17"rear wheel

[ribbert]

I have a 17" X 5.5" yamaha rear wheel with underslung brake. I bought the conversion complete with swing arm from a wrecked FJ and do not know what the original donor bike was. I now need sprockets. Could some please tell me the model this wheel is likely to be from.
Thanks
Noel

[Dazza57]

Hi Noel, I recently bought new chain and sprockets from these guys. Harvy put me on to them, as I couldn't find anyone in Perth that could help with custom sprockets. I went with 18/38 on Harvy's advice. I have just fitted a 1990 GSXR1100 17/5.5 wheel and all lines up nice.

Chain Gang Sprockets in Brisbane  1800 806 857. They will do you chains and sprockets and will supply custom ratios. They are not cheap, but they are excellent quality.

Cheers, Dazza

[andyb]

It's from a motorcycle. 


Got any other identifying information by chance?  The wheel probably has some info cast into it, the caliper may have info on it, you could measure the brake rotor, maybe even take a picture...

You can also pull the sprocket and take measurements from it to find the bolt spacing, which a good sprocket company should be able to tell you what will fit, and thus what it's from.

[ribbert]

It's from a motorcycle. 

Thankyou, that answers my question.

[Pat Conlon]

Could some please tell me the model this wheel is likely to be from....

It's from a motorcycle. 

Thankyou, that answers my question.

Well...Is Andy wrong? What do you expect the answer to be?
Oh, it's from a GSXR, no, it's from a YZF600, no, no I think he has the T-Ace YZF1000 rear rim... etc, etc...
Yea, lets get a big discussion going on this...One of us will be right.

Why don't you help us help you? Take a picture of the sprocket side of the dismounted rear rim so we can see the bolt pattern and measure for us the distances between the sprocket studs and measure the diameter of the sprocket hub (on the rim)

You can guess that different rims had different sprocket bolt patterns, correct?  What kind of answer do you want? 

[ribbert]

Well...Is Andy wrong? What do you expect the answer to be?
Oh, it's from a GSXR, no, it's from a YZF600, no, no I think he has the T-Ace YZF1000 rear rim... etc, etc...
Yea, lets get a big discussion going on this...One of us will be right.

Pat, I believed, and was obviously wrong, that there was ONE particular year and model with brakes as described that was favoured for this conversion.
Noel

[Pat Conlon]

Nope, many 17x5.5 rims have the option for under slung calipers, like GSXR, T-Ace, etc.

[andyb]

Gets better.  What if the person doing the conversion didn't use a commonly available one?  Maybe it's from an MV F4 750, maybe it's an ZZR wheel that was widened or narrowed, etc etc etc.  

More info = more accurate help.  Otherwise, I'm able to reasonably guess that it's not from a car, unlikely to be from a plane as those don't use driven wheels, likely not from a boat, so I'm guessing it's going to use a motorcycle sprocket.    Frequently there's information cast into the wheel on the spokes, that'd be helpful possibly, as would a good picture.  Is the brake caliper marked with a maker's name on it?  How big is the rear rotor?  Eventually you'll need pads, so it'll be helpful if you know what all your bits are from so that you can get stuff that fits.  But at worst, measuring the holes in the current sprocket for size and spacing would get you a shortlist of machines that it'd fit.  Is it an aftermarket sprocket?  Often enough they'll have a part number stamped into them, maybe a maker's logo, that sort of thing.  When you really start wanting to fight it, checking the bearings inside the wheel could also help, if you can still read the numbers on them, but that'll be hell of crossreferencing.

Start with the easy stuff.  17x5.5, okay, but are you certain that it's a Yamaha wheel, even?  Take a picture, and post it.  Measure the brake rotor's diameter, and post it.  Any information from the wheel itself, and post it.  Any information from the brake caliper, and post it.  You may (with a truckload of searching) be able to identify the brake caliper by the shape of the pad and measurements (think it's EBC that lists shape and measurements in their detail view of each part number on their site).  

[Rich Pleines]

Go to the following link on eBay.

http://stores.ebay.com/Lytle-Racing-Group/_i.html?_nkw=yamaha+530+rear+sprocket&_armrs=1&_from=&_ipg=

This seller lists the dimensions of all the sprockets they sell.  I searched and came up with 126 hits on their eBay listing search tool " Yamaha 530 rear sprocket". You can see an enlarged dimesion view by clicking on any unit. You may want to start by selecting the ones you think it is. Measure your sprocket [or wheel sprocket hole spacing] find the one that matches, pick the number of teeth you need and life is good.

[Pat Conlon]

Very cool Rich! Good find, thanks!

[ribbert]

Gets better.  What if the person doing the conversion didn't use a commonly available one?  Maybe it's from an MV F4 750, maybe it's an ZZR wheel that was widened or narrowed, etc etc etc.  

More info = more accurate help.  Otherwise, I'm able to reasonably guess that it's not from a car, unlikely to be from a plane as those don't use driven wheels, likely not from a boat, so I'm guessing it's going to use a motorcycle sprocket.    

I did mention it was a Yamaha wheel and simply asked if there was a commonly used model that it was likely to be based on that information.  The answer need only have been "no, there were several, more information required"  I withdraw my question.

[ribbert]

Rich, just found your post with link to the sprocket info, very handy site.
Thanks
Noel