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Challenger MT445B tire size

Factory tire pairs for the Challenger MT445B (72 HP, ?):

  • 72 HP
Rear480/70R38RFront340/85R28F
Rear480/70R38R
Outside dia.
≈1,637mm
Width
480mm
Rim
38″
Front340/85R28F
Outside dia.
≈1,289mm
Width
340mm
Rim
28″

The tires on the tractor may not be original. A different size from the factory one can damage the transmission, especially on 4WD.

Take it to your tire shop: tractor-size.com

4WD ratio check and other tools →

Source: s4b621f162e87bd31.jimcontent.com

FAQ

What is the front tire size of the Challenger MT445B?

The Challenger MT445B comes from the factory with 340/85R28F front tires.

What is the rear tire size of the Challenger MT445B?

The Challenger MT445B comes from the factory with 480/70R38R rear tires.

Can I fit a different tire size on the Challenger MT445B?

Equivalent sizes with a very close outside diameter can be fitted (e.g. the radial equivalent). On 4WD, a changed front/rear ratio can damage the driveline, so check it with the 4WD ratio tool first.

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