Aluminum 450r 3 wheeler.

[Jason Hall]

Good thing the wife loves me!!! Made a little progress with all my parts In the front room of the house today. Well I machined everything In the garage & brought It Inside to assemble & measure where It's warm . I fitted the swingarm, and also got the rake and wheelbase set. I'll be using stock length Inverted dirt bike forks. It should work out to have 12" of ground clearance when the suspension Is hanging. The seat height will be set at about 29" (same as a stock trx250r). I'm still planning on building an aluminum tank that will be higher than the stock cfr450 tank. That will give me a chance to build a sweet seat up the back of the tank. Now to just get a nice long travel rear shock setup for a trx 450. It turns out I won't have to cut the frame other than removing part of the Origional rear shock mount.

[sandpuppi101]

I see your making some headway on the project,and making it into the house is a deffinate plus..A few ??'s,I assume that the frame setting on the crate is a pretty good guesstimate of where the frame will actually build.Now by setting that,did it give you the rake your wanting ,or did you machine the tree? And I see more clearly what we talked about with the rear shock,How much do you have to lower the shock mount,to get that all 100% established?? Looking good ..

[Jason Hall]

Roger, It has alot deg of rake now, that should be a little less once I'm on It. I figure If the bike drops 3" with me sitting on It I'll have a good 9" ground clearance. The rear shock mount will probly be about 4" lower than the bike mount was. I'm lookin at running an airbox under the seat, so dropping the rear shock will leave room for the carb boot to go overtop of the shock. Thats why I wanted to use the TRX swingarm & shock so bad.

[jeffatc250r]

I know the trx 450 shock on my 250r is very stiff, i assume its geometry related and has to do with where it mounts. Maybee that will be the same on this? Perhaps the bike shock is a better candidate? Prob has more travel than the trx also?

[Jason Hall]

I will be using an atc/trx 250r shock to build the bike. As soon as money will allow, I will purchas an aftermarket 250r long travel shock. I want It setup soft to match the front forks. I know what your talking about, my 450/350x was stupid stiff with a stock 450 shock.

[bushwacker51]

Jason,
I was reading the posts about your project and I read the statement you wrote that one change makes other changes. That is so true when you are fabricating something. I built a pro street 55 chevy truck. I was fabricating the radiator suport and one little change in the support design changed everything and caused nightmares lol. Good luck in your build Glenn O.

[Jason Hall]

A little more progress.

[Chevy200s]

wow that looks awesome man, I'm always very impressed with your work, keep it up

[200x newby]

Any updates?

[Jason Hall]

Still gathering part guys. I did modify the tripples a little to shorten the wheel base. I just bought a 18.5" Axis rear shock. I'll be cutting the origional top shock mount off & adding a new one where It's needed for the new shock setup. I modded the tripples so I can use a 06-08 TRX swinger. I sat a stock trx450r seat up to the frame so you can get an Idea what that will be like. Next I'll be in the market for a trx450 rear subframe. I will be shortening up the front of the trx seat pan to leave room for the gas tank. A little at a time and I'll get It done.

[200x newby]

looking good! thats gonna be one bad *Edited**Edited**Edited**Edited**Edited* ride!

[The Goat]

any more pics or work?

[Jason Hall]

The Goat, I'm waiting for my rear shock to get back from Custom Axis. I decided to use a CR-500 shock. It will easily have 12" of rear wheel travel using 06-08 TRX450 linkage. The shock needed to be rebuilt, so I figured they might as well revalve It for the TRX450 linkage. Once I have the shock back, I can build the top mount. With the shock mounted It will be rolling, and the rest of the build should go a bit faster. I did pick up a good TRX450 rear sub frame, but can't make that fit until the shock mounting Is done.

[maggiesboy]

this is a sweet project

[Tri-Z 250]

If you need to I believe Dr. D makes a lowering kit to drop the radiators just a bit.