cbr500r sprockets (need some help)
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Much talked about topic on this forum. Lots of info on here too. It's something I keep promising to do. I think if I go ahead I will try a larger and a smaller rear sprocket to compare it myself, I think there are advantages and disadvantages no matter what you choose.
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I and others here have tried the sets from Vortex Racing and have good results. I got their "go fast" kit which drops one tooth from the front sprocket. There is a noticeable added zip on take off and slightly higher revs at higher speeds. The kit is great if you are due for due for all new parts or just want to upgrade. They also sell individual pieces as well. Good luck.
I went with a Vortex +2 rear and loved it. Made a massive difference. It would surprise a lot of larger bikes out of the hole.
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I went with a tooth down front and a tooth up on the rear. Very happy with the extra punch and was able to keep the stock chain with only 500 miles on it. I went with a Vortex aluminum on the back which is much lighter than stock for some important un-sprung weight savings.
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A quick look through a "fitment" chart for a Vortex rear sprocket shows a fit for 2013-2020. I have the link below, maybe verify I'm looking correctly? You'll see the sprocket.. scroll down below it's description and click on fitment.. then choose your model..
Vortex Steel Rear Sprocket | MotoSport
Yes I did see that, but I would like a cheaper one like a JT sprocket supplied in the uk, but they don't list a 2019 for some reason.. It's an experiment of different ratios so I don't want to spend £45 plus for a sprocket. It's been said a NC750 one will fit but it has an offset issue.A quick look through a "fitment" chart for a Vortex rear sprocket shows a fit for 2013-2020. I have the link below, maybe verify I'm looking correctly? You'll see the sprocket.. scroll down below it's description and click on fitment.. then choose your model..
Vortex Steel Rear Sprocket | MotoSport
Honda part codes
Front sprocket (15 teeth)
23801-MGZ-J00 — 2013–16 F, R, and X models, replaced by 23801-MGZ-J01
23801-MGZ-J01 — 2017–18 F, R, and X models
23801-MKP-D00 — 2019–20 F, R, and X models
Rear sprocket (41 teeth)
41201-MGZ-D00 — 2013–18 F, R, and X models
41201-MKP-J00 — 2019–20 F and R models
41201-MKP-J80 — 2019–20 X models
Chain (520 with O-rings)
40540-MGS-D31 (D.I.D. 520VO-120ZB 112 Links) — 2013–18 F, R, and X models
40540-KYJ-902 (D.I.D. 520VF-120ZB 108 Links) — 2019–20 F, R, and X models
40540-K87-A02 (R.K. 520KLO2-120LJFZ 110 Links) — 2019–20 F, R, and X models
Chain Master Links
40545-MGS-D31 (D.I.D.) — 2013–18 F, R, and X models
40545-KYJ-902 (D.I.D.) — 2019–20 F, R, and X models
40531-K87-A01 (R.K.) — 2019–20 F, R, and X models
No idea what happened in 2019 other than the D.I.D. chain being upgraded to their latest O-ring model, and adding R.K. chains as a source. The number of links listed are from how they are described in some parts catalogue descriptions, but I am pretty sure that is wrong and they are also still 112 link chains.
Third parties sell sprocket and chain kits listed as being 2013–20 compatible, so I would be surprised if there was any meaningful change to the sprockets other maybe a redesign which effects neither their mounting nor teeth.
Front sprocket (15 teeth)
23801-MGZ-J00 — 2013–16 F, R, and X models, replaced by 23801-MGZ-J01
23801-MGZ-J01 — 2017–18 F, R, and X models
23801-MKP-D00 — 2019–20 F, R, and X models
Rear sprocket (41 teeth)
41201-MGZ-D00 — 2013–18 F, R, and X models
41201-MKP-J00 — 2019–20 F and R models
41201-MKP-J80 — 2019–20 X models
Chain (520 with O-rings)
40540-MGS-D31 (D.I.D. 520VO-120ZB 112 Links) — 2013–18 F, R, and X models
40540-KYJ-902 (D.I.D. 520VF-120ZB 108 Links) — 2019–20 F, R, and X models
40540-K87-A02 (R.K. 520KLO2-120LJFZ 110 Links) — 2019–20 F, R, and X models
Chain Master Links
40545-MGS-D31 (D.I.D.) — 2013–18 F, R, and X models
40545-KYJ-902 (D.I.D.) — 2019–20 F, R, and X models
40531-K87-A01 (R.K.) — 2019–20 F, R, and X models
No idea what happened in 2019 other than the D.I.D. chain being upgraded to their latest O-ring model, and adding R.K. chains as a source. The number of links listed are from how they are described in some parts catalogue descriptions, but I am pretty sure that is wrong and they are also still 112 link chains.
Third parties sell sprocket and chain kits listed as being 2013–20 compatible, so I would be surprised if there was any meaningful change to the sprockets other maybe a redesign which effects neither their mounting nor teeth.
I think you are right, possibly all the same.
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