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Discussion Starter · #1 ·
I just picked up a 1990 fourtrax 300 4x4 that except for dried out fenders and wasted front wheel bearings is in great shape.
I have been riding wheelers since I was 3 (ATC70 woot!) and fixing them since I started breaking them which must have been when I was about 3 1/2 .. :smile:
I have some Honda specific questions though, sorry if these have already been asked before;

I have guessed that mine is a "TRX300 FW A" FW meaning four wheel drive, is this correct? what is the "A" for?

What other years are generally common with the 1990 for parts?

Right now I have 24x9-11 rear tires and 23x8-11 front tires, is there a larger combination that has been run successfully?
What about upgrading to 12" wheels? (since every tire I find on c-list is a 12") What other brand or model is my wheel bolt pattern common with?

Thanks in advance,
-Rodney
 

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Welcome to the forums! Not sure about the A but the FW mean four wheel drive. The size you have now I believe is the correct size for that year and you can go up in size just keep the same ratio front to back. (back being an inch taller) and you'll be fine. I think there are a few guys on here running 25-26 inch tires with no trouble but I'll let them fill you in on that as I only have a 2wd one. Most parts should be identical from 88-91 in 92 there were some minor engine changes (cam, exhaust, jetting) and at some point they changed the front suspension a little I believe.
 

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i could be wrong on this fourtrax..but..if he's got 4x4..it won't matter if the front and rear tires are the same in szie ?..if it were a 2x4..then yes..he needs to keep the back tires larger than the front ones..but..like i said..i could be wrong on this..lol.
 

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Because of the transfer case.. the ratio should be kept front smaller than rear by one inch. Otherwise because its full time 4wd the fronts will end up turning faster than the rear and can eventually cause problems. Like driving a 4x4 truck on dry pavement locked in.. Something has to give.. In a truck it will trash a transfer case in no time. But the ATV may take alot longer depending where they drive.
 

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i could be wrong on this fourtrax..but..if he's got 4x4..it won't matter if the front and rear tires are the same in szie ?..if it were a 2x4..then yes..he needs to keep the back tires larger than the front ones..but..like i said..i could be wrong on this..lol.
Yeah, on the 4X4 models, the back tires are one inch taller. The 300 4X4 has a transfer case to make up for the difference in the tires, so he will need to keep the rear tires one inch taller.
 

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Welcome to the forums! Not sure about the A but the FW mean four wheel drive. The size you have now I believe is the correct size for that year and you can go up in size just keep the same ratio front to back. (back being an inch taller) and you'll be fine. I think there are a few guys on here running 25-26 inch tires with no trouble but I'll let them fill you in on that as I only have a 2wd one. Most parts should be identical from 88-91 in 92 there were some minor engine changes (cam, exhaust, jetting) and at some point they changed the front suspension a little I believe.
Yeah, I agree with Fourtrax. About all of the parts will be the same except for the ones he mentioned.
 

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Discussion Starter · #7 ·
Thanks for the replys,
I did some checking online and ITP part #1228305403B which is supposed to fit the 300FW also fits a seemingly endless list of other brands and models ITP C-Series Type 7 Bead Lock Polished Wheel - DennisKirk.com so at least the bolt pattern is common. Although the problem I'm seeing now is the new wheelers run same diameter tires front and rear which doesn't work for me so all the used/take-off tires I'm finding aren't going to work even if I do swap for 12" rims. :icon_ nono2: I'll have to see what I can find new, shipping is killer up here though.

-Rodney
 

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Thanks for the replys,
I did some checking online and ITP part #1228305403B which is supposed to fit the 300FW also fits a seemingly endless list of other brands and models ITP C-Series Type 7 Bead Lock Polished Wheel - DennisKirk.com so at least the bolt pattern is common. Although the problem I'm seeing now is the new wheelers run same diameter tires front and rear which doesn't work for me so all the used/take-off tires I'm finding aren't going to work even if I do swap for 12" rims. :icon_ nono2: I'll have to see what I can find new, shipping is killer up here though.

-Rodney
Some people will actually run the same size tire, front and back, and just air the back tires up fuller to make them taller and make up for the 1 inch difference. I would never do that, though, because I just don't like the idea of that. I guess it would be OK if you just rode in deep mud all the time, but I ride on the road sometimes, in between trails and I was always afraid it would tear up my transfer case or one of my diffs.
 

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Discussion Starter · #10 ·
Some people will actually run the same size tire, front and back, and just air the back tires up fuller to make them taller and make up for the 1 inch difference. I would never do that, though, because I just don't like the idea of that. I guess it would be OK if you just rode in deep mud all the time, but I ride on the road sometimes, in between trails and I was always afraid it would tear up my transfer case or one of my diffs.
Nooo, won't be doing that, this thing will be used around the yard with the ocassional trail ride.

-Rodney
 

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Discussion Starter · #11 ·
Well, that's annoying, tried to run by my local Honda shop on my lunch break but I forgot they're closed on Monday... darn... I knew that.. no parts for me today.. :blink:


-Rodney
 

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look on the bright side......you get to hold onto your money for another day !..lol.
 

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fourtrax is correct mine is 4x4 and the front has to stay smaller than the back
i guess honda changed alot sinse after they made the trx350d foreman..because my tires are the same size..front and back..i'm guessing they done something different with the diff gears.
 

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fourtrax is correct mine is 4x4 and the front has to stay smaller than the back
i guess honda changed alot sinse after they made the trx350d foreman..because my tires are the same size..front and back..i'm guessing they done something different with the diff gears.
Your 4-wheeler doesn't have a transfer case, so your tires are the same size. The Fourtrax 300 has a transfer case and runs one inch taller tires in the rear. I don't know why they did it that way, though.
 

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fourtrax is correct mine is 4x4 and the front has to stay smaller than the back
i guess honda changed alot sinse after they made the trx350d foreman..because my tires are the same size..front and back..i'm guessing they done something different with the diff gears.
Your 4-wheeler doesn't have a transfer case, so your tires are the same size. The Fourtrax 300 has a transfer case and runs one inch taller tires in the rear. I don't know why they did it that way, though.
now..that makes alot of sinse..no transfer case on mine..yep..i agree with ya.
 

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Discussion Starter · #16 ·
fourtrax is correct mine is 4x4 and the front has to stay smaller than the back
i guess honda changed alot sinse after they made the trx350d foreman..because my tires are the same size..front and back..i'm guessing they done something different with the diff gears.
Your 4-wheeler doesn't have a transfer case, so your tires are the same size. The Fourtrax 300 has a transfer case and runs one inch taller tires in the rear. I don't know why they did it that way, though.
I think it's one of those "everyone is doing it" things, Suzuki took it a bit far with the old king quads.. I think they have like 20" tires on the front and 24"s on the back..
:funnysuzuki:

-Rodney
 

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i guess honda changed alot sinse after they made the trx350d foreman..because my tires are the same size..front and back..i'm guessing they done something different with the diff gears.
Your 4-wheeler doesn't have a transfer case, so your tires are the same size. The Fourtrax 300 has a transfer case and runs one inch taller tires in the rear. I don't know why they did it that way, though.
I think it's one of those "everyone is doing it" things, Suzuki took it a bit far with the old king quads.. I think they have like 20" tires on the front and 24"s on the back..
:funnysuzuki:

-Rodney
thats nothing..ppl now days..put 25's..and 26's on thier rides..but..it's gonna cost them a lift kit..and maybe a few worn cv joints and axles down the road..lol.
 
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