0 406 18.0 457 20.0 508 22.0 559
BB Drop 1.6 40 1.6 40 1.6 40 1.6 40 1.6 40
Wheelbase 40.0 1016 41.0 1041 42.0 1066 42.8 1086 43.6 1108
Chainstay Length 16.7 425 16.7 425 16.7 425 16.7 425 16.7 425
Top Tube Length, Actual 20.9 530.6 21.5 546.7 22.4 568.1 23.2 589.0 24.0 608.6
Top Tube Length, Effective 21.5 545 22.4 570 23.4 595 24.2 615 24.8 630
Seat Tube Angle 73.0° 73.0° 73.0° 73.0° 73.0°
Standover Height 28.3 720 29.5 749 30.6 778 31.9 809 33.2 843.0
Stem Length 3.5 90 3.5 90 3.9 100 4.3 110
Stem Angle 7° 7° 7° 7°
Handlebar Width 27.0 685 27.0 685 28.9 735 28.9 735
Crank Length 6.7 170 6.7 170 6.9 175 6.9 175
Fork Length 16.5 420 16.5 420 16.5 420 16.5 420 16.5 420
Fork Rake 1.7 43 1.7 43 1.7 43 1.7 43 1.7 43
Tubing

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

Rear Dropouts

2014 and earlier:
10 x 135mm QR

2017 and newer:
Horizontal slotted with derailleur hanger, 145mm Gnot-Boost 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).

Braze-ons/extras

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, 4 sets of triple bottle mounts, 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

27.2mm

Seatpost Clamp Diameter

30mm (Surly stainless included)

Headset/Steerer Tube

Pea Lime Pie Soup:

EC34/28.6 upper, EC34/30 lower

Get Gone Maroon and Steve's Pants Blue:

1-1/8" threadless

Front Derailleur Clamp Diameter

28.6mm, top-pull or Shimano high direct mount (adaptor included)

Bottom Bracket Shell

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

Chainring Clearance

24/36/48t

Tire Clearance

Pea Lime Pie Soup and Get Gone Maroon:

26 x 3"

Steve's Pants Blue:

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

Fork

Pea Lime Pie Soup:

TIG-welded tapered & butted 4130 CroMoly. 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 triple bottle mounts on each fork blade. Note: you can’t always mount bottles on the fork with every rack.

Get Gone Maroon:

TIG-welded tapered & butted 4130 CroMoly, non-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 (180mm max. rotor diameter), removable cantilever pivots, two sets of triple bottle mounts on each fork blade. Note: you can’t always mount bottles on the fork with every rack.

Steve's Pants Blue:

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 rac

Colors

Pea Lime Pie Soup

Black Forest (Frameset Only)

Get Gone Maroon

Steve's Pants Blue

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.