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Tümosan

Tümosan 81.100 tire size

Factory tire pairs for the Tümosan 81.100 (95 HP, 4WD):

  • 95 HP
  • 4WD
Rear420/85R34Front380/70R24
4WD
Rear
16.9-34
Outside dia.
1,585mm
Width
429mm
Rim
34″
Original radial: 420/85R34
420/85R34
Outside dia.
1,578mm
Width
418mm
Rim
34″
Front
380/70R24
Outside dia.
1,199mm
Width
380mm
Rim
24″
tube-type equivalent: 13.6/12-24
4WD
Rear
380/85R38
Outside dia.
1,611mm
Width
380mm
Rim
38″
No bias-ply equivalent
Front
13.6-24
Outside dia.
1,200mm
Width
345mm
Rim
24″
Original radial: 340/85R24
340/85R24
Outside dia.
1,188mm
Width
343mm
Rim
24″

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

What do the Tümosan 81.100 tyre sizes mean?

420/85R34 is a radial tyre: section width 420 mm, sidewall height 85% of the width, rim diameter 34 inches. The “R” marks radial construction. Outside diameter is about 1,578 mm.

380/70R24 is a radial tyre: section width 380 mm, sidewall height 70% of the width, rim diameter 24 inches. The “R” marks radial construction. Outside diameter is about 1,199 mm.

380/85R38 is a radial tyre: section width 380 mm, sidewall height 85% of the width, rim diameter 38 inches. The “R” marks radial construction. Outside diameter is about 1,611 mm.

340/85R24 is a radial tyre: section width 340 mm, sidewall height 85% of the width, rim diameter 24 inches. The “R” marks radial construction. Outside diameter is about 1,188 mm.

In this pair the rear tyre's outside diameter is about 1.32 times the front. On 4WD tractors the front-to-rear tyre ratio must match the driveline ratio, so keep it when changing tyres.

8 other Tümosan models use the same rear size (420/85R34).

Read more: How to read a tyre size · 4WD front–rear tyre ratio · Tractor tyre pressure

Technical data

Engine
4 silindir 3,9 L

Values come from manufacturer or dealer sources; check the label of the existing part before buying. · Source: tumosan.com.tr

Also written as: Tümosan 81100 · Tümosan 81 100 · Tümosan 81-100

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

4WD ratio check and other tools →

Source: tumosan.com.tr

FAQ

What is the front tire size of the Tümosan 81.100?

The Tümosan 81.100 comes from the factory with 380/70R24 or 340/85R24 front tires.

What is the rear tire size of the Tümosan 81.100?

The Tümosan 81.100 comes from the factory with 420/85R34 or 380/85R38 rear tires.

Can I fit a different tire size on the Tümosan 81.100?

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.

Other Tümosan models

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