Peculiar sprocket size on a 900 rrv - Honda Motorcycles - FireBlades.org
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post #1 of 10 Old 10-13-2013, 1:07 PM Thread Starter
 
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Peculiar sprocket size on a 900 rrv

Guys,

I pulled off the rear sprocket to have a look at it since its done around 15k kms and was never cared for by the previous owner. Needless to say the chain was making a racket and the 42t rear Sunstar sprocket now has about 5-6 teeth less!

The Entire mag, Hub/flange, chain/sprocket kit is after market and im kinda in a soup since i dont know where i would get spares if something were to happen.

Did I mention in Live in india where blades like mine are very rare and spares even more so?

Could some kind soul please help me out here? I dont want to order incorrect parts since i live on the other side of the globe and shipping/customs cost a bomb!

Also, im looking for a chain/sprocket kit on a budget. The bike isnt used much and i dont ride it very hard- thus i dont want to spend on fancy stuff. Im just an average joe on a shoe string budget.

Some additional details of the current setup.
Rear sprocket- Sunstar RK-111 42t
Chain- DID 525 Gold (108links, I presume)
Front sprocket- Looks stock with 16 teeth iirc.
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P.S Does anyone recognize the brand of HUB/Flange? and the mags?

Cheers!!
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post #2 of 10 Old 10-13-2013, 1:39 PM
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Re: Peculiar sprocket size on a 900 rrv

Quote:
Originally Posted by Zahin View Post
Guys,

I pulled off the rear sprocket to have a look at it since its done around 15k kms and was never cared for by the previous owner. Needless to say the chain was making a racket and the 42t rear Sunstar sprocket now has about 5-6 teeth less!

The Entire mag, Hub/flange, chain/sprocket kit is after market and im kinda in a soup since i dont know where i would get spares if something were to happen.

Did I mention in Live in india where blades like mine are very rare and spares even more so?

Could some kind soul please help me out here? I dont want to order incorrect parts since i live on the other side of the globe and shipping/customs cost a bomb!

Also, im looking for a chain/sprocket kit on a budget. The bike isnt used much and i dont ride it very hard- thus i dont want to spend on fancy stuff. Im just an average joe on a shoe string budget.

Some additional details of the current setup.
Rear sprocket- Sunstar RK-111 42t
Chain- DID 525 Gold (108links, I presume)
Front sprocket- Looks stock with 16 teeth iirc.
Attachment 57568

Attachment 57569

Attachment 57570

P.S Does anyone recognize the brand of HUB/Flange? and the mags?

Cheers!!

The wheel has no writing on it to identify it?
Maybe Duomo or Marvic?
What is the centre bore of the sprocket?
Early Kawasaki have 104mm bolt circle diameter so maybe check your measurement.
If you get any sprocket that has the same bore size you can simply re-drill it using yours a pattern - this is how I make 520 sprockets for my '85 GSXR among other things.

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
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post #3 of 10 Old 10-13-2013, 1:46 PM Thread Starter
 
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Re: Peculiar sprocket size on a 900 rrv

Quote:
Originally Posted by bladeracer View Post
The wheel has no writing on it to identify it?
Maybe Duomo or Marvic?
What is the centre bore of the sprocket?
Early Kawasaki have 104mm bolt circle diameter so maybe check your measurement.
If you get any sprocket that has the same bore size you can simply re-drill it using yours a pattern - this is how I make 520 sprockets for my '85 GSXR among other things.
As always, Bladeracer to the rescue! Thanks for the quick response mate!

The wheel just has forget aluminum written on it. Its very light and and has taken some serious torture over the last decade.
The bore size is 79mm. Your iea of re-drilling the holes is fabulous. Any recommendations on a cheap yet reliable sprocket with a 79mm bore dia? Im unable to do much research on the same as most of the sites are blocked by my ISP for reasons best known to them!
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post #4 of 10 Old 10-13-2013, 1:58 PM
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Re: Peculiar sprocket size on a 900 rrv

Quote:
Originally Posted by Zahin View Post
As always, Bladeracer to the rescue! Thanks for the quick response mate!

The wheel just has forget aluminum written on it. Its very light and and has taken some serious torture over the last decade.
The bore size is 79mm. Your iea of re-drilling the holes is fabulous. Any recommendations on a cheap yet reliable sprocket with a 79mm bore dia? Im unable to do much research on the same as most of the sites are blocked by my ISP for reasons best known to them!

If it says it's aluminium then it's clearly not a "mag" ;-)
79mm doesn't ring any bells but 80mm is very common and would fit for sure.
I would try the Kwaka sprockets as you can probably just dress the holes with a round file and it'll pop on. Late ZX10R has the 104mm/80mm but with 10mm bolts, so it might just go straight on. Older models in the "Z" and "KZ" range run the same pattern.
No idea what would be cheap where you are but any of the name brands would be fine - Renthal, AFAM, Vortex, JT, etc.
I would go to 520 stuff rather than keep the 525.

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
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post #5 of 10 Old 10-15-2013, 1:08 PM Thread Starter
 
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Re: Peculiar sprocket size on a 900 rrv

Thanks, BR! Im gonna check if someone is willing to carry the parts down to India.
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post #6 of 10 Old 01-22-2014, 10:46 AM Thread Starter
 
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Re: Peculiar sprocket size on a 900 rrv

The spares have finally arrived. I got my manager to carry them down from Houston. Now i just hope they fit!
bladeracer, thanks again for all the technical help buddy! You are an asset to this community!
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post #7 of 10 Old 01-22-2014, 2:41 PM
 
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Re: Peculiar sprocket size on a 900 rrv

Interesting, you have a 525 chain and sprockets....
Good luck, looks like you're in good shape.
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post #8 of 10 Old 01-31-2014, 2:13 PM Thread Starter
 
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Re: Peculiar sprocket size on a 900 rrv

And the kit finally went on the bike today! Perfect fit. .

Lets start with the old chain/sprocket set.
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The New and old
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You can clearly see the damaged teeth here.
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Had to fabricate a tool to flare out the chain link rivets. Not sure if they have been flared out enough. Seems ok to me- Quite close in dia to the other rivets
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The end result
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What i still cant figure out is what brand hub that is. Do the rubber bushes look too damaged to you'll?
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Cheers!
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post #9 of 10 Old 09-26-2015, 4:55 PM Thread Starter
 
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Re: Peculiar sprocket size on a 900 rrv

Hi All,

Can someone please tell me what these bolts are called and where i could find them?
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They hold the rear sprocket to the flange. The thread has worn out and the hole in the sprocket seems to be a whole 1.3mm larger than the OD of the bolt. I have a feeling the sprocket is floating around a bit when I suddenly wring the throttle or roll off it. Either ways, I need to replace them preferably with one that fits the hole in the sprocket well. Please advice...

https://www.fireblades.org/forums/att...-900-rrv-7.jpg
Also, what is this type of hub called and where could I get the rubber bushes?
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post #10 of 10 Old 09-28-2015, 4:19 AM
 
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Re: Peculiar sprocket size on a 900 rrv

Quote:
Originally Posted by Zahin View Post
Hi All,

Can someone please tell me what these bolts are called and where i could find them?
Attachment 63225
Attachment 63226

They hold the rear sprocket to the flange. The thread has worn out and the hole in the sprocket seems to be a whole 1.3mm larger than the OD of the bolt. I have a feeling the sprocket is floating around a bit when I suddenly wring the throttle or roll off it. Either ways, I need to replace them preferably with one that fits the hole in the sprocket well. Please advice...

https://www.fireblades.org/forums/att...-900-rrv-7.jpg
Also, what is this type of hub called and where could I get the rubber bushes?
i really cant offer any help. have you considered going back to a normal hub? you can still buy new honda cush rubbers. i know your on shoe string though ... wouldnt be interesting to figure out where that hub came from.pretty unique design
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