Chain combatibility with stock rear sprocket - Wrist Twisters
 
Thread Tools Display Modes
post #1 of 15 Old 04-15-2012, 01:18 PM Thread Starter
Woodward Ave
 
Bryan's Avatar
 
Join Date: Mar 2012
Location: Metro Detroit
Posts: 130
Rep Power: 1
 
Chain combatibility with stock rear sprocket

I did some reading about the different sprocket setups for the 919 and I have come to a couple conclusions. Currently I have the 15/45 3.0 setup (Vortex) and it's very fun, but out of control at times. You really have to work the clutch to keep the front wheel down, which kind of defeats the purpose. I still have the stock sprockets and chain. I was thinking about using the stock rear sprocket and buying a different aftermarket 15 tooth front sprocket making it 15/43 putting me around 2.86. My parts guy at the local Honda shop told me that I can't use the aftermarket 15 tooth sprocket currently on the bike with the stock 43 tooth because the of compatibility issues with the chain. Will any 15 tooth front sprocket be compatible with my stock chain? I don't want to waste any money ordering something on ebay before checking with you guys.

Bryan is offline  
Sponsored Links
Advertisement
 
post #2 of 15 Old 04-15-2012, 01:35 PM
Le So Cal Troll
 
nd4spdbh's Avatar
 
Join Date: Sep 2009
Location: So Cal
Posts: 5,766
Rep Power: 1
 
Quote:
Originally Posted by Bryan View Post
I did some reading about the different sprocket setups for the 919 and I have come to a couple conclusions. Currently I have the 15/45 3.0 setup (Vortex) and it's very fun, but out of control at times. You really have to work the clutch to keep the front wheel down, which kind of defeats the purpose. I still have the stock sprockets and chain. I was thinking about using the stock rear sprocket and buying a different aftermarket 15 tooth front sprocket making it 15/43 putting me around 2.86. My parts guy at the local Honda shop told me that I can't use the aftermarket 15 tooth sprocket currently on the bike with the stock 43 tooth because the of compatibility issues with the chain. Will any 15 tooth front sprocket be compatible with my stock chain? I don't want to waste any money ordering something on ebay before checking with you guys.
as long as its a 530 15t sprocket you will be fine.

I ran the same combo ... 15 / 43 for a while... but found the same thing as you did with the 15 /45... it was just too much (and thats saying something comming from my hooligan ass).. With 16/43 i can be MUCH smoother and still pull it up in first when ever and second if conditions are right.

Pretty sure it was this exact sprocket i ordered... i only ran it for like 500mi or so and went back to stock.

JT Front Sprocket 15T Honda CB900F (CB919) 02-07 | eBay

nd4spdbh is offline  
post #3 of 15 Old 04-15-2012, 01:36 PM
Hastatus Prior
 
TheBeeDeeGee's Avatar
 
Join Date: Sep 2011
Location: Mobile
Posts: 1,570
Rep Power: 1
 
You can do it, dunno what that guys talking about. Stock rear sprocket and aftermarket 15 tooth on the front I mean. If both the sprockets are 530 sprockets it'll work fine.

"A motorcycle is not just a two-wheeled car; the difference between driving a car and climbing onto a motorcycle is the difference between watching TV and actually living your life."
-2005 CBR 600 F4i
-2001 RC51 ** SOLD
-2002 VFR 800**SOLD
-2002 919 **SOLD
-2006 599 ** WRECKED
TheBeeDeeGee is offline  
post #4 of 15 Old 04-15-2012, 01:59 PM
Optio
 
Join Date: Jan 2006
Location: Lousiville
Posts: 903
Rep Power: 1
 

Awards Showcase
Veteran Donation 
Total Awards: 2

He maybe right,The vortex is most likly a 520.But you are talking of getting a new sprocket to go with the stock rear and chain so it doesn't matter.Just make sure that The chain/front/rear sprockets are all the same pitch(530/520).


I run the 17/44 with a 520 chain.When I first started messing with the ratios I used all "530"stuff as it would mix with what I had on hand.So I got to try 16/44,16/43 (stock) ,17/43, and 17/44.When I was sure I had what I wanted the next replacment chain "Kit" was a 520 set up.

Using the 17/44 gearing is a touch taller than stock(2.69 vs 2.59),Going to the 520 gave back some of the bottom end I lost with the taller gears.Had I not did this myself I would have never belived I would notice any change from a 530 to a 520 ,but i did.I belive that if I had went with a lower set of gears Like say the 16/44(2.75) or 15/43(2.87) I doubt I would have noticed the diffence in chains as much if at all...

tvetree is offline  
post #5 of 15 Old 04-15-2012, 04:13 PM Thread Starter
Woodward Ave
 
Bryan's Avatar
 
Join Date: Mar 2012
Location: Metro Detroit
Posts: 130
Rep Power: 1
 
I am pretty sure the chain on the bike right now is a 520. Luckily I have both sizes so there are more ratio options. I want the perfect combo. Let the experimenting begin.. I'll probably end up accepting the stock setup when it's all said and done

Bryan is offline  
post #6 of 15 Old 04-15-2012, 06:19 PM
McTavish
 
mcromo44's Avatar
 
Join Date: Oct 2007
Location: Calgary
Posts: 5,601
Rep Power: 1
 
I find the 16/45 520 combination to be a really nice.
Between the ratio change, the lighter chain and lighter alloy rear sprocket, one can feel the differerence, just seems to spin up easier all the time.

mcromo44 is offline  
post #7 of 15 Old 04-15-2012, 07:13 PM
Burn-em Upus Asphaltus
 
rickard919's Avatar
 
Join Date: Apr 2008
Location: Calgary, Canada
Posts: 3,802
Rep Power: 1
 

Awards Showcase
Donation 
Total Awards: 1

Quote:
Originally Posted by mcromo44
I find the 16/45 520 combination to be a really nice.
Between the ratio change, the lighter chain and lighter alloy rear sprocket, one can feel the differerence, just seems to spin up easier all the time.
+1 I have the same ratio with the 520 and love it!

Spoiler:

rickard919 is offline  
post #8 of 15 Old 04-15-2012, 09:28 PM Thread Starter
Woodward Ave
 
Bryan's Avatar
 
Join Date: Mar 2012
Location: Metro Detroit
Posts: 130
Rep Power: 1
 
16/45 sounds like a great setup. Is the engine revving around 5k at highway speed? I know exactly what to get now. Thanks for the info. This will be on the bike in the next couple days if the dealership has them in stock.

VTX 16 Tooth Front Sprocket Honda 919 02-06 520 Conv

Bryan is offline  
post #9 of 15 Old 04-16-2012, 07:45 AM
McTavish
 
mcromo44's Avatar
 
Join Date: Oct 2007
Location: Calgary
Posts: 5,601
Rep Power: 1
 
Quote:
Originally Posted by Bryan View Post
16/45 sounds like a great setup. Is the engine revving around 5k at highway speed? I know exactly what to get now. Thanks for the info. This will be on the bike in the next couple days if the dealership has them in stock.

VTX 16 Tooth Front Sprocket Honda 919 02-06 520 Conv
The actual RPMs at precisely 62.14 mph are 4090, regardless of what the tach says or speedo says, that based on 16/45 and a rear tire of same diameter as stock tire.
The tachs over read a bit.
The speedos over read.
I proofed it all on my own, and during some dyno work had road speed check done.
The above 4090 RPM was indeed coincident with 62.14 mph on the dyno.
Factor the above for any 6th gear road speed you want to review re RPMs.
80 MPH would be at 5265 RPMs

mcromo44 is offline  
post #10 of 15 Old 04-16-2012, 12:49 PM Thread Starter
Woodward Ave
 
Bryan's Avatar
 
Join Date: Mar 2012
Location: Metro Detroit
Posts: 130
Rep Power: 1
 
With my current 15/45 combo the speedo is off by a mile. Didn't realize how far the tach was off too. Next investment (after new rubber) will be a speedohealer. Will that correct the tach too?

Bryan is offline  
post #11 of 15 Old 04-16-2012, 02:18 PM
McTavish
 
mcromo44's Avatar
 
Join Date: Oct 2007
Location: Calgary
Posts: 5,601
Rep Power: 1
 
Quote:
Originally Posted by Bryan View Post
With my current 15/45 combo the speedo is off by a mile. Didn't realize how far the tach was off too. Next investment (after new rubber) will be a speedohealer. Will that correct the tach too?
The speedo healer won't cure the tach.
In my case the tach was reading 4200 when the engine was truly at 4090 RPM.
(very easy to check your tacho accuracy if you have a PowerCommander and a laptop)

mcromo44 is offline  
post #12 of 15 Old 04-16-2012, 02:23 PM
Community Moderator
 
g00gl3it's Avatar
 
Join Date: Jun 2009
Location: Idaho
Posts: 11,613
Rep Power: 1
  

Awards Showcase
Wrist Twisters Event Attendance Wrist Twisters Event Attendance Wrist Twisters Event Attendance 
Total Awards: 3

If you get aftermarket gauges, you can fix the speedo AND the tach ;-)


Well, tach is still reading the same values as the old gauges, so maybe not, but hey, new gauges look cool and it's an easy fix for the speedo problem. AND, it's actually calculated off the diameter of the front tire, so as the tire wears out, you could actually re-calibrate it if you wanted to be super accurate.

2009 Aprilia Tuono - Ginger
2001 XR650R BRP (Big Red Pig)
2006 Honda 599 - Ex wrecked it :-D
2007 Honda CB900F (sold)
2006 Honda VTX 1300C (sold)
YouTube Channel
g00gl3it is offline  
post #13 of 15 Old 04-16-2012, 02:33 PM Thread Starter
Woodward Ave
 
Bryan's Avatar
 
Join Date: Mar 2012
Location: Metro Detroit
Posts: 130
Rep Power: 1
 
When you dyno'd your bike did it estimate a top speed? I read that with the 15/45 setup the top speed is just under 120. I think my old Suzuki Marauder could almost make it that high.. that is with +1 on the front sprocket.

Bryan is offline  
post #14 of 15 Old 04-16-2012, 07:27 PM
McTavish
 
mcromo44's Avatar
 
Join Date: Oct 2007
Location: Calgary
Posts: 5,601
Rep Power: 1
 
Quote:
Originally Posted by Bryan View Post
When you dyno'd your bike did it estimate a top speed? I read that with the 15/45 setup the top speed is just under 120. I think my old Suzuki Marauder could almost make it that high.. that is with +1 on the front sprocket.
Dynos can not estimate top speed.
You need drag coefficient info to do that, and even then a dyno won't tell you.

You read garbage info if it said a 15/45 919 tops out at less than 120.
Obviously it's going to be way higher than that, and the second digit will be a 3 and not a 2.

mcromo44 is offline  
post #15 of 15 Old 04-16-2012, 07:37 PM
Community Moderator
 
g00gl3it's Avatar
 
Join Date: Jun 2009
Location: Idaho
Posts: 11,613
Rep Power: 1
  

Awards Showcase
Wrist Twisters Event Attendance Wrist Twisters Event Attendance Wrist Twisters Event Attendance 
Total Awards: 3

Quote:
Originally Posted by mcromo44 View Post
Dynos can not estimate top speed.
You need drag coefficient info to do that, and even then a dyno won't tell you.

You read garbage info if it said a 15/45 919 tops out at less than 120.
Obviously it's going to be way higher than that, and the second digit will be a 3 and not a 2.
This is the highest that I've personally "scientifically" tested. I had a 'bit' more RPM's, throttle was of course already pegged, but I didn't have more road.
Attached Images
File Type: jpg Speedo.jpg (174.4 KB, 6 views)

2009 Aprilia Tuono - Ginger
2001 XR650R BRP (Big Red Pig)
2006 Honda 599 - Ex wrecked it :-D
2007 Honda CB900F (sold)
2006 Honda VTX 1300C (sold)
YouTube Channel
g00gl3it is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Wrist Twisters forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome