gearing? sprockets - BMW G310 R/GS Forum
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post #1 of 62 (permalink) Old 09-20-2017, 06:38 AM Thread Starter
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Question gearing? sprockets

finally received wifes new g310r, nice overall bike, but def needs a little help, I am looking to change either front or rear sprocket, it needs more travel/top end, does anyone have anyplace that is selling sprockets yet, I haven't been able to find anything yet, We plan to replace the exhaust to recoup some of the lost torque with the sprocket gearing change, anything would help........thanks
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post #2 of 62 (permalink) Old 09-20-2017, 10:15 AM
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Not much luck so far...
The BMW official parts only offer standard gearing as replacement, no optional sizes.
And I did not find any aftermarket selling them yet.
As for exhaust: changing for an Akrapovic for example would let you gain a theorical 1.1 Nm of Torque (and let you loose a real $600). Poor figures to justify the investment it seems...
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post #3 of 62 (permalink) Old 09-20-2017, 12:31 PM Thread Starter
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did some research so far theoretical increase with exhaust is 2.7 with a reduction in weight, minor but on a small bike def noticeable and through revzilla only runs $490.00 and they have price matching and ive found em for less so for that cost and if it helps.....after ive regeared it then worth it, the bike def needs the regeared, on US hiways it would always be running near redline just to keep up,
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post #4 of 62 (permalink) Old 09-25-2017, 03:35 PM
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Originally Posted by cfaircraft View Post
did some research so far theoretical increase with exhaust is 2.7 with a reduction in weight, minor but on a small bike def noticeable and through revzilla only runs $490.00 and they have price matching and ive found em for less so for that cost and if it helps.....after ive regeared it then worth it, the bike def needs the regeared, on US hiways it would always be running near redline just to keep up,
Difference in price and specs from your findings is yours probably concerns the racing version. I was referring to the street legal one with catalytic converter, which offers very minimal difference in term of performance vs stock.
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post #5 of 62 (permalink) Old 09-25-2017, 03:37 PM
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Back on topic of sprockets so far I've just found 1 company offering something. It's an italian brand called Chiaravalli and at least one dealer offers them online:
https://www.redracingparts.com/engli.../G310R2015.php

Unfortunately no offering for front sprockets. So far it seems they offer 39,43,44,45,47,49 T REAR sprockets. So as you can see all of these (except the 39T) would improve the bottom end (quicker acceleration but slower top speed - not what you are aiming for. And the 39T would probably not have a big impact...)

Will post other findings as it goes..
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post #6 of 62 (permalink) Old 09-27-2017, 12:06 PM Thread Starter
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tx for sprocket info, and yes agree on the exhaust, the stock seems like a waste of time and money, I am looking at racing exhaust, not gonna race...lol, but at least should notice some improvement
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post #7 of 62 (permalink) Old 10-04-2017, 02:28 PM
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Remus had a Nice illegal exhaust without cat
Not street legal
but who cares
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post #8 of 62 (permalink) Old 10-04-2017, 02:41 PM Thread Starter
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gonna go with the akrapovic cat bake race exhaust from revzilla,
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post #9 of 62 (permalink) Old 10-04-2017, 02:43 PM
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Remus auspuff high exhaust
looks nice I think
not in stock in USA i guess

Last edited by tonnetje; 10-04-2017 at 02:47 PM.
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post #10 of 62 (permalink) Old 10-05-2017, 05:31 AM Thread Starter
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looked at the remus, again on their website only applicable to the 2017, model, don't know if there is a diff, and akropovic looks better to me, I had a remus system on my r1100s, and hated it, the only thing it did was make obnoxious noise, no better performance, I removed and sold it off
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