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Hi all, first time poster and im sure this question has been asked before BUT...

What sprockets have we all used apart from the standard 15/41?? just seems a little excessive at near 5k revs at 100kmph/60mph. would love to drop that down abit, now i know it will lose a little down low but not overly worried about that... do i go a 16 on the front? maybe even 17 tooth? oorr 16 front with a 39 rear? its mainly a town ridden bike but will do some highway cruising.

im just looking for peoples opinions, as its my first road bike and dont know HEAPS about em. I have come from a life of riding dirt bikes and fast cars.

any input is greatly appreciated!!
 

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There are tons of threads on this.
Search "gearing up" or "16T" or "17T"

Most common is a 16T counter sprocket from what I've read, or at least it's the most talked about.
 

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Welcome to the Forum. Upper Right of this page , just above this thread window.. "Custom Search".. Type in 16T or 17T sprocket change.. I'd suggest using the "VB Search" over the "Google Search". OR upper Left of this page,, Under "Forums".. "2013+ CBR500 Tech Section".. "Engine and Technical Discussion".. And Others.. you can view previously discussed topics at your leisure. Still have questions? Ask again. :nerd:
 

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I just changed the front to a rubber center 16t jt. I put a 38 Vortex aluminum on the rear. Results: I no longer have to take off in second to get through the intersection without shifting and my top speed is about 20% higher than stock setup. I’m finally able to Keep up with the bigger bikes and get away from the cars on the local freeways. I’m in need of a speedo healer but I would guess I’m going above 90 @ 5000rpm in 5th gear. I can still pull the front end up with a good rev before popping the clutch
 

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I installed a 16 tooth JT Steel rubber cushioned sprocket on my 2018 CB500x. It fit perfectly, and made the gear range drop just enough. The JT sprocket fit perfectly, and was an easy change to make.
 

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16T Front Sprocket

Hi all, first time poster and im sure this question has been asked before BUT...

What sprockets have we all used apart from the standard 15/41?? just seems a little excessive at near 5k revs at 100kmph/60mph. would love to drop that down abit, now i know it will lose a little down low but not overly worried about that... do i go a 16 on the front? maybe even 17 tooth? oorr 16 front with a 39 rear? its mainly a town ridden bike but will do some highway cruising.

im just looking for peoples opinions, as its my first road bike and dont know HEAPS about em. I have come from a life of riding dirt bikes and fast cars.

any input is greatly appreciated!!
Welcome Dribble, I can concur with the other posts that moving to a 16T front (retaining 39T rear) has made the bike much easy at slow speed take off and also helps when you're in the curves given that 4th and 5th now have longer legs. Together with adding mirror extenders (got tired of looking at my elbows) and a small PUIG screen this has been a great mod in terms of improving the overall riding enjoyment. FYI I'm a newbie as well - only been on the bike 6 months.
 

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The moment I first rode my new 2017 model, with standard 15/41 gearing, I knew a 16T countershaft sprocket was not going to get the job done. I fitted a 17T following instructions on this forum re how to lightly modify the case saver and the OEM chain worked fine. You just have to move the rear wheel forward to suit. If an 18T were made for the bike, and it would fit, I'd have that on. As it is, the 17 reduces rpm by about 600 at 60 mph indicated. Well worth the $33 for the sprocket from Sprocket Specialists and it makes longer rides at cruising speed more enjoyable. Adds to engine life also, I should think..

Ralph
 

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I'm still using the stock 15/41 T ratio, but as time for a chain replacement gets closer I'm thinking in just changing for a 39T rear sprocket, but probably preserving the front for not having any change in the odometer calibration (if there were no need to do it because of wear). The pro's for a rear smaller 39T are lower rpm range without loosing acceleration capability as possible.
In addition a lighter rear sproket made of alluminium or other material could gain some weight, I' thinking in some brands like Renthal that could have a replacement for our bikes. Does anybody knows about this items? I believe some people here has gone with the Honda NC 750 39T. Also in case of preserving the 41T rear think I've read that the new 2019 500's model has a lighter black 41T rear sprocket.
 

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I'm still using the stock 15/41 T ratio, but as time for a chain replacement gets closer I'm thinking in just changing for a 39T rear sprocket, but probably preserving the front for not having any change in the odometer calibration (if there were no need to do it because of wear). The pro's for a rear smaller 39T are lower rpm range without loosing acceleration capability as possible.
In addition a lighter rear sproket made of alluminium or other material could gain some weight, I' thinking in some brands like Renthal that could have a replacement for our bikes. Does anybody knows about this items? I believe some people here has gone with the Honda NC 750 39T. Also in case of preserving the 41T rear think I've read that the new 2019 500's model has a lighter black 41T rear sprocket.
Any sprocket change will need speedometer correction.
 

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Any sprocket change will need speedometer correction.
Slevin, You're right of course. But my R3 and GSX250R both consistently show approx. 10% high on the speedometer, over actual road speed. While I don't like it, I'm aware of it, and simply adjust. My question.. Couldn't some sprocket changes actually help correct, for example, a bike as I described above? More importantly, what device do you recommend using to "correct" the discrepancies in speedometers, that I suspect are the norm. :nerd:
 

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Any sprocket change will need speedometer correction.
Slevin, You're right of course. But my R3 and GSX250R both consistently show approx. 10% high on the speedometer, over actual road speed. While I don't like it, I'm aware of it, and simply adjust. My question.. Couldn't some sprocket changes actually help correct, for example, a bike as I described above? More importantly, what device do you recommend using to "correct" the discrepancies in speedometers, that I suspect are the norm. /forum/images/CBR500Riders_2015/smilies/tango_face_glasses.png
Yes, you are correct. If a bike is reading higher and you get a sprocket that would correct it, you wouldn't need a speedo correction.

Speedohealer or speedodrd make ones that are supposed to be easy to use. I took a look at where it needs to plug in on my 14F and decided against it because I have no idea how I would get my hands in there.
Im only at 6.6% low so I just make the adjustments.
 

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Had a 38T on for a while. Was a bang on 7% speedo correction, first was most noticeable for change not having to rev it as far. Highway it dropped rpm ~500-600, with those long distance runs seeing a slight improvement in fuel economy.
Swapped back to stock for 1/4 mile times with mates, haven't bothered going back, not that there was that much seat of the pants diff in acceleration, but there is a slight loss.
 

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I have used the vortex kit from revzilla, up two in the back down one in the front. It’s fast off the line up to about 85-90. But I like speed early
 

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The vortex kit from Revzilla is pretty good. Currently have the stock ratio on mine with the vortex kit and I love them.
 
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