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Surly Pugsley Frameset 2013

Item #: FR233M00
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Surly Pugsley Frameset 26" 2013

In the bike world, if road bikes were open-wheel racecars, the Pugsley would most certainly be a humvee. Much like a humvee the Pugsley was built to go where no other bikes could. The large-volume, low-pressure tires allow maximum traction and floatation to get you over and through unpedalable terrain such as mud, snow, rocks, shallow water, roots, and sand. Here is the rugged, almost bomb-proof Pugsley frame to get you started on your new fat bike build, or to replace your current less mobile, washed-up frame.

The Pugsley frame is constructed from 4130 chromoly steel and has 135mm-spaced horizontal rear-loading dropouts with a derailleur hanger. This enables the options for either a derailleured drivetrain or an internally-geared hub. Singlespeed, fixed gear, cassette…you choose. Like the frame, the fork is compatible with a 135mm rear mountain hub, making it easier to install and remove. This is greatly beneficial as you’ll have the ability to carry another full gear group, such as a fixed cog or a singlespeed freewheel on the front wheel so that you have it with you as an additional option or for emergency purposes.      

Frame Characteristics:


100% Surly 4130 CroMoly steel. Main triangle is double butted. TIG welded

Rear dropouts

Surly horizontal dropouts with derailleur hanger, 135mm spaced, offset 17.5mm

Brake Compatibility

51mm IS disc mounts. A rear brake adapter should be used on the fork

Braze- On’s

Dual water bottle mounts, toptube cable housing guides for use with continuous housing, fender and rack eyelets

Seat post Diameter


Seatpost Clamp

30mm Surly stainless, included. Silver



Front Derailleur

Direct mount, 28.6mm diameter (derailleur is not included)

Bottom Bracket Shell

100mm Wide, 1.37” x 24t

Chainring Clearance

Compact triple: 22-32-44t


Suspension corrected (100mm travel) 447mm axle to crown, tapered straight blade, 4130 CroMoly. IS rear disc mount and removable cantilever pivots spaced 120mm. 135mm spaced dropouts


Measurements in MM x-small small medium large x-large  
Seat Tube Length
365.5mm 406.4mm 457.2mm 508.0mm 558.8mm  
Top Tube Length
545.8 554.3 566.5 581.9 600.0  
Effective Top Tube Length
560.0 580.9 595.6 610.1 625.0  
Head Tube Angle 70.0° 70.5° 70.5° 70.5° 70.5°  
Seat Tube Angle 73.0 72.0 72.0 72.0 72.0  
BB Drop 55.0mm 55.0mm 55.0mm 55.0mm 55.0mm  
Chainstay Length 448.1 448.1 448.1 448.1 448.1  
Wheelbase 1061.6 1067.4 1082.4 1097.3 1112.7  
Standover Height 734.9 758.7 786.5 819.6 853.0  
Head Tube Length 95.0 102.0 112.0 130.0 150.0  
Fork Length 447.0 447.0 447.0 447.0 447.0  
Fork Rake 43.0 43.0 43.0 43.0 43.0

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Free Shipping Offer

Get free Standard Shipping with your $50 purchase today! Just choose Standard Shipping during checkout.

Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items.