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Surly Bikes


Surly Troll

When you buy a bike from Aventuron, not only will your bike ship for free, but you will receive a bike that is ready to ride out of the box.

We assemble and tune your bike, then repackage it to ship. When you receive your new bike it will be very easy to assemble.  You will have to attach the front wheel, handlebar, seatpost and pedals. Most bikes do not include pedals, but we have an extensive pedal selection.  We are a family-owned and operated business and look forward to having you as a customer.

Use the Troll as a mountain bike, cruiser, commuter or touring rig. Make it your go-to utility tractor. Try out different tires and handlebars. Add some racks, build it with gears, or strip it down to a singlespeed drivetrain. Take it camping, ride it to the grocery store or session on your favorite single-track. Build it up, ride it for a while, then reinvent it.
  • Surly 4130 chromoly steel, main triangle double-butted
  • TIG-welded,Horizontal slotted with derailleur hanger, Gnot-Boost spacing allows the use of 135mm QR hub, 142 x 12mm thru-axle or 148 x 12mm Boost hubs. Features Rohloff torque arm slot and threaded eyelets for fenders, racks and Surly trailer mounts
  • 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
  • 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 adaptor (included with frames and bikes)
  • Frame is ED Coated for increased life expectancy
  • Tire clearance for 26 x 3"





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


Surly Troll, 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



Shimano Deore 26/36/48t

Bottom Bracket

Shimano Octalink 73x118

Front Derailleur

Shimano Deore FD-T6000

Rear Derailleur

Shimano Deore RD-T6000

Cassette / Cog

Microshift 10spd 11-36t


KMC X10-NP 10spd


Grips / Bar Tape

Velo Black


Surly Moloko


ProMax DA-296


Cane Creek 10

Front Shifter

Microshift SL-M10

Rear Shifter

Microshift SL-M10

Brake Levers

Avid FR-5

Front Brake

Avid BB7

Rear Brake

Avid BB7

Front Rotor

SRAM Cleansweep 180mm

Rear Rotor

SRAM Cleansweep 160mm


WTB Volt Sport


30mm (Surly stainless included)



Rear Shock



Front Hub

Shimano Deore M525 36h

Rear Hub

Shimano Deore M525 36h

Front Thru Axle / QR


Rear Thru Axle / QR



Alex Adventurer 2 36h


Surly ExtraTerrestrial 26 x 2.5"



Not included



* Specifications are subject to change without notice

Frame measurements (mm) XS SM MD LG XL
A. BB Drop 40 40 40 40 40
B. Chainstay Length 425 425 425 425 425
C. Fork Length - Axle to Crown 420 420 420 420 420
D. Fork Offset 43 43 43 43 43
E. Head Tube Angle (deg) 71 71 71 71 71
F. Headtube Length 125 135 145 160 180
G. Reach 371 393 415 431 446
H. Seat Tube Angle (deg) 73 73 73 73 73
I. Seat Tube Length - Center to Top 336 406 457 508 559
J. Stack 551 561 570 585 604
K. Standover 720 749 778 809 843
L. Top Tube Length (Effective) 545 570 595 615 630
M. Wheelbase 1016 1041 1066 1086 1108
Component measurements (mm)
Crank Arm Length 170 170 175 175 175
Handlebar Width 710 710 710 710 710
Handlebar Rise / Drop - - - - -
Stem Length 90 90 100 110 120
Stem Angle (deg) 7 7 7 7 7

* All dimensions are preliminary and subject to change


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