The Troll is a versatile dirt road touring bicycle with all the bells and whistles necessary for an extended tour.
Trolling the Limits of Exploration
Troll is the expedition touring bike that started us down the winding, mostly unpaved path of dirt road touring. It’s fully-equipped to get you out there — way out there — for very long periods of time and its highly-versatile dropout design allows you to do so in a variety of ways. Singlespeed? Rohloff? Pulling a trailer? Yep. All of that and so much more.
Chances are, Troll can handle most of the ideas that are bouncing around your noggin. Feel like riding from Alaska to the tip of South America? You can load everything you need on Troll and still have plenty of space for “souvenirs.” Troll can handle it even if you don’t think you can.
“Troll believes in you, so you don’t have to."
- Compatible with both disc and rim brakes
- All the accessory barnacles you could ever possibly ask for including rack and fender, multiple three-pack mounts and mid-blade.
- Gnot-Boost rear spacing with Rohloff torque arm slot and Bill/Ted trailer mount
- Clearance for 26" x 3" tires (26 x 2.8" with fenders)
- 5/5 with World Touring
- 5/5 with Frame Versatility
- 4/5 with Off-Road Touring
- 5/5 with Cargo Load Stability
NOTE: You can ride your bike wherever the hell you want, but this is what we think this bike is best at.
|Frame||Horizontal slotted with derailleur hanger; Surly “Gnot Boost” 135, 142, and/or 148mm hub spacing compatibility|
420mm axle-to-crown x 43mm offset, tapered and butted straight blade, 4130 CroMoly.
420mm axle-to-crown x 43mm offset, tapered and butted straight blade, 4130 CroMoly. 51mm I.S. disc mount
|Seatpost Clamp||Surly stainless, 30mm|
|Headset||Cane Creek 10 1-1/8"|
|Brakes||Avid BB7 Cleansweep 180/160 rotors|
|Brake Levers||Avid FR-5|
|Stem||ProMax 4 bolt 31.8|
|Saddle||WTB Volt Sport|
|Seatpost||ProMax 27.2 350L offset|
|Crankset||Shimano Deore 26/36/48t|
|Bottom Bracket||Shimano Octalink 73x118|
|Front Derailleur||Shimano Deore FD-T6000|
|Rear Derailleur||Shimano Deore RD-T6000|
|Cog or cogset||Microshift 10spd 11-36t|
|Front Hub||Shimano Deore M525 36h QR|
|Rear Hub||Shimano Deore M525 36h QR|
|Rims||Alex Adventurer 2 Tubeless Ready|
|Tires||Surly ExtraTerrestrial 26 x 2.5"|
Complete bike spec subject to change
|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|
|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|
4130 Chromoly, Natch tubing, double-butted main triangle, TIG welded, ED coated
4130 Chromoly, Natch tubing, double-butted tapered fork blades, TIG welded, ED coated
|Rear Dropout Configuration||
Horizontal slotted with optional vertical dumpout
|Rear Hub Spacing||
12 x 142mm or 12 x 148mm (axle not inlcuded)
10 x 135mm with Surly 10/12 Adapter Washers (included)
|Front Hub Spacing||
10 x 100mm
Disc - 51mm I.S. (160mm max rotor) 
Rim - Canti (removable posts)
Disc - 51mm I.S. (203mm max rotor)
Rim - Canti (removable posts)
|Stock Headset Upper (S.H.I.S.)||
|Stock Headset Lower (S.H.I.S.)||
|Front Derailleur (Clamp)||
High direct mount top-pull (Ø28.6mm)
26mm offset adapter (included) for 142 or 135mm rear hub spacing
29mm offset adapter (not included) for 148mm rear hub spacing
|Max Chainring (CL)||
1x (Mtn): 42T
2x (Mtn): 34/44T
3x (Mtn): 24/36/48T
1x (Boost): 44T
2x (Boost): 40/46T
73mm threaded (1.37" x 24TPI)
|Tire Clearance Frame /||
26 x 3.0" (26 x 2.8" with fenders)
|Tire Clearance Fork ||
26 x 3.0" (26 x 2.8" with fenders)
|Rigid Fork Spec||
420 x 43mm
|Max Suspension Fork Length ||
|Bottle Mounts Frame||
2 Three-Pack (XS)
1 Standard + 2 Three-Pack (S - XL)
|Bottle Mounts Fork||
|Rack Mounts Frame||
Yes (upper and lower threaded)
|Rack Mounts Fork||
Yes (upper, lower, and mid-blade threaded)
|Fender Mounts Frame||
|Fender Mounts Fork||
Dedicated Rohloff cable routing and mount for OEM 2 axle plate
Dedicated Surly Trailer mounts
 Different tire and rim combinations will result in different clearances.
 Depending on drivetrain configuration, tire clearance may be limited by the chain and not frame.
 Listed chainring clearance is worst case scenario. Clearances vary widely depending on components and configurations.
 Suspension fork length listed at full extension (not at sag)
 Rear disc brake requires Surly’s proprietary brake mount adapter.
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.