Color: Tan

Only 10 pieces in stock!


The Udden features an innovative, fast-rolling, mud-clearing tread design for riding through the worst conditions without sacrificing pedaling efficiency on hardpack. Central chevrons maintain straight line speed while widely spaced side knobs allow you to carve through ruts and muddy corners and power over the top of slippery transitions. The Udden is a versatile tire — air them up for the pavement ride out of town, let it down to a lower PSI for improved traction when the county service ends. Our Stage 5S flat protection and a tubeless ready 120 TPI casing will keep you rolling through the harshest conditions.


  • Fast and efficient tire from hard packed dirt to loose gravel
  • 700x40C, 700x50C, 650Bx47
  • Tubeless Ready
  • Stage 5S Flat Protection
  • Rubberforce G gravel tire compound
  • Fast rolling, mud clearing tread design
  • Black or tan sidewall
ProtectionStage 5S Protection
Color OptionsBlack
Rim Fitment
Size Options700x40C (ETRTO 40-622)
Weight: 565 g
Max Pressure: 55 PSI

700x50C (ETRTO 50-622)
Weight: 680 g
Max Pressure: 50 PSI

650Bx47mm (ETRTO 50-584)
Weight: 635 g
Max Pressure: 50 PSI

Road Hazard Replacement Policy

American Classic stands by our tires, and want to keep our customers rolling. Our Road Hazard Replacement Policy offers our customers the promise that if you puncture or tear an American Classic tire while riding, and it no longer holds air, you can contact us for a claim form for a one-time 50% off the MSRP of the same or comparable product. The replacement program covers American Classic products purchased through authorized dealers, www.amclassic.com, or the American Classic branded Amazon store, and product included as original equipment components of a new bicycle purchase. The Road Hazard Replacement Policy does not include shipping and handling.


2-Year Warranty

American Classic tires have a 2-year warranty against defects in materials and workmanship. Any defective tires will be replaced at no charge. This warranty applies to the original owner with proof of purchase and is non-transferable and non-assignable. The original owner is responsible for all postage costs and transportation risks of the returned product(s). The warranty covers American Classic products purchased through authorized dealers, www.amclassic.com, or the American Classic branded Amazon store, and product included as original equipment components of a new bicycle purchase. The warranty does not cover normal wear and tear, product abuse, commercial usage, shipping damage, improper installation and/or maintenance, negligence, reckless handling, and/or unauthorized modification.

Hookless Compatibility

Some American Classic tires are compatible with hookless (Tubeless Straight-Side/TSS) rims that follow current E.T.R.T.O. standards.

  • Approved for use: Aggregate, Kimberlite, Krumbein, Udden, Wentworth
  • Not approved for use: Lamplighter, Timekeeper, Torchbearer

This list will be updated as we introduce more high performance tire models.
Please contact support@amclassic.com for warranty information and claim forms.

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