Donnelly X'Plor MSO 650b Foldable Bead Tire 5061-509

Donnelly X'Plor MSO 650b Foldable Bead Tire

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Really. If it's not up to snuff after you use it (a couple times) you can still bring it back.

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Show Description

Bridge the gap between chasing pavement and blazing your own trail. Designed for mixed conditions from off-road touring to gravel racing, the X'Plor MSO fits cyclocross, commuter or touring bikes.

  • Smooth-rolling centre knobs and aggressive shoulder lugs provide traction and durability on dirt, trails or asphalt.
  • Soft rubber compound provides grip and shock absorption.
  • MSO is the airport code of Missoula, Montana, home of the Adventure Cycling Association.
  • This tire requires a tube.

Tech specs

Show Tech specs
Weight 546g
Ideal for
  • Cycle commuting
  • Cycle touring
  • Cyclocross
Tire type Clincher
Wheel position
  • Rear
  • Front

The bead holds the tire onto the rim. Beads may be hoops of wire, or made of a flexible material which allows them to be folded compactly. Folding tires are easier to store or pack on trips.

Tire size 650B X 42
Recommended PSI

Inflating your tires over the recommended PSI (pounds per square inch) could cause your tube and/or tire to rupture.


ISO/ETRTO universal tire sizing system number for matching the correct tire to the rim.


Threads per inch. Tires with a higher TPI tend to be more supple and lighter, with less rolling resistance, but are less durable.

Made in Taiwan