600 Grizzly atc??

[atc300r]

Honda vtx 1800 frontend is also a posibility.

[ironchop]

Not necessarily.

It depends on what you use it for and how you setup the suspension..

with some swaybar action...lol

[DohcBikes]

The grizzly 600 is a straight rear axle anyways. You'd have to get a 660 for irs

Excellent point, I don't know anything about Yamaha quad rear ends so I wouldn't know.

Someone here was doing an IRS trike a while back but I don't know how far they got.

If we are now talking about a straight axle 600 utility trike then once again I'm allllll for it!!!

Strength is not the only thing to be concerned with. You'll want it to handle properly as well. Rake and trail are key to a functional trike. I would suggest studying the rake and trail of a big red before you start looking at front ends and triples.

Your bike weighs about 650lbs. Gusset and weld accordingly.

[lokisbuddy]

Harley Fat Boy front end comes to my mind for such a build....

I was thinking of that or the front end of a boss hoss. but the trike would not be used for anything other than dredging through swamps and rivers and toting my fishing gear across swamps. And yeah a 300 is not gonna cut it im looking for at least 600 I might even use a bigger engine but it will be after my 200rx build (blaster engine in x chassis) but I want to get all the ducks in a row so I can start easing the old lady into the costs

[lokisbuddy]

and yeah my 07 grizz is irs I thought 00 was too but its mono shock. I will use a rock crawler style suspension on the back with a straight axle also im thinking of a wider front end with a winch mount between the forks.

[RIDE-RED 250r]

Well, I'm not sure it would call for a front end as heavy as the Boss Hoss has.. Whats a Fat Boy tip the scales at... roughy 800lbs I'm thinking??? That's still significantly heavier than a Grizz. And I bet a Fat Boy front end would be easier and cheaper to source.

The VTX front end suggested by ATC300r I'm sure would be strong enough as well. Just about any big fat cruiser bike outweighs a Grizz.

[DohcBikes]

Actually a Fatboy and a grizzly are very similar in weight. Its ok though most people think Harleys are heavier than they really are. 1998 Fatboy dry weight is around 630lbs. Curb weight is about 660.

I don't think you want to use a motorcycle frontend, especially a raked out street bike. The triples will not be wide enough to accommodate a tire that is wide enough to handle the push in the turns. A Fatboy front tire is 150mm wide if I'm not mistaken.

Its best to go completely one off in this case, other than maybe the forks, in my humble opinion.

[King Trikester]

Don't forget the fact that you would shed a few pounds when you cut the front end off, one less tire, the front wheel drive system etc.

I love the idea of a modern utility trike, awesome I hope you go through with it

[El Camexican]

You can use the front end off one of these. You can buy them on chibay. Shipping might be a little high though.

[lokisbuddy]

Was looking at my kz1000 front end today i think i will use the forks off that just need some tripples made.

[DohcBikes]

Not recommended. The k1000 forks were BARELY sufficient for a 550lb bike on the street. Notoriously weak forks. They won't hold up off road, in my humble opinion.

[DohcBikes]

And stop looking at your KZ like that,,,,,,what did it ever do to you become parts for a Yamaha????

I'd use Harley Dyna forks, in case anyone cares.

[atc300r]

From what I read some of the guys that put inverted forks on their 250rs used vtx 1800 triples . My thought is they are up to the task .And you can use 250r front hub,brakes and such. Just a thought. Search inverted forks vtx. Kaseys thread is where I read it from.

[ironchop]

And stop looking at your KZ like that,,,,,,what did it ever do to you become parts for a Yamaha????.

[lokisbuddy]

And stop looking at your KZ like that,,,,,,what did it ever do to you become parts for a Yamaha????

I'd use Harley Dyna forks, in case anyone cares.

lol I should have specidfied. when I bought my kz1000 it came with a parts bike I have the forks and the broken triples left over.