919 Gearing - Wrist Twisters
 
Thread Tools Display Modes
post #1 of 22 Old 07-16-2008, 08:59 PM Thread Starter
Centurion
 
Join Date: Apr 2006
Location: Right Here
Posts: 1,330
Rep Power: 1
 
919 Gearing

Seems I cant source a 44T rear to go with a 17T front. How about a 16/41 combo? Anyone done it? Should accomplish the same thing as 17/44 with less weight from smaller sprockets & 2 less link chain (I assume on the length).

I want less highway RPM, but since some have complained a 17 takes away too much I was going for 17/44. A 16/41 is 2.56 ratio--right in between the 17/44 (2.59) & 17/43 (2.53 which is said to make the speedo perfect).

Thoughts?

Bryce919er is offline  
Sponsored Links
Advertisement
 
post #2 of 22 Old 07-16-2008, 09:12 PM
Jeremy
 
flyinghornet's Avatar
 
Join Date: Apr 2008
Location: Burlington, Vermont
Posts: 79
Rep Power: 1
 

Awards Showcase
Veteran 
Total Awards: 1

Have you tried sprocketspecialists.com, I'm pretty sure they can custom make a sprocket to your needs

You only live life once, but if you live it right once is enough
flyinghornet is offline  
post #3 of 22 Old 07-16-2008, 10:30 PM
My friends call me Bill
 
REDROKR's Avatar
 
Join Date: May 2008
Location: Harrison, Arkansas
Posts: 1,893
Blog Entries: 2
Rep Power: 1
 

Awards Showcase
Donation 
Total Awards: 1

REDROKR is offline  
post #4 of 22 Old 07-17-2008, 12:16 AM
Al
 
Join Date: Jun 2008
Location: Auckland, New Zealand
Posts: 187
Rep Power: 1
 
Quote:
Originally Posted by Bryce919er View Post
Seems I cant source a 44T rear to go with a 17T front. How about a 16/41 combo? Anyone done it? Should accomplish the same thing as 17/44 with less weight from smaller sprockets & 2 less link chain (I assume on the length).

I want less highway RPM, but since some have complained a 17 takes away too much I was going for 17/44. A 16/41 is 2.56 ratio--right in between the 17/44 (2.59) & 17/43 (2.53 which is said to make the speedo perfect).

Thoughts?
Funny thing you mention 16/41 because soon after buying my former VTR1000 I replaced the stock rear 41 tooth sprocket with a 43 tooth (it made all the difference too). Now I have a 919 and it has a 43 tooth rear and I just found the almost brand new VTR1000 41 toother out in the garage. I changed them at almost the exact mileage I now have on my 919. I was thinking, just today about putting the 41 toother on. I too was wondering how it would handle this. The 919 seems to have heaps of mid range grunt, most of which I use in my style of riding. I was wondering how much extra chain length would have to be taken up on the adjusters. I don't want to split the chain and drop a few links incase it doesn't like the 41 toother...

CeeBee919 is offline  
post #5 of 22 Old 07-18-2008, 01:06 PM
Franklin McGillacutty
 
riquefied919's Avatar
 
Join Date: Mar 2008
Location: Aurora IL
Posts: 1,181
Rep Power: 1
 
http://www.sidewindersprockets.com/index.html You can try these guys. They are in St. Charles IL the whole Midwest thing is kinda vauge

riquefied919 is offline  
post #6 of 22 Old 07-18-2008, 01:42 PM
The 919 project continues
 
mdtoney's Avatar
 
Join Date: Sep 2006
Location: Seattle, WA
Posts: 2,427
Rep Power: 1
 

Awards Showcase
Donation Veteran 
Total Awards: 2

I had the local Honda dealer order the 44t for me - they had a bunch of different catalogs to choose from.

mdtoney is offline  
post #7 of 22 Old 07-18-2008, 08:18 PM Thread Starter
Centurion
 
Join Date: Apr 2006
Location: Right Here
Posts: 1,330
Rep Power: 1
 
I just changed my order to 17/43 instead, but thanks.

Bryce919er is offline  
post #8 of 22 Old 07-19-2008, 07:34 AM
Tirone
 
MisterB's Avatar
 
Join Date: Aug 2006
Location: Ottawa, Canada
Posts: 86
Rep Power: 1
 
Quote:
Originally Posted by Bryce919er View Post
I just changed my order to 17/43 instead, but thanks.
So, to be clear, the 17/43 arrangement will offer "better mid range torque"... because it "adjusts" the engine's rpm so at the speed you nomally cruise the engine revs in the optimum range for "optimal torque"?

MisterB is offline  
post #9 of 22 Old 07-19-2008, 09:02 AM
Primus Pilus
 
Join Date: May 2008
Posts: 3,400
Rep Power: 1
 

Awards Showcase
Wrist Twisters Event Attendance Donation 
Total Awards: 2

Quote:
Originally Posted by riquefied919 View Post
http://www.sidewindersprockets.com/index.html You can try these guys. They are in St. Charles IL the whole Midwest thing is kinda vauge
He is the coolest guy I've had the pleasure of speaking with. He hooked me up with titanium chain and sprockets on my quad and had a heap of information to give. Great Customer service also! So the short version is "Sidewinder sprockets Kickass"

Ripper is offline  
post #10 of 22 Old 07-19-2008, 01:08 PM Thread Starter
Centurion
 
Join Date: Apr 2006
Location: Right Here
Posts: 1,330
Rep Power: 1
 
Quote:
Originally Posted by MisterB View Post
So, to be clear, the 17/43 arrangement will offer "better mid range torque"... because it "adjusts" the engine's rpm so at the speed you nomally cruise the engine revs in the optimum range for "optimal torque"?
Not really. You will be turning less RPM for a given speed.

Bryce919er is offline  
post #11 of 22 Old 07-20-2008, 09:41 AM
Optio
 
touring919's Avatar
 
Join Date: Apr 2007
Location: OH
Posts: 917
Rep Power: 1
 
Gearing will not change the mid range, low end, or top end at all!!! Might be a pet peeve of mine (obviously spelling isnt) but gearing only changes the rpm at a given speed and torque at the wheel. You either get more or less torque at the wheel at all engine speeds. Power DOES NOT CHANGE. Personally, I like lower gearing. I went with 16 tooth front and like it alot. Its about 6% lower gearing. 6% rise in RPM, 6% rise in torque, roughly. With a heavy tug on the bars she can now power wheelie in 2nd. No clutch abuse needed.

touring919 is offline  
post #12 of 22 Old 07-20-2008, 06:39 PM
Dragon Slayer
 
oak1971's Avatar
 
Join Date: Jun 2008
Location: wisconsin
Posts: 1,069
Rep Power: 1
 
530 to 520 should I do it?

I want to go to a 17-44 setup. The bike has 20k on with the original chain and sprockets. Can I (should I) switch to a 520 size? There seem to be more options there.

oak1971 is offline  
post #13 of 22 Old 07-21-2008, 06:42 AM
Franklin McGillacutty
 
riquefied919's Avatar
 
Join Date: Mar 2008
Location: Aurora IL
Posts: 1,181
Rep Power: 1
 
It is a multiplier like anything else if you know net hp at the cranck shaft. I'm not sure of that # personallay that will not change. How ever a change in the number of engine revs (cylinders acully firing) per wheel rotation will change the power curve at the rear wheel after the multiplier is figured.

riquefied919 is offline  
post #14 of 22 Old 07-21-2008, 07:04 PM
Optio
 
Join Date: Jan 2006
Location: Lousiville
Posts: 903
Rep Power: 1
 

Awards Showcase
Veteran Donation 
Total Awards: 2

I run a 17/44 520 set up and I love it.I ride a lot and have yet to see any diff in chain life from the 530,I thought the 520 would wear faster but so far it has not.The 520 gives every bit of zip that the 17/44 took away when I ran that with a 530.(it's been a bit though memeory may be baised).To me it seams quicker than stock(17/[email protected] vs 16/[email protected]).
I ran a 16/[email protected] was a bit to much on the tall side
Know that being said I am a daily rider who doesn't really push the edges,your results may vary...

tvetree is offline  
post #15 of 22 Old 07-22-2008, 12:42 PM
Aquilifer
 
bucky's Avatar
 
Join Date: Apr 2007
Location: alaska
Posts: 1,249
Rep Power: 1
 
16/43 520 in the past, 16/46 520 this year. a good 520 chain has NOTHING to fear from our bikes, even with 60 extra N2O h.p. and repeated drag launches and burnouts.

bucky is offline  
post #16 of 22 Old 07-22-2008, 01:58 PM
Optio
 
touring919's Avatar
 
Join Date: Apr 2007
Location: OH
Posts: 917
Rep Power: 1
 
Requefied. It does not change hp. Only torque at the wheel.

Power = Force * Distance / time

Putting a lower gear in incrases the force but decreases the distance by the same amount so power stays the same. Higer gear gives more distance but lower force so again. power never changes.

touring919 is offline  
post #17 of 22 Old 07-22-2008, 03:29 PM
Franklin McGillacutty
 
riquefied919's Avatar
 
Join Date: Mar 2008
Location: Aurora IL
Posts: 1,181
Rep Power: 1
 
I said that it just changes the the # of engine fires per tire rev. I'm quite sure you can lift 100 lbs. if you put iy on 1:3 pulley setup it will feel like 300 lbs if you put it 3:1 it will feel like 33.3333 lbs but it will onlt be 100 lbs.

riquefied919 is offline  
post #18 of 22 Old 07-23-2008, 10:14 AM
Aquilifer
 
bucky's Avatar
 
Join Date: Apr 2007
Location: alaska
Posts: 1,249
Rep Power: 1
 
i believe a thrust chart would show the difference, as sport rider's been publishing on many of their recent road tests.

bucky is offline  
post #19 of 22 Old 05-10-2013, 05:39 PM
Tirone
 
Join Date: Mar 2013
Posts: 71
Rep Power: 1
 
What about going down 1-2 in the rear with a stock 16 front

02hornetrider is offline  
post #20 of 22 Old 05-10-2013, 06:16 PM
Need money for parts.
 
ganktor's Avatar
 
Join Date: Feb 2011
Posts: 629
Rep Power: 1
 
https://docs.google.com/spreadsheet/...Gc&usp=sharing
Attached Images
File Type: jpg thread resurrection.jpg (30.6 KB, 8 views)

ganktor is offline  
post #21 of 22 Old 05-10-2013, 06:18 PM
Tirone
 
Join Date: Mar 2013
Posts: 71
Rep Power: 1
 
Spreadsheet good keyword thanks

02hornetrider is offline  
post #22 of 22 Old 05-10-2013, 08:55 PM
Tirone
 
Join Date: Mar 2013
Posts: 71
Rep Power: 1
 
Ok found a 16/41 is about the same as 17/44. I found that from a 07 thread but cant find the gear ratios to figure out other combinations...wheres the ratios

02hornetrider 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