Upgrading front sprocket? KPR 200

Dustoff42 · 11-11-2022, 03:06 AM

Im thinking about putting a 17 tooth sprocket into the front of my kpr 200 with the stock rear. Is the 428 chain ok for these bikes with that ratio? Has anyone tried this? I notice the 15 t front that comes with it has a metal edge to the inner part of the sprocket that the others I got did not. Will that cause any wobble with the chain?

herbie · 11-11-2022, 06:30 PM

1) Yes, the 428 chain is fine with the amount of hp that the KPR puts out. I would advise a good quality Japanese 428 chain, if you want to upgrade it.

2) Yes, I tried the 17t sprocket and I didn't care for it because the bike just doesn't have enough hp to push it with that high of gearing. Although Jim a member on here is running a 17t I believe and likes it. I have a 16t on mine.

3)No, the replacement sprocket won't cause a wobble because it's thinner than the original sprocket, if anything it may make a tiny bit more vibration into the foot pegs, but I haven't really noticed it.

JimS · 11-11-2022, 10:13 PM

Herbie's right - I'm running a 17 tooth and like it. Most of my daily commute is highway miles and it does great and is averaging just over 102mpg.

Dustoff42 · 11-12-2022, 05:11 AM

Two great answers. Thank you guys both. Exactly what I was looking for.

Aj092013 · 10-22-2023, 04:33 PM

Thank you for posting this here I've found it helpful in my research of things to do whilst upgrading.

11-11-2022, 03:06 AM	#1
Dustoff42 Join Date: Aug 2022 Posts: 38	Upgrading front sprocket? KPR 200 Im thinking about putting a 17 tooth sprocket into the front of my kpr 200 with the stock rear. Is the 428 chain ok for these bikes with that ratio? Has anyone tried this? I notice the 15 t front that comes with it has a metal edge to the inner part of the sprocket that the others I got did not. Will that cause any wobble with the chain?
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11-11-2022, 06:30 PM	#2
herbie Join Date: May 2019 Location: Illinois Posts: 864	1) Yes, the 428 chain is fine with the amount of hp that the KPR puts out. I would advise a good quality Japanese 428 chain, if you want to upgrade it. 2) Yes, I tried the 17t sprocket and I didn't care for it because the bike just doesn't have enough hp to push it with that high of gearing. Although Jim a member on here is running a 17t I believe and likes it. I have a 16t on mine. 3)No, the replacement sprocket won't cause a wobble because it's thinner than the original sprocket, if anything it may make a tiny bit more vibration into the foot pegs, but I haven't really noticed it. __________________ 2022 Venom KPR 200 Red- the fastest color 16t and 46t sprockets, NGK Iridium CPR8EAIX-9, aftermarket full exhaust system. Top speed 81GPS 2023 Venom SS3 KP mini 150– Nibbi carb, Nibbi air filter, aftermarket muffler, decat 2022 Venom Ghost chopper 250 1997 Honda GL1500 Goldwing 1978 Kawasaki KL250 https://youtube.com/@herbiesgarage681
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11-11-2022, 10:13 PM	#3
JimS Join Date: Jul 2022 Location: New Mexico Posts: 81	Herbie's right - I'm running a 17 tooth and like it. Most of my daily commute is highway miles and it does great and is averaging just over 102mpg.
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11-12-2022, 05:11 AM	#4
Dustoff42 Join Date: Aug 2022 Posts: 38	Two great answers. Thank you guys both. Exactly what I was looking for.
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10-22-2023, 04:33 PM	#5
Aj092013 Join Date: Oct 2023 Posts: 4	Thank you for posting this here I've found it helpful in my research of things to do whilst upgrading.
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