RX4 Parts Interchange/Suppliers

Chris_Top_Her · 11-26-2020, 01:51 AM

This thread should be useful for identifying parts form other bikes or non CSC suppliers to source RX4 parts. The unavailability of a front sprocket has me thinking this will become useful as it fills up.

Chris_Top_Her · 11-26-2020, 01:57 AM

Save

Chris_Top_Her · 11-26-2020, 01:57 AM

I am currently waiting to see if OTOM can get the 14t 530 front sprocket for the NC450. They sell a 13t (amazon/aliexpress), which is a size down. A user on the FB page replaced his 14t front sprocket with a JT sprocket for a Ducati 1098,999,749. It's a 15t 520. You can use a 530 chain on a 520, however I want MAXIMUM interval, so I want a high quality chain, and new properly matched hardware.

JT front sprockets Ducati P/N is JTF742.15. The .xx (15) after the part number is the tooth count. Courtesy of Mike Davis

I want a 530 in my case, with 14 t so I've ordered a 92' GSXR sprocket to test

Chris_Top_Her · 11-27-2020, 10:32 PM

Ok so, I had recived some information that led me to believe the front sprocket was a 14t stock.. I counted it and its a 13t, which OTOM sells (amazon/aliexpress). Once I get it can condirm fit it ill add it to the top list. Since the Ducati 1098 520 sprockets fit, and come in different teeth, its possible that the 1200/1260 multistage fits.. its a 530 (we use 530, but a 530 chain will fit 520 with some extra room) and it has the lip that we need for spacing. I have not tested it though. I'm not sure I want to lower the bottom end.

pyoungbl · 11-28-2020, 09:33 PM

I have owned a few Ducks and each had a 14 tooth front sprocket. If the countershaft spline is common to RX4 and Ducati it will be a great aftermarket source.

Bob Kelly · 05-27-2022, 04:34 AM

Doesn't the RX4 have a 13 spline on the engine ? if anything I want a bigger sprocket on the front staying the same serves no purpose to me in stock configuration the bike cruises at 70~75 mph fine but the RPM's are way up there ! and it's Buzzy at that speed !
so larger front and smaller rear are the way to go for me ! ( get that RPM down at cruise)
....
so has anyone came up with a useable larger front sprocket yet ?
....
Bob.......

11-26-2020, 01:51 AM	#1
Chris_Top_Her Join Date: May 2020 Location: San Antonio, Texas Posts: 62	RX4 Parts Interchange/Suppliers This thread should be useful for identifying parts form other bikes or non CSC suppliers to source RX4 parts. The unavailability of a front sprocket has me thinking this will become useful as it fills up. __________________ CSC RX4 2020
	0

11-26-2020, 01:57 AM	#2
Chris_Top_Her Join Date: May 2020 Location: San Antonio, Texas Posts: 62	Save __________________ CSC RX4 2020
	0

11-26-2020, 01:57 AM	#3
Chris_Top_Her Join Date: May 2020 Location: San Antonio, Texas Posts: 62	I am currently waiting to see if OTOM can get the 14t 530 front sprocket for the NC450. They sell a 13t (amazon/aliexpress), which is a size down. A user on the FB page replaced his 14t front sprocket with a JT sprocket for a Ducati 1098,999,749. It's a 15t 520. You can use a 530 chain on a 520, however I want MAXIMUM interval, so I want a high quality chain, and new properly matched hardware. JT front sprockets Ducati P/N is JTF742.15. The .xx (15) after the part number is the tooth count. Courtesy of Mike Davis I want a 530 in my case, with 14 t so I've ordered a 92' GSXR sprocket to test __________________ CSC RX4 2020
	0

11-27-2020, 10:32 PM	#4
Chris_Top_Her Join Date: May 2020 Location: San Antonio, Texas Posts: 62	Ok so, I had recived some information that led me to believe the front sprocket was a 14t stock.. I counted it and its a 13t, which OTOM sells (amazon/aliexpress). Once I get it can condirm fit it ill add it to the top list. Since the Ducati 1098 520 sprockets fit, and come in different teeth, its possible that the 1200/1260 multistage fits.. its a 530 (we use 530, but a 530 chain will fit 520 with some extra room) and it has the lip that we need for spacing. I have not tested it though. I'm not sure I want to lower the bottom end. __________________ CSC RX4 2020
	0

05-27-2022, 04:34 AM	#6
Bob Kelly Join Date: Jan 2022 Location: Weed, California. Posts: 271	Doesn't the RX4 have a 13 spline on the engine ? if anything I want a bigger sprocket on the front staying the same serves no purpose to me in stock configuration the bike cruises at 70~75 mph fine but the RPM's are way up there ! and it's Buzzy at that speed ! so larger front and smaller rear are the way to go for me ! ( get that RPM down at cruise) .... so has anyone came up with a useable larger front sprocket yet ? .... Bob....... __________________ It's too late when you've gone too far !
	0

11-28-2020, 09:33 PM	#5
pyoungbl Join Date: Feb 2016 Location: Portsmouth, Virginia, USA Posts: 632	I have owned a few Ducks and each had a 14 tooth front sprocket. If the countershaft spline is common to RX4 and Ducati it will be a great aftermarket source.
	1