Difference Between 'Classic' and 'Touring' Swingarms...

[scootz]

Evenin all,

I'm trying to work out what swing arm to use for my reverse-trike project.

I want to run an obscenely large rear wheel, so the engine will be getting offset and the swing arm I use will be getting chopped up and widened.

Here's where it gets a bit confusing (for me... ).

From what I can see in the pics, the 'Touring' swing arm seems to travel straight from the input shaft to the diff and the 'Classic' one seems to bend outwards slightly (maybe it's just an optical illusion in the pics I am looking at).

So firstly, which swing arm would be the best to widen (or to put it another way... would widening the 'Classic' one mean that I wouldn't have to shift the engine over as much as I would if widening the 'Touring' one)?

And secondly, that apparent bend on the 'Classic' model prop-housing arm. Does anyone know if the bevel-boxes are the same between the two models, or does the bend (if it does indeed exist) indicate an offset planetary gear on the 'Classic' box?

Thanks in advance.

Scotty

 

[Battersea]

Both Swinging Arm and Bevel Box are different, that's as much as I can tell you.

 

[tdragger]

Just some basic info for you if you are not already aware.

The Classic shares the same swingarm and bevel box with the Standard, Classic, Classic Tourer, and Roadster. It is made to have a 240/50-16 stock tire on back. Some Captains have been able to fit a 245/50 with just a bit of clearance. Of course, many of us run car tires in this arrangement with no issues.

The Touring model has a different swingarm and bevel box and is sized for a 180 series tire. I don't know the exact size offhand.

You "best" option, if money and skills allow, is to convert to a chain/belt system if you are truly after the insanely wide tire out back.

Otherwise, imho, you should look to the Standard swingarms.

 

[warp9.9]

The only way would be to change from the shaft thru the final drive and have the fianal drive drive a axel with a sprocket on the other side going to the sprocket on th enew rear rim. this means you will have to stretch the bike conbsiderably which might be good for the strip but would suc in the curves. My advice is buy a classic and stick withthe 240. You can fit a 250 to a 18 inch rim if you know some one who will make your 16 inch rims into 18 inch. if you go 17 inch you can get the 245 Ducati runs on the Diavel. Otherwise your making for a hard job. I would start saving $ now and maybe in a couple years you will be able to afford to have it done.

 

[scootz]

Thanks fella's.

(I should add that it's for my Trike project, so it will involve heavy fabrication anyway).

(...and I should also add that I've changed my mind and decided to turn the engine anti-clockwise through 90 degrees and run a sprocket off the *supported* output stub).

 

[warp9.9]

Now thats a different idea. You can mount the radiator in the front for cooling as it is just using different hoses. I see the engine front will have to be on the right side of the trike for proper wheel rotation. Are you planning on having a reverse in it so you can back up? Have you looked at other Rocket trike kits to see how they did it? I have seen a reversing box that took chevy drive shaft yokes before but cannot remmeber where. If you could find one you could still have the engine forward get reverse and use a limited slip chevy differential so you could have possi traction if needed. Don't get me wrong I am just throwing this out there for brain storming. I would like to do a little kit car with the rocket motor just for fun.