Surly Troll MTB Frameset 2015

The Troll's geometry is that of a 26" wheeled mountain bike, but it's unlike most mountain bikes. It's got ample clearance for 28/38/50t mountain triple chainrings and room for big tires, up to 26 x 2.7". The gusseted front triangle, with its sloping toptube, gives ample standover clearance even when running high-volume rubber. Run a 100mm travel suspension fork if you like, or you might choose to leave the Troll's fork in place. Like the frame, it's made of 4130 CroMoly steel, giving a stout yet resilient, point-and-shoot ride.

There are a lot of notable features, like full line guides for derailleur and brake housing, fender eyelets, and disc and rim brake mounts. Both the frame and fork are equipped with mounts for front and rear racks, and the design allows the use of racks, fenders and disc brakes all at the same time.

It's worth taking a look at the rear dropout area. Similar to our Pugsley and Karate Monkey dropouts, the Troll has horizontal, rear-load dropouts with a derailleur hanger. Additionally, however, there's a dedicated area for anchoring a Rohloff hub OEM2 axle plate, and we've included threaded holes in the thick plate material for installing Surly trailer-mounting nuts.

Use it as a mountain bike, as a cruiser, commuter or touring rig. Use it as your go-to utility tractor. Try out different tires or handlebars. Add some racks and 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.

• Tubing: Surly 4130 CroMoly steel. TIG-welded. Main triangle double-butted

• Seatpost diameter: 27.2mm

• Seatpost clamp: 30.0mm Surly stainless, included

• Headset/stem: 1-1/8" threadless

• Bottom bracket: 73mm shell width, threaded standard English (1.37" x 24t)

• Braze-ons/extras: Full-length housing line guides for derailleurs and brakes; 2 sets of water 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

• Brake compatibility: Disc and rim brake compatible. Note: rear disc brake is limited to 165mm maximum rotor diameter and requires the use of Surly caliper adapter

• Tire clearance: 26 x 2.5" with rear wheel fully forward. Clearance for 2.7" tire with wheel farther back

• Chainring clearance: 28/38/50t

• Hub compatibility: 100mm O.L.D. front, 135mm O.L.D. rear

• Fork: TIG-welded 4130 CroMoly, 100mm suspension corrected, tapered straight blade. Low- and mid-blade fully threaded through-blade rack eyelets; fender mount eyelets at dropout; 1-18" x 260mm threadless steer tube, 51mm disc mount, removable cantilever pivots, line/housing guides

• Colour: Agent Orange, Not so Dark Black and Egg Plant

Occasionally, without notice, manufacturers change product design and/or specifications.