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Fast-Rolling 700c Commuter Tire

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Commuting to work or school on black ice just got faster and easier with the Xerxes. 140 studs provide unrivaled control on those morning rides where ice patches threaten your commute. When a layer of snow conceals black ice, the ultra-narrow profile easily slices through the fluff and gets straight to business providing extreme traction in these extreme conditions. Run the Xerxes at minimum pressure for traction performance, and maximum pressure for a quieter and faster ride on clean roads.

  • 140 Steel Carbide Studs
  • Fast-rolling center tread
  • Narrow profile to fit in most 700c frames
  • We design 45NRTH tires for extreme winter cycling applications. We do not recommend this product be used with power assist bikes as the additional torque and system weight can lead to pre-mature casing wear and stud loss.
Fits most bikes with side-pull or cantilever brakes
700c x 30mm (622/Road)
View Tire Geometry Chart
140 Steel Carbide Studs
20–25mm wide rims

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Audio: (chill inspirational music) Video: A man rides a fat bike quickly through a sunny, wintery, and wooded environment. "45NRTH Xerxes" text is overlaid as he rides and kicks up snow. Audio: [Narrator] Xerxes is our narrowest winter commuting tire. At 30 millimeters wide, it easily fits in cyclocross bikes and a lot of regular road bikes, too. Video: Rotating Xerxes tire is in view. Audio: Xerxes uses biting edges on the center tread and the side lugs, as well as alternating carbide studs to provide traction when encountering icy roads. Video: View zooms in and “Biting Edges: Increase grip on ice & snow.” text is shown to highlight the heightened front and back edges of the center lugs. “Carbide Studs: Increase grip on ice & snow.” text is shown to highlight studs on side lugs on the edge of the tread. Audio: The tightly-spaced center tread still rolls quickly and efficiently on dry sections. Video: “Tightly-Spaced Center Tread: Rolls efficiently.” text is shown to highlight the close proximity of the center lugs. Audio: Xerxes is available in the following sizes and constructions. Video: View zooms out and “700c x 30mm: 33TPI Steel Bead, (140 Carbide Studs)” text is shown for sizing. Audio: (calm music) Video: 45NRTH logo and “” text is shown, along with Instagram, Facebook, and Twitter logos.


  • Acceleration Traction
  • Braking Traction
  • Cornering Traction
  • Rolling Efficiency
  • Flotation
  • = Icy Conditions