Surly Pugsley (Grassy Green)
SUR-BK-PGSLY-18-GRN
A rugged fat bike in Grassy Green built to float over snow, sand and mud where a normal mountain bike simply digs in, with enough versatility to adapt to whatever terrain you throw at it.
Overview
Pugsley was one of the bikes that proved fat tires weren't a gimmick — massive flotation and traction let it cross terrain that stops conventional bikes cold. The frame's 135mm-spaced dropouts and derailleur hanger keep it compatible with a wide range of drivetrains, so it adapts to how you want to build or maintain it.
This build runs a Deore 10-speed drivetrain with a SRAM X5 2-speed crank, Shimano chain, and Deore cassette and derailleurs, stopped by Avid BB7S-MTN mechanical disc brakes. The 26 x 4" tires on wide rims deliver the flotation this bike is known for, while the internal ED coating protects the steel frame against corrosion in the wet, muddy conditions it's designed to handle.
It's a bike for riders who need genuine all-terrain capability — not just occasional gravel, but sand, snow, mud, and the kind of surfaces where tire volume matters more than anything else on the spec sheet.
Why You'll Like It
Massive flotation from 4-inch tires
The 26 x 4" tire setup provides exceptional traction and float across snow, sand, and mud — terrain that would stop a standard mountain bike.
Dependable stopping power in any weather
Avid BB7S-MTN mechanical disc brakes keep working reliably in wet or muddy conditions where rim brakes would struggle.
A versatile 10-speed drivetrain
The Deore cassette and derailleurs paired with a SRAM X5 crank give a wide enough gear range for both loaded crawling and faster riding on firmer ground.
Comfortable ergonomics for long days
Ergon GP1 grips reduce hand fatigue on long rides, and the Salsa ProMoto 2 handlebar helps keep your position comfortable over rough terrain.
Wheel-swap flexibility
The frame's compatibility with different rim widths and offsets means you can adjust the build for different tire setups as your riding needs change.
Who Is It For?
Pugsley is for the rider who regularly rides terrain that defeats a normal mountain bike — deep sand, snow, river crossings, or thick mud where traction and flotation matter more than speed.
In India, that means high-altitude snow routes in the Himalayas, dry riverbeds, or coastal sand stretches where a standard mountain bike's tires simply can't get purchase.
It also appeals to riders who want one genuinely capable all-terrain bike for expedition-style riding rather than a bike optimized for a single surface type.
Good to Know
Run tire pressure low for sand and snow to maximize the flotation this bike is built around, and bump it up on firmer surfaces for better rolling efficiency.
The internal ED coating protects the frame from corrosion, but rinsing off mud and salt after wet rides keeps components running smoothly.
If you plan to run wider rims than stock, check compatibility with the recommended crank options to avoid tire or chain rub.
Technical Specifications
- Frame: Surly 4130 CroMoly steel, main triangle double-butted, TIG-welded, ED coated
- Fork: 447mm axle to crown, tapered straight blade, 4130 CroMoly, 51mm IS disc mount, 135mm-spaced dropouts
- Bottom Bracket: 100mm wide, standard English threading (1.37" x 24T)
- Chain: Shimano
- Crank: SRAM X5, 2-speed
- Shift Levers: Microshift Retroshift thumb
- Cassette: Shimano Deore
- Front Derailleur: Shimano Deore
- Rear Derailleur: Shimano Deore
- Grips/Bartape: Ergon GP1
- Handlebar: Salsa ProMoto 2
- Seatpost: 27.2mm, 30.0mm seatpost clamp diameter
- Front Brake: Avid BB7S-MTN
- Rear Brake: Avid BB7S-MTN
- Front Wheel: Mega Lite / Surly hub
- Rear Wheel: Mega Lite / Surly hub
- Tire: 26 x 3.8" on 82mm rims (requires Surly Mr. Whirly Offset Double crank, O.D. Crank, or truncated cassette to avoid rub; standard triple gearing works with 65mm rims)
- Weight (Approx): 15.02kg
Additional Information
- Country of Origin: China
- Imported By: Happy Earth Enterprises LLP, 3/8 Ground Floor, Opp. MG Infant School, Bilekahalli, Bengaluru - 560076, India.
- Net Quantity: 1N
- Customer Care Address: 291, 10 Main, 5 Block, Jayanagar, Bangalore - 560041. Ph: (080)47183232, Email: support@bumsonthesaddle.com
- Commodity: Bicycles
