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What is the Best Tire for YOUR Subcompact Tractor?  -  R4 vs. R14 Tractor Tire Traction Test

What is the Best Tire for YOUR Subcompact Tractor? - R4 vs. R14 Tractor Tire Traction Test

Reviews & comparisons25 hp & underKubota BX23S

Overview

A hands-on owner comparison between stock R4 and aftermarket R14 tires on a Kubota BX23S, built around an actual pull-force test using a scale (R4s peaked at 1,580 lbs, R14s at 2,100+ lbs). Beyond raw numbers, the owner covers ride quality, sidewall durability, mud-clearing, and grass damage on wet slopes. Worth watching for BX23S owners genuinely weighing a tire swap, though note the R4s tested were three years old.

A hobby homesteader owner-operator sharing multi-week real-use impressions from their own property, with no apparent commercial stake except a mention of the local dealer who supplied the R14s.

Spec overview

Kubota BX23S

PTO horsepower
17.7 hp
Loader lift capacity
6258 N (1407 lbs) [LA340] / 5719 N (1286 lbs) [LA340S]
3-point lift capacity
1,213 lbs.
Hydraulic flow
6.2 gpm (23.5 l/min.)
See the full Kubota BX23S page →
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