DIY 520 Conversion

[Mincehead]

2006 to 2008 R6 drive sprockets fit, I know because I had a 15 tooth varient in 525 on my TRX for a while.
You`ll definately get those in a 520 as they`re so commonly raced.

[M.V.]

2006 to 2008 R6 drive sprockets fit, I know because I had a 15 tooth varient in 525 on my TRX for a while.
You`ll definately get those in a 520 as they`re so commonly raced.

I went back & did some more research, the JT sprocket for the TRX is listed for the R6 as well, some models only though, namely 06-12.

http://www.jtsprockets.com/catalogue/sprocket/JTF1586

So I think the one I've ordered should work, it's Driven sprocket in 520. Still waiting for it to turn up though...

errata corrige:
sorry is not a kawa sprocket but a Suzuki GSXR 1000 k7-k8 one
Afam code 28402-17
Pics will be posted asap

Thansk Italian Red, always good to have a few options.

[Italian Red]

here the sprockets (the Gixxer one is the right one )



the Afam sprocket on the shaft



the sprocket i've tried is a R6 1999 version. Mincehead is right, sorry for my bad tip.

[M.V.]

Fantastic, thanks very much Italian Red!

[Italian Red]

Fantastic, thanks very much Italian Red!

You are welcome

[M.V.]

The front sprocket turned up, very nice.

front-side.jpg

However, to get to this, there's a few caveats.

The old sprocket:

old-front.jpg

The new sprocket. It's a bad photo, but you can see a gap, the new sprocket offset is a little off.

front-gap.jpg

[M.V.]

How much of a gap? Well, my verniers are broken, so I can't tell you exactly, but it's about the thickness of the locking washer used on the front

front-with-washer.jpg

So, washer on the front, washer on the back & we're good to go. I'm not sure it will make that much of a difference, but I guess it can't hurt... Not sure if it's all the R6 sprockets that are like that or just this one.

front-fitted.jpg

Seems alright.

rear-fitted.jpg

Flipped the rear sprocket, the holes are slightly larger than the TRX sprocket, but not an issue.

[M.V.]

Apparently the rear is a 45T, not a 43

Which leaves me with this:

chain.jpg

Which is where I stopped for the night. Not sure if I have enough adjustment to make this work, but I'm usually supposed by how little it takes to take up the slack.

So: 520 conversion, check.

You need: everything in the original post, plus a spare locking washer to space the spocket

[fung]

I spy a drain tray with a paintbrush in the background
A good time to give that area a good scrub eh
cheers
fung

[M.V.]

I spy a drain tray with a paintbrush in the background
A good time to give that area a good scrub eh
cheers
fung

Get stuffed.

It's as clean as it's going to get, until I strip it down & repaint it next year. After that I'll take some pride in keeping it clean.

[M.V.]

Well, my chain is rooted! But three or so years out of that one, pretty happy with.

Have ordered a new chain, same again, only $85 this time, rear sprocket looks fine, but I think I'll order a new front just to be on the safe side.

[phil108]

Cheers for all this info guys, one of my next jobs!

[goose202]

Discovered this thread when looking for options on the more expensive 525 chains - good info, thanks.

Looks like front sprockets are easy enough, but it looks like the NX650 rears don't come smaller than 43 teeth? Was hoping to keep my 16/39 or perhaps 17/41 gearing. Anyone have any other rear sprocket hints?

[nr]

Looks like front sprockets are easy enough, but it looks like the NX650 rears don't come smaller than 43 teeth? Was hoping to keep my 16/39 or perhaps 17/41 gearing. Anyone have any other rear sprocket hints?

JT do an NX650 from 42-47T: http://www.jtsprockets.com/catalogue/sprocket/JTR245_3

Which admittedly doesn't help in your search for a 41 tooth, but it's closer.

[Trixed]

Hey MV,

My chains is close to dumping, am keen for the same conversion. To Clarify can u please confirm as below:

Front Sprocket and spacer:

Rear Sprocket:

Any spacers or bolts or things I may need to install.

How the conversion going now that you have used it a fair bit?

Apparently the rear is a 45T, not a 43

Which leaves me with this:

chain.jpg

Which is where I stopped for the night. Not sure if I have enough adjustment to make this work, but I'm usually supposed by how little it takes to take up the slack.

So: 520 conversion, check.

You need: everything in the original post, plus a spare locking washer to space the spocket