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BMEPdoc

'89 XR600 rear sprocket?

17 posts in this topic

Hi folks - I was in the process of ordering an Ironman sprocket for my BRP. .here's my e-mail and their response :

Hi...I'm looking for a high quality rear 48-52 tooth sprocket for my 1989 Honda XR 600R.. The aluminum ones I've used in the past have an unusually short service life. I'd prefer a true cro-mo unit to an alloy. Do you have anything for this application?

Regards

Thanks for your email. Ironman sprockets would have a spectacular sevice life on your bike, but I only have a listing for the 1989 650R, not the 600R. I don't have a cross reference, but if it is the same part then that would be a solution for you. Your local Honda dealer might be able to help you determine if the rear sprockets are the same on those two bikes. Ironman sprockets are available online here:

Ironman Sprockets

Let me know if I can do anything else for you.

is that about?...

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hmmmmmmm...Oh well, I guess I'm stuck with another overpriced, underperforming aluminum cog... :bonk:

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hmmmmmmm...Oh well, I guess I'm stuck with another overpriced, underperforming aluminum cog... :bonk:

I'm not so sure, the xr600's and L's had a recessed bolting pattern, the 650r's had a tapered hole bolting pattern. I just don't know the cross reference for a 89 and which one it is?

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Now, that's interesting. If I recall correctly, I DO believe one of the bikes (we have several) does indeed have a recessed, as opposed to tapered sprocket indexing fitment. I'll have to take a look. If that's the case, then I'd assume a simple bolt swap would do the trick..nawwww...can't be that easy. I'll check. Thanks a zillion for the help!

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Rocky Mountain sells rear steel sprockets for 18.99 and their chain and sprocket kits for 65-70$ I've had good luck with them.

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ive got a few heavy duty steel ones for my bike if you might be interested in buying one i think i could spare one

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Sidewinder has them in tool steel and titanium, but be prepared to pay though, but is quality stuff!

Or you can try ebay seller Dirtparts, they will sell a combo RK x ring chain and JT steel sprockets for $90

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Not sure where you went for that response. Dirttricks.com makes Ironman sprockets. I know them well, and after talking to them about this thread, the above response did not come from Dirt Tricks. They have discontinued the 600 sprockets, which are the same as the 650L sprockets. They use a counter bored 10mm sprocket bolt, and not the regular 8mm counter sunk bolt. They said that by June they will start making them again due to people asking for them. ....FYI

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not sure if this will work on the 600, but an idea.

On my 1994 xr250 the stock sprocket was shot. I had my new take off sprocket from my 2003 crf450. The hole patterns were the same, but the bolt holes were smaller on the crf sprocket and the holes required teh taperd head machine screw (dont know proper name). I ended up drilling the holes to the same size as the xr250 holes and buying some tapered head bolts at the local bolt bin. The sprocket then fit up nicely. I even used the stock crf450 chain which was too weak for the 450, but plenty strong enough for the xr250.

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I had this discussion with another person on this, but they are running CR sprockets on their 600. Its not jsut tapered vs flat according tot he manual...The factory bolt spec of the XR sprocket is M10 width, but the CR is only M8, but he swears they both are the same diameter. If you go to talon.co.uk you'll see the collection of sprocket bolts.

Even if you could run sprockets off the newer CR by swapping bolts, problem for you is that Im pretty sure the 89 drum rear end has a different hole pattern than the 91+ disk rear end bikes.

I swapped my 89 to disk and I would recommend it! :applause:

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"I had this discussion with another person on this, but they are running CR sprockets on their 600."

FWIW, I beleive CR & CRF sprockets are interchangeable.

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Rocky Mountain sells rear steel sprockets for 18.99 and their chain and sprocket kits for 65-70$ I've had good luck with them.

Ditto.

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"I had this discussion with another person on this, but they are running CR sprockets on their 600."

FWIW, I beleive CR & CRF sprockets are interchangeable.

I agree, I was talking about someone running CRF/CR sprockets on an XR hub.

I received a sprocket from thumpertalk a year or so ago and went to put it on and it looks like it is a Xr400/Cr/CRF M8 bolt rather than the M10 that i need

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