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Surly Dirt Wizard 26 x 2.75" 120tpi Tire

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BuyBuy PART NUM 947546
Surly Dirt Wizard 26 x 2.75" 120tpi Tire

An aggressive tread focused on traction and control in loose and varied terrain, with beveled leading edge dual row knobs in the center and well-spaced, siped edge knobs to dig into loose corners. Designed to be run on 50mm rims, the 2.75" casing inflates about 27.5" overall diameter (that's pert near 650b, folks), meaning you get some benefits of a larger diameter tire like ground approach angle and more footprint, with easier maneuverability of a smaller diameter tire, plus some extra pneumatic cushioning. Minimum rim size for these bad boys is 35mm.

Bead Seat Diameter: 559mm

Casing: 120tpi, with Kevlar bead (850g)

Surly Tire Instructions (PDF)

Surly Tire Geometries (PDF)
  • Color: Black
  • Intended Use: Mountain
  • ISO Diameter: 559 / 26" mtn
  • ISO Width (mm): 70 mm
  • Labeled Size: 26 x 2.75
  • Tire Bead: Folding
  • Tire Diameter: 26+
  • Tire Type: Clincher
  • Weight: 850
  • TPI: 120
  • PSI: 30
Surly Dirt Wizard 26 x 2.75" 120tpi Tire
Surly Dirt Wizard 26 x 2.75" 120tpi Tire

your price $90.00 + ships free

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Surly Dirt Wizard 29 x 3" 120tpi Tire
Surly Dirt Wizard 29 x 3" 120tpi Tire

your price $90.00 + ships free

Customer review of this product:

StarStarStarStarStar Surley dirt wizard

Product: Surly Dirt Wizard 26 x 2.75" 120tpi Tire
Ownership: a few months


It climbs a little better than than 2.4 trail king which is a great tire for Santa Barbara's rocky loose dry and I mean 4 year drought dry. Where it shines is descending in tight turns where you expect the back tire to break loose it just grips like mad. Amazing tire. I've run sub twenty pounds pressures but I like 22 ish for hauling butt downhill. No flats so far with tubeless set up. Try one it fits on most mountain bikes snug on my nomad 26 inch wheels which is now a full 27.5. In height. Great way to turn your old bike into new spec. 35 mm ID new rims are a must for decent tread shape any narrower tire would be too round.


None so far

Other Thoughts

Not cheap but added grip is crazy

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Surly is a leading manufacturer of bicycle frames, and was one of the first Fat Bike manufacturers.

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Surly Dirt Wizard 26 x 2.75" 120tpi Tire

your price $90.00 + ships free

BuyBuy PART NUM 947546