19 tooth front sprocket.

Post Reply
Spoke
Forum Regular
Forum Regular
Posts: 46
Joined: Mon May 11, 2009 7:43 pm
Location: UNITED KINGDOM

19 tooth front sprocket.

Post by Spoke »

Hi all, are 19t or larger front sprockets available for a Prolink?
U.K.

steve murdoch icoa #5322
ICOA Member
ICOA Member
Posts: 3610
Joined: Tue Mar 04, 2003 10:12 am
Location: St. Catharines, On. Canada
Location: St. Catharines, On. Canada

Re: 19 tooth front sprocket.

Post by steve murdoch icoa #5322 »

JT doesn't list one but maybe if you contact them they can help you out.
Curious as to why?
http://www.jtsprockets.com/fileadmin/fi ... 202018.pdf

Spoke
Forum Regular
Forum Regular
Posts: 46
Joined: Mon May 11, 2009 7:43 pm
Location: UNITED KINGDOM

Re: 19 tooth front sprocket.

Post by Spoke »

steve murdoch icoa #5322 wrote:
Thu Sep 03, 2020 9:02 pm
JT doesn't list one but maybe if you contact them they can help you out.
Curious as to why?
http://www.jtsprockets.com/fileadmin/fi ... 202018.pdf
Thanks Steve I'll give them a try 😀👍🏻

User avatar
CBX-tras
ICOA Member
ICOA Member
Posts: 49
Joined: Tue Feb 16, 2010 2:29 pm
Location: Clinton Twp, Michigan
Location: Clinton Twp., Michigan, USA

Re: 19 tooth front sprocket.

Post by CBX-tras »

Sprockets from a late model Triumph are the same spline and chain pitch will fit your Pro-Link but require custom made spacers for proper alignment.

Here's a photo (upside down so you can see the number) JTF 1180 - 19 from my Prolink.

A 20T sprocket probably won't clear, not enough room. The 19T is tight and may require some clearance.
You do not have the required permissions to view the files attached to this post.

User avatar
EMS
ICOA Member
ICOA Member
Posts: 9763
Joined: Wed Mar 05, 2003 8:55 am
Location: North East OH, ICOA 3904

Re: 19 tooth front sprocket.

Post by EMS »

You probably have more choices changing the rear sprocket. Also easier to change. Going from 42T down to 40T in the rear will achieve about the same as going from 18T to 19T in the front.
To be understood is the exception
To be misunderstood is the rule.

Larry Zimmer
ICOA Web Post/Pix/Video Archive Mgt
ICOA Web Post/Pix/Video Archive Mgt
Posts: 1713
Joined: Mon Dec 15, 2003 3:32 pm
Location: Brighton, MI
Location: Brighton, Mich
Contact:

Re: 19 tooth front sprocket.

Post by Larry Zimmer »

IMHO going lower than stock front and 40 rear you WILL notice the drop when moving from a stop -- especially with a load and/or positive grade. CBX first gear is more a 'track' ratio than a general purpose ratio. More noticeable in a pro-link.
Larry Zimmer
cbxlarry@sbcglobal.net

User avatar
EMS
ICOA Member
ICOA Member
Posts: 9763
Joined: Wed Mar 05, 2003 8:55 am
Location: North East OH, ICOA 3904

Re: 19 tooth front sprocket.

Post by EMS »

Stock is 18/42. So, if you go lower in the front AND lower in the rear, you may not change anything. 18/42 = 1:2.33 17/40 = 1:2.35.
Whereas 19/42 = 1:2.21 and 18/40 = 1:2.22
To be understood is the exception
To be misunderstood is the rule.

User avatar
CBX-tras
ICOA Member
ICOA Member
Posts: 49
Joined: Tue Feb 16, 2010 2:29 pm
Location: Clinton Twp, Michigan
Location: Clinton Twp., Michigan, USA

Re: 19 tooth front sprocket.

Post by CBX-tras »

The reasoning for me to go with a 19T primary was due to my limited choices of a rear sprocket with the VFR SSSA wheel.

The 19T brought my bike back to (about) where the stock ratios would be.

User avatar
EMS
ICOA Member
ICOA Member
Posts: 9763
Joined: Wed Mar 05, 2003 8:55 am
Location: North East OH, ICOA 3904

Re: 19 tooth front sprocket.

Post by EMS »

Is your VFR rear wheel a 18"???
To be understood is the exception
To be misunderstood is the rule.

User avatar
CBX-tras
ICOA Member
ICOA Member
Posts: 49
Joined: Tue Feb 16, 2010 2:29 pm
Location: Clinton Twp, Michigan
Location: Clinton Twp., Michigan, USA

Re: 19 tooth front sprocket.

Post by CBX-tras »

EMS wrote:
Tue Sep 08, 2020 8:16 am
Is your VFR rear wheel a 18"???
No, 17" with a 170mm tire. Stock from '94 to '97 but had limited selection of rear sprockets due to clearance issues at the wheel.

cbxchris
Forum Regular
Forum Regular
Posts: 39
Joined: Wed Mar 09, 2016 5:21 pm
Location: Watford, just north of London
Location: Watford, England

Re: 19 tooth front sprocket.

Post by cbxchris »

CBX-tras wrote:
Sun Sep 06, 2020 9:01 am
Sprockets from a late model Triumph are the same spline and chain pitch will fit your Pro-Link but require custom made spacers for proper alignment.

Here's a photo (upside down so you can see the number) JTF 1180 - 19 from my Prolink.

A 20T sprocket probably won't clear, not enough room. The 19T is tight and may require some clearance.
That's interesting Tras about the Triumph sprocket having the same splines, and just out of interest how did you find out about that, and also on another note, when the sprocket bolt is tight is there still some movement on the sprocket ? Mine has, i expect it supposed to have to allow for allignment, but you would expect the flop to wear the splines cheers in advance cbxChris

User avatar
CBX-tras
ICOA Member
ICOA Member
Posts: 49
Joined: Tue Feb 16, 2010 2:29 pm
Location: Clinton Twp, Michigan
Location: Clinton Twp., Michigan, USA

Re: 19 tooth front sprocket.

Post by CBX-tras »

A LOT of research on my part determined that the Triumph sprockets had the same spline size.

Spacers must be made and used to bring the Triumph sprocket to the thickness and alignment of the CBX output shaft to the particular wheel sprocket. I do this by using a laser. (Shown here on an 1100F).
You do not have the required permissions to view the files attached to this post.

Post Reply

Return to “HANDLING: Suspension, Gearing, Frame Bracing, Non X Handling Part Upgrades, Rim Replacement Options, and more”