Z421 Wheel Change

WDF

Member

Equipment
Kubota L2501 HST/FEL
Jan 4, 2021
87
77
18
Central Florida
I bought a new z421/54" deck this spring for a good price. One of the reasons I chose the z over competing makes was the larger wheel and tire size, it has 24x9.5x14 rear wheels. I noticed when cutting that my grass is showing signs of compaction as we have sand soil here. The 60" deck mowers have a rear tire size of 24x12x14, and the dealer says the wider tires will reduce compaction.
I can change the rears for $700, will the extra 2.5" width make any difference?

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Steve67

Active member

Equipment
B2601-fel, 60"mmm, 5' rear blade, balast box
Jan 20, 2017
322
101
43
St. Louis, mo.
That price seems high. I know I’m not comparing apples to oranges but I just paid $1100 for a set of 4 Michelin defenders installed on my truck. You should talk to the salesperson and not the parts guy
 

KevincMD

New member

Equipment
B2601, L4740, Z421-60 and RTV500
May 28, 2021
1
0
1
Maryland
I believe you will really like the wider tires/wheels. I have a Z421-54 and I ordered the wider units pre-COVID, when things weren't so crazy priced. They are awesome on wet ground. I also put the wider tires/spindles on the front. I sold my other rear set and made back a lot of my investment. They make a difference and leave no trenches.
 

WDF

Member

Equipment
Kubota L2501 HST/FEL
Jan 4, 2021
87
77
18
Central Florida
Thanks I would think so as well. For now I lowered the PSI down to 6 (from 12).
I'll probably go ahead and order wider wheels if I can find a set at a good price.
 

Code

Active member

Equipment
l3301, fel, lp boxblade, 12" lp auger, lp bush hog, z421 zt, lawnvac leaf vac
Dec 19, 2020
126
90
28
Central, Va
Bringing up an old thread but i just got 2 flats in sidewalls of my z421 (stupid past owners have barbed wire all over).
Where are you guys looking and getting tires? My google fu is not helping much besides kubota dealers
 

kevinc

New member
Dec 12, 2010
3
0
1
Huntingtown MD
That’s a good question! I like the wide tires, but they’re not popular where I’m shopping. I guess I was planning on ordering them through my dealer or Messicks wheeler the time came. I haven’t sent them on other websites.
 

WDF

Member

Equipment
Kubota L2501 HST/FEL
Jan 4, 2021
87
77
18
Central Florida
I never bought them. Not spending $700 for better mower rims.
Although if you want to work out a deal maybe ill relent
 

Mowbizz

Well-known member

Equipment
Bx25d
Aug 19, 2021
438
252
63
New Hampshire
I have the Z422 with the narrower tires and suspension seat. After 20 or so hours of mowing this summer the narrower tire (54” deck) are working out fine. I have some hills and my worry was lack of traction but the tires have done everything I have asked them to do. Love my Z422-54! Sandy soil here as well but with good drainage. For $700 to upgrade, I’m glad I stayed with the originals.