Sprockets! - Yamaha R3 Forum
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post #1 of 36 Old 04-24-2015, 08:09 PM Thread Starter
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Sprockets!

Talk sprockets!

Stock:
What are the stock chain link count, type, and front and rear sprocket tooth count?

Modified:
What's both the largest and smallest sprockets that fit, both front and rear, on the bike without major modification? (Meaning swap a sprocket, and at most exchange the chain with more or less links)?

I know rear sprockets we can get from rebelgears.
they make aluminum only sprockets, which usually are good for 10-15k miles max.
front sprockets are steel. I'm dependent on amazon, jt sprockets, sunstar, pbi sprockets, etc....

Last edited by EcoRider; 04-24-2015 at 08:18 PM.
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post #2 of 36 Old 04-24-2015, 08:17 PM
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Looks like stock final drive is 14 on the countershaft and 43 out on the wheel according to road racing world
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post #3 of 36 Old 04-24-2015, 08:22 PM
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Quote:
Originally Posted by EcoRider View Post
Stock:
What are the stock chain link count, type, and front and rear sprocket tooth count?
520VF chain
112 Link
Front 14T
Rear 43T

Mav
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post #4 of 36 Old 04-24-2015, 08:27 PM
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Quote:
Originally Posted by EcoRider View Post
Stock:
What are the stock chain link count, type, and front and rear sprocket tooth count?
520VF Chain
112 Link
14T Front
43T Rear

Mav
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post #5 of 36 Old 04-24-2015, 09:47 PM
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What about Spacely Sprockets??
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post #6 of 36 Old 04-24-2015, 11:27 PM
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I think one sprocket change front = three sprocket change rear. One sprocket change front will not require chain alteration, three sprocket change rear might. Safe bet is making front sprocket changes:
+1 for low RPM cruising and fuel mileage
-1 for high RPM and acceleration
I don't have this bike in my hands yet, but I've heard no complaints about the gearing. Probably best gearing is stock to wring the most from this engine.
Edit: I'll go aluminum sprockets for sure after I get the bike broke in.
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Last edited by John; 04-24-2015 at 11:50 PM.
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post #7 of 36 Old 04-25-2015, 03:19 AM
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Quote:
Originally Posted by EcoRider View Post
Stock:
What are the stock chain link count, type, and front and rear sprocket tooth count?
520VF Chain
112 Links
14T Front
43T Rear

Mav
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post #8 of 36 Old 04-25-2015, 08:06 AM Thread Starter
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There are titanium sprockets as well.
I don't know if I'm going to be able to afford a bike like this, this year, but if I would do mods on the gears, I would definitely do +1t (or +2t on the front if it fits), and will use gearing commander for the rear sprocket.

Rear sprockets can be found all over the place, titanium ones; or stock sized steel ones.
I'm more for aluminum ones. They're good enough for eco riding.
Racing on the tracks, you might want to opt for titanium.

Last edited by EcoRider; 04-25-2015 at 08:09 AM.
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post #9 of 36 Old 04-25-2015, 01:57 PM
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Quote:
Originally Posted by EcoRider View Post
Stock:
What are the stock chain link count, type, and front and rear sprocket tooth count?
520VF Chain
112 Link
14T front
43T Rear

Mav
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post #10 of 36 Old 04-25-2015, 07:41 PM
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415 Conversions are here

I see the talk about doing your gearing to different size (s) if you are looking at reducing your rotating mass by over 2.5 lbs you might check out the conversion kits we are supplying at http://www.spearsenterprises.com/yamaha-r-3.html
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