Surly Troll
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Surly Troll Surly Troll Surly Troll

Surly Troll

Product Code BKATTR0040
Other products by Surly


    NOTE: Price applies to Online sales only, pricing may differ in our Retail store.
  • Availability: In our warehouse or with the distributor. Expect delivery in 2-3 days.
  • This item comes with free shipping.


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.

Frame Horizontal slotted with derailleur hanger; Surly “Gnot Boost” 135, 142, and/or 148mm hub spacing compatibility
Fork 420mm axle-to-crown x 43mm offset, tapered and butted straight blade, , 4130 CroMoly. 51mm I.S. disc mount
Seatpost clamp Surly Stainless, 30.0mm
Crankset Shimano LX 26/36/48t
Bottom Bracket Shimano BB-MT800
Front Derailleur Shimano Deore FD-M611-D
Rear Derailleur Shimano Deore RD-T610 10 spd
Cog or Cassette Shimano HG-50 10spd 11-36t
Chain KMC X10 10spd
Headset Cane Creek 40
Brakes Avid BB7, 160mm rear rotor and 180mm front rotor
Brake Levers Avid FR-5
Shifters Microshift, SL-M10
Stem HL 31.8mm
Handlebar Jones Loop, 710mm
Saddle WTB Volt Sport
Seatpost Kalloy SP-342
Front Hub Shimano Deore M525 36h
Rear Hub Shimano Deore M525 36h
Rims Alex Adventurer 2 36h
Tyres Surly ExtraTerrestrial 26 x 2.5"

*Specifications subject to change

Geometry (in) XS S M L
Seat Tube Length
13.2 16.0 18.0 20.0
Top Tube Length
20.9 21.5 22.4 23.2
Effective Top Tube Length
21.5 22.4 23.4 24.2
Head Tube Angle 71.0 71.0 71.0 71.0
Seat Tube Angle 73.0 73.0 73.0 73.0
BB Drop 1.6 1.6 1.6 1.6
Chainstay Length 16.7 16.7 16.7 16.7
Wheelbase 40.0 41.0 42.0 42.8
Standover Height 28.3 29.5 30.6 31.9
Head Tube Length 4.9 5.3 5.7 6.3
Fork Length 16.5 16.5 16.5 16.5
Fork Offset 1.7 1.7 1.7 1.7
Stack 21.7 22.1 22.4 23.0
Reach 14.6 15.5 16.3 17.0

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