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Surly Pugsley Steel Frameset

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Product Description

The bike that started the wide tire revolution. Constructed of TIG-welded, double-butted Surly 4130 CroMoly, the Surly Pugsley is a go-anywhere, do anything snow bike. Capable of pulling double duty as a single speed or geared bike, the Pugsley has a high degree of redundancy built into its design. In the middle of nowhere? Hub failure not an option? The Pugsley uses an offset, 135mm fork, allowing the use of a rear mountain bike hub on the front wheel. Essentially riding with two rear wheels, you have the option of a second gear cluster, a single speed option, or simply run it as a fixie if it really hits the fan.The Pugsley was built with adventure in mind, and includes eyelets for fenders, upper and lower rear rack mounts, top-tube and seatstay guides for use with continuous shifter and brake housing, and dual water bottle bosses.The rear hub spacing of 135mm allows the use of any standard mountain bike hub. Paired with a set of off-set drilled rims, Pugsley wheels build up strong and durable. Aboard the Surly Pugsley, riders have successfully navigated all of the major winter endurance races across North America.

Product Highlights

  • Features
  • Geometry
  • Size Chart
  • • Accepts massive Large Marge rims and 26x4.0 tires
  • • Accommodates 4"-wide tires on 26" rims. Designed to provide increased stability, floatation, and traction on varied terrain.
  • • TIG-welded double-butted Surly 4130 CroMoly frame with rear-loading horizontal dropouts and derailleur hanger. International standard disc tab and removable cantilever pivots, spaced 120mm apart, for use with Surly Large Marge rims.
  • • Frame and fork dropouts are spaced at 135mm and offset 17.5mm, to the drive side, to compliment a wider chainline created by the use of a 100mm bottom bracket shell. Equal spacing and offset, of the fork and frame, allow front and rear wheels to interchange.
  • • Braze-ons: Eyelets for fenders, upper and lower rear rack mounts, top-tube and seatstay guides for use with continuous shifter and brake housing, dual water bottle bosses
  • • Component specs: 27.2mm seatpost, 30.0mm Constrictor seatpost clamp (included), 100mm bottom bracket shell, top-pull E-type front derailleur, 135mm hub, 22-32-44t chainring clearance, 1-/8" threadless headset
  • • 135mm hub spacing front and rear
  • • Includes adapter for building offset wheels
  • • Uses rear disc caliper adapters front and rear
  • • Wheels need to be built with 17.5mm offset (reverse dished)
  • • Specially drilled Large Marge rims specifically recommended for Pugsleys (offset requires offset drilling of spoke holes) *Adapter tool for building offset wheels comes with each Pugsley frame.
  • • For additional tech help and spoke info, see the Pugsley Wheel page
  • • Uses an E-type style front derailleur

Geometry for the Surley Pugsley

Small Medium Large X-Large
Seat Tube
(Center - Top)
Top Tube
Chain Stay
BB Drop 2.2"
Stand Over Height 29.3"
Head Tube 4.00"
Head Tube Angle 70.5° 70.5° 70.5° 70.5°
Seat Tube Angle 72.0° 72.0° 72.0° 72.0°