27 inch gorilla silverbacks for grizzly 550

[little kidd]

Hello, I just bought a new grizzly 550. Im thinking about putting 27inch gorilla silverbacks on it. Just wandering wat people think about this. Im also wandering how much power i will loose and if i will need to get a lift to make them fit. Thanks

[KVF 700]

well i think that might be a little to much tire for the quad.... i personally think the key to success is tire speed, and unless you have a 600 cc+ quad i wouldnt suggest it. that said iVe never road a 550 grizly before, only the kodiak 450 which i dont think could handle them. just my 2 cents

[little kidd]

Okay, thanks for the info so what do you think would be a good tire for that bike. I ride on the trails a little bit but go mudding more and like to mud more.

[medler]

Originally Posted by little kidd

Okay, thanks for the info so what do you think would be a good tire for that bike. I ride on the trails a little bit but go mudding more and like to mud more.

26 '' .Whatever brand you like

[AreWeThereYet]

Go with the tried and true, 27" Maxxis Zilla's.

[GWNBrute]

I don't think those 27 backs are to much for the quad you will just have to clutch it and it will turn them no problem!!

Silverbacks are nasty tires and they will pull you through anything as long as you have good throttle control.

[little kidd]

Thanks, I think I'll try that out. Thank you everybody for the information I really appreciate it. Also if anybody has anymore thoughts or ideas i like to hear them.

[KVF 700]

Originally Posted by GWNBrute

I don't think those 27 backs are to much for the quad you will just have to clutch it and it will turn them no problem!!

Silverbacks are nasty tires and they will pull you through anything as long as you have good throttle control.

by good throttle control, do you you mean right to the bar all the way through?? lol

for some reason im quite skeptical.... how is the power on the 550 griz compared to the kodiak 450?

[KVF 700]

Originally Posted by AreWeThereYet

Go with the tried and true, 27" Maxxis Zilla's.

im thinking these would be a better choice. i run 26 inch zillas on my 700 kawi and can go just as far as any other 26 inch tire..... but ive also seen 28 inch swamp lites on a 450 honda and with the ultra low first gear it will turn them in ANYTHING lol.

[AreWeThereYet]

Its better to be able to spin a moderate aggressive tire that to bog down with a highly aggressive one. Cleaning and tire rpm is the key, I have 25" kenda bear claws on my 2wd 225cc yammy moto 4 and can go most anywhere someone with a 4wd can, sometimes farther, especially in skeg if I don't break through.

[GWNBrute]

Originally Posted by AreWeThereYet

Its better to be able to spin a moderate aggressive tire that to bog down with a highly aggressive one. Cleaning and tire rpm is the key, I have 25" kenda bear claws on my 2wd 225cc yammy moto 4 and can go most anywhere someone with a 4wd can, sometimes farther, especially in skeg if I don't break through.

I have a Raptor and find the same thing I believe the only difference is that it is more floatation then tire spin 2wd are light compared to a 4wd. If you get a
4wd with tires like silverbacks and the right clutching and you let the tires do the work they will eat there way through anything.

[Gearhead559]

27's should fit just fine...you may want to go some clutch mods tho..but if you use low when mudding, you might just be ok..id say put them on, and go ride it ...if you feel you lost some low end, then clutch mods will bring it back.do you have any other mods like a fuel controller , exhaust and so on?

and machined sleeve will bring back your top end from clutch weight and a shim mod..those seem to bring the snap back down low..even on a 550..

this is very common stuff on the grizzly forum i am on.. you might want to check it out heres a ling for you tho Yamaha Grizzly ATV Forum


go over there and sign up and intro your self...there is tons of info there on this type of stuff..im sure, but i hope it helps a bunch with what you are trying to do