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Fatalityx209
06-21-2017, 10:34 PM
If anyone don't want to run the trash aluminium rear sprockets anymore just like myself (I went thru a vortex sprocket in one month) then the jt sprocket part # jtr1490.xx will work available in the sizes we run.. Its slightly bigger around the hub but the holes are the right size and the distance between them is also spot on. Or go on jt sprockets website and look at the bikes it fits if you want to run other brands. That swingarm is the reason I did my research, no matter how much I adjusted the chain the aluminum sprocket kept deforming every day eventually allowing chain to slap around

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EBRRider
06-21-2017, 11:00 PM
Good find , kool thx https://www.amazon.com/JT-Sprockets-JTR1490-42-Steel-Sprocket/dp/B001AVS70I?th=1

Cooter
06-22-2017, 03:00 AM
Thanks for the heads up!

noone1569
06-22-2017, 09:50 AM
Interesting. I'm 4k miles on a vortex without issue, but would prefer a steel. Let me know how this holds up and if it mars your wheel hub at all.

zviadi
06-22-2017, 02:24 PM
Stock EBR front and rear sprockets sufficed me for 20000 km.
Anyway thanks for the information about JT.
Catalogue:
http://www.jtsprockets.com/catalogue/sprocket/JTR1490/

buell-fan
06-24-2017, 01:54 PM
What is the weight difference? It looks like putting a thin O-ring on that hub will locate the sprocket centered about perfect, and keep it there.

Fatalityx209
06-24-2017, 07:05 PM
What is the weight difference? It looks like putting a thin O-ring on that hub will locate the sprocket centered about perfect, and keep it there.
Ounces, I didn't bothered to weight it. I like your idea about an o ring. The inner circumference of the ebr sprockets are 117mm this sprocket comes in at 120mm but this was the closest I could find. I already have 1k miles on it and it works flawlessly it stayed centered after tightening down

TerryS1980
06-27-2017, 09:44 AM
Usually it's a chain issue if you're eating up aluminum sprockets so hopefully you upgraded the chain as well...

Cooter
06-27-2017, 02:04 PM
At 20k...k:) thats a lot of mileage for sprockets and chain with 185hp! They are a maintenance part as far as I'm concerned.

Fatalityx209
06-27-2017, 09:46 PM
Usually it's a chain issue if you're eating up aluminum sprockets so hopefully you upgraded the chain as well...
Yea I changed the chain too but I need a front sprocket its nearing the end of its life cycle. Anyone got one for sale?

zviadi
06-28-2017, 03:39 PM
At 20k...k:) thats a lot of mileage for sprockets and chain with 185hp! They are a maintenance part as far as I'm concerned.

He was surprised. I thought there would be enough for 8-9 thousand km...
I'll run about like this:


https://www.youtube.com/watch?v=-X6uJf9qMYY

The main thing is to observe the chain tension recommended by the manufacturer.

buell-fan
06-28-2017, 09:54 PM
It may be worth while to contact these guys about making our sprockets in steel. It looks like they produce a lot of sprockets, so they may be interested in doing a limited production run for us in the common 41 and 44 tooth sizes.

1190SX
06-28-2017, 09:56 PM
He was surprised. I thought there would be enough for 8-9 thousand km...
I'll run about like this:


https://www.youtube.com/watch?v=-X6uJf9qMYY

The main thing is to observe the chain tension recommended by the manufacturer.


zviada, do the police give you any trouble over there? Tell the truth :tongue:

zviadi
06-29-2017, 01:35 AM
It's Russia!:biggrin:
Here saying: "The strictness of the law is compensated by the non-mandatory nature of their execution"

We have road police and cameras, they can stop and can take away drivers license... For 12 years I have never been caught. I still run slowly, compared to some local riders...
If there were such laws as in Europe or in US, I would not buy any motorcycle in principle. It is better to walk than run on bike to half-gas.

Mike
06-30-2017, 12:13 AM
Yea, OEM "aluminum" sprocket works just fine.
Over 30,000 miles on mine with no visible damage.

If anyone don't want to run the trash aluminium rear sprockets anymore just like myself
Maybe your English and your sprocket wear go hand in hand..!?

Mike

zviadi
06-30-2017, 01:00 AM
I am confused only by one circumstance.
The outer diameter of EBR hub - 117 mm, the inner diameter of the hole rear sprocket JT - 120 mm. Is it possible that the sprocket will hang on 6 bolts, they have all strain (when opening the gas, for example). Will not it cut this bolts?

Fatalityx209
07-03-2017, 03:01 AM
Then keep using them mike 30k that's something special right there, I can't even get that on steel sprockets. Thanks for the spell check I needed a pretender to correct me so I can keep riding this beautiful beast

Fatalityx209
07-03-2017, 03:04 AM
I am confused only by one circumstance.
The outer diameter of EBR hub - 117 mm, the inner diameter of the hole rear sprocket JT - 120 mm. Is it possible that the sprocket will hang on 6 bolts, they have all strain (when opening the gas, for example). Will not it cut this bolts?

I have 2k on it right now and sprocket remains centered and no signs of damage or sheared bolts by this time I was half way through a vortex sprocket