17T Cog - Wrist Twisters
 
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post #1 of 18 Old 10-04-2007, 08:14 PM Thread Starter
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17T Cog

I installed my 17T front cog today. Took about 25 minutes. It felt like some of my male hormones leaked out the pipes. I could feel the difference in mid range, but, oh,soo fine in 6th gear. Lost the buzz at 70mph.

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post #2 of 18 Old 10-05-2007, 04:55 AM
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The effective wheel base has shortened. You should also notice a quicker turn in when negotiating a turn.

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post #3 of 18 Old 10-05-2007, 07:29 AM
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Your gas mileage should go up a little (assuming you ride the same), and your speedometer is much closer to "actual" now. I have a single side CBR900RR type exhause system with a carbon fiber aftermarket can that is louder than stock. I think the lower RPM at gear situation of the 17T has kept the local police from leaning on me for noise.

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post #4 of 18 Old 10-05-2007, 11:07 AM
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I ran the 17t for about 2000 miles.

It was great cruising going down the hiway but never could quit wishing for that lost acceleration. The 16t won out after that. Roll ons and just plain ole arm yanking acceleration are a most excellent feeling.

It's a fool who looks for logic in the chambers of the human heart.
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post #5 of 18 Old 10-05-2007, 11:19 AM
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I love my 17T I don't know what all the vibe fuss is about!

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post #6 of 18 Old 10-05-2007, 03:49 PM
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Quote:
Originally Posted by brokerecord View Post
I installed my 17T front cog today. Took about 25 minutes. It felt like some of my male hormones leaked out the pipes. I could feel the difference in mid range, but, oh,soo fine in 6th gear. Lost the buzz at 70mph.
Add a 44T rear and life will be good,or go with a 520 16/41 combo

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post #7 of 18 Old 10-05-2007, 05:43 PM
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Brokerecord, Did you use an aftermarket sprocket or an OEM?

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post #8 of 18 Old 10-06-2007, 10:13 AM Thread Starter
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17T

I got the Afam from Dan Kyle.

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post #9 of 18 Old 10-06-2007, 11:45 AM
 
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Im Running 16 / 46 and LOVE IT.....buzz away...wheelies are effertless...and stop light to stop light I have kicked a few bikes asses that "slept" on the leave cause its a 919

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post #10 of 18 Old 10-06-2007, 05:45 PM
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17 shows the 9r lump for what it is...because i believe the 17t c/s sprocket is the best match for intended use and exposes performance for what it is...

16/43 masks the issue but you give up the cruising rpm in the sweet spot

16/44 gets u there, but again, interstate use is questionable

15/45 rocks the 9r just fine but gets old at highway speeds run for any length at time...i'll do a 400mi day w/ it but it's buzzy

when using the 17t, adjust your wrist to throttle position, crank it more than u'r used to and you'll find some of that missing acceleration and your cruising rpms will remain comfortable

i've heard many complain about the 9r's "umpf" but i've observed most riders don't whack it WOT to really unleash what's available in the first place cause trust me, WOT on the 15/45 doesn't leave other naked riders wondering what happened to the 919, it's right there w/ 'em...zrex, fizzie, sp3...whatever

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post #11 of 18 Old 10-07-2007, 06:15 AM
 
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15/45 or 16/46 that is the question roughly what rpm would that equate to at around 60/70 mph as the boys in blue are getting real fussy with the speed limit here(might as well have fun lower down the speedo).Used to be speed limit + 10%.NOW it seems they dont get enough money as where they put the cameras sure arent doing anything with fatalities.
Sorry got carried away

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post #12 of 18 Old 10-07-2007, 08:22 AM
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http://www.919.org/
Go to mods.
Drop down to gearing spreadsheet.
Must have EXCEL which I don't anymore.

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post #13 of 18 Old 10-07-2007, 01:13 PM
 
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Quote:
Originally Posted by tvetree View Post
http://www.919.org/
Go to mods.
Drop down to gearing spreadsheet.
Must have EXCEL which I don't anymore.
EXCEL "reader" can be downloaded free from Microsoft. Just letting everyone know.

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post #14 of 18 Old 10-07-2007, 01:27 PM
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Originally Posted by motorwerks919 View Post
EXCEL "reader" can be downloaded free from Microsoft. Just letting everyone know.

Ok just downloaded the reader...How do I get it to change the values?(on the chart).Curser will light up the box but not change the #

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post #15 of 18 Old 10-07-2007, 03:11 PM
 
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If you need a program to work on any MS Office application go to www.openoffice.org. This is shareware and should do the job for you.

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post #16 of 18 Old 10-09-2007, 04:44 PM Thread Starter
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17T

Oh crap, I couldn't stand the pressure, I put my 16T back on. I missed the sudden squirt out of curves and in town. Besides I have a throttle-lock to take care of the buzz. After 500-550 miles with the 17T, I noticed that the rpm and indicated speed were close to the same, with the 17T close to being accurate.

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post #17 of 18 Old 10-09-2007, 05:09 PM
 
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Quote:
Originally Posted by brokerecord View Post
Oh crap, I couldn't stand the pressure, I put my 16T back on. I missed the sudden squirt out of curves and in town. Besides I have a throttle-lock to take care of the buzz. After 500-550 miles with the 17T, I noticed that the rpm and indicated speed were close to the same, with the 17T close to being accurate.
If the buzz problem you are having is in the handlebars, there is easy ways to reduce it, like filling the bars or changing to different bars.

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post #18 of 18 Old 10-09-2007, 05:50 PM
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Quote:
Originally Posted by brokerecord View Post
Oh crap, I couldn't stand the pressure, I put my 16T back on. I missed the sudden squirt out of curves and in town. Besides I have a throttle-lock to take care of the buzz. After 500-550 miles with the 17T, I noticed that the rpm and indicated speed were close to the same, with the 17T close to being accurate.
Lemme know if you want to sell the 17t (even though I'm broke right now).

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