17 T - Wrist Twisters
 
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post #1 of 27 Old 08-31-2008, 01:06 PM Thread Starter
 
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Smile 17 T

I replace my 16T stock front sprocket to a 17T, much less buzz specially on high speed. Hopefully it will payoff on my gas milage (alot of freeway riding).

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post #2 of 27 Old 08-31-2008, 02:30 PM
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I love my 17t

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post #3 of 27 Old 08-31-2008, 02:39 PM Thread Starter
 
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Are you getting better gas milage? What is your mpg? ( have a 919)

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post #4 of 27 Old 08-31-2008, 03:41 PM
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mario,

I think you will find an increase of between 12 and 20 miles on a full tank of gas with the 17t. If you stay away from supra-legal speeds on the freeway you will stretch the advantage out...

This, and the added benefits of lowering the vibrations and increased speedometer accuracy make this a sensible mod for many of us. I have been averaging 44.5 mpg with the 17t....hard to compare with others because each person's riding style is somewhat unique, though.

The best test is to try it and ride your normal routine. It is so easy to undo and not cost-prohibitive...so give it a serious go and share your impressions with us.

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post #5 of 27 Old 08-31-2008, 03:54 PM
 
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Love my 17t, too. That mod was the turning point for me. I actually started enjoying my 919 instead of regreting the trade of my VFR. Still like the Interceptor better as a total package, but the 17t sprocket really helps the 919 on the highway.

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post #6 of 27 Old 08-31-2008, 05:11 PM Thread Starter
 
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I've riden my 919 for about 75 miles with 17T, so far I like it very much.

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post #7 of 27 Old 08-31-2008, 05:21 PM
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post #8 of 27 Old 09-01-2008, 04:23 AM
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I went to the 17t sprocket about a month or so ago after reading most all of the posts on here about it. I think it completely changes the bike for the better. Very happy with this mod and probably the best one for the money.

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post #9 of 27 Old 09-01-2008, 09:13 AM
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Between the 17T mod, a PC3USB with the right map, and my keeping to no more than 105% of the legal speed limit, I get 50 to 55 mpg on my 110 mile round trip commute (speed limits are mostly 55, 60, and a bit at 70 mph).

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post #10 of 27 Old 09-01-2008, 12:32 PM
 
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I did this mod about a week ago. So far, so good.
How many RPM decrease are you all seeing at ~65 mph?
I think I'm only seeing about 200 RPM decrease, but maybe I didn't record accurately what it was before?

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post #11 of 27 Old 09-01-2008, 02:59 PM
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I have a 41 tooth rear sprocket left over from my ex VTR1000, which I changed funnily enough for, a 43 tooth rear (same as the 919) for better gearing. I changed it at approx 2000-2500kms from new. I plan to at least think about changing the 919 to this VTR sprocket at about the same mileage. I have done about 1400kms on my 919 at the moment. This would be similar to going to a 17 tooth front, almost, and since I already have the sprocket and know it fits, I may as well at least entertain the idea, right...!!! The 919 has plenty of low down power and I think it will easily handle it. The wheelbase my be extended a little with a 41 toother, but I don't think it will call for riding school. I doubt whether "I" would even notice any change in handling at all...

Actually, can anybody tell me how much longer it would make the wheelbase so I can make note for the chain adjuster and axle, which should hopefully still fit in...???

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post #12 of 27 Old 09-01-2008, 08:40 PM
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The tach to speedo relationship does not change, just the amount of wind through your hair at the indicated speed does.

It actually looks like you get worse mileage as the odometer is now (not reading as many miles as you actually travel) off but in reality you will be getting better mileage.

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post #13 of 27 Old 09-02-2008, 02:07 AM
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Damned it all. I measured up and it looks like adding a 41 tooth rear will not properly allow me to get the axle/adjusters back on and have enough clearance, as it will move the axle (and therefore the wheelbase) back by about 12 - 15mm (half an inch plus). I can't be bothered splitting the chain and whipping out a link or two so I ordered a 17 tooth front sprocket. Will pick it up tomorrow or day after. From what I read in here, I can get away with NOT having to alter the chain... Correct..???

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post #14 of 27 Old 09-02-2008, 07:31 AM
 
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Where do you order the 17t from?

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post #15 of 27 Old 09-02-2008, 07:33 AM
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Quote:
Originally Posted by Bryce919er View Post
It actually looks like you get worse mileage as the odometer is now (not reading as many miles as you actually travel) off but in reality you will be getting better mileage.

From the factory the speedometer is off as we all know. The odometer on the other hand is very close to being accurate. Myself and I know a few others have tested it via gps units.

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post #16 of 27 Old 09-02-2008, 08:21 AM
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Quote:
Originally Posted by cpg74 View Post
From the factory the speedometer is off as we all know. The odometer on the other hand is very close to being accurate. Myself and I know a few others have tested it via gps units.
Yep. So when you change the gearing it no longer is

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post #17 of 27 Old 09-02-2008, 07:03 PM Thread Starter
 
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Quote:
Originally Posted by McQueen278 View Post
Where do you order the 17t from?
I got it from a local Honda dealer. They probably got it from Tucker Rocky or Parts Unlimited. I just got back from a 160 mile ride, according to my calculation , I'm getting about 42 mpg (with 17T).

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post #18 of 27 Old 09-02-2008, 08:33 PM
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well........ i put a 17t on and i love the fact i still have "a lotta" acceleration.. but i must drive a lot harder than most.. (no chicken strips and the michelin man disapeared long enuff ago to declare him legally dead) i average 130 miles before the gas light comes on.. (4 gallons more or less) i am running a 07 919 with the flapper mod... and my drive is 22miles each way on 595 and I75 here in ft lauderdale.. i average 85-90 mph... with occasional bursts of are you joking mph... top ends at 162!!! btw i am 6'3 and 225 and would appreciate someone suggesting a handlebar to help stretch out my arms a bit.. (not trying to hyjack)..... oh yeah that 17t was the best $25 i spent in a long time



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post #19 of 27 Old 09-02-2008, 09:47 PM
 
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If you want really wanna have fun ya'll should be goin the other way. I've got a 15 tooth on now, it sure puts a smile on your face when ya hit the happy button.

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post #20 of 27 Old 09-02-2008, 10:07 PM
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Quote:
Originally Posted by barton664 View Post
well........ i put a 17t on and i love the fact i still have "a lotta" acceleration.. but i must drive a lot harder than most.. (no chicken strips and the michelin man disapeared long enuff ago to declare him legally dead) i average 130 miles before the gas light comes on.. (4 gallons more or less) i am running a 07 919 with the flapper mod... and my drive is 22miles each way on 595 and I75 here in ft lauderdale.. i average 85-90 mph... with occasional bursts of are you joking mph... top ends at 162!!! btw i am 6'3 and 225 and would appreciate someone suggesting a handlebar to help stretch out my arms a bit.. (not trying to hyjack)..... oh yeah that 17t was the best $25 i spent in a long time
I just purchased the suburban machinery bars and like them alot.

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post #21 of 27 Old 09-02-2008, 10:41 PM
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Suburban Machinery bars are nice, but last i saw they were running around 160. My Renthal Ultra lows were only 62. I also think the most used bars on here other than stock is the Renthal Ultra lows. Mainly because of price and availability.

I agree the 15t sprocket is amazing and I do not miss the 16t in the least. Lost a little top end, but worth it in my opinion.

'04 919---40k----6/18/10 SOLD

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post #22 of 27 Old 09-02-2008, 11:34 PM
 
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Quote:
Originally Posted by Doug85 View Post
If you want really wanna have fun ya'll should be goin the other way. I've got a 15 tooth on now, it sure puts a smile on your face when ya hit the happy button.
I hear what you are saying brother. I did the same thing

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post #23 of 27 Old 09-03-2008, 02:03 AM
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Quote:
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Where do you order the 17t from?
Local Honda dealer. He is looking around and will get back on a genuine Honda vs accessory job. Honda one cost about twice the price of accessory but I'll decide at the time, most likely tomorrow. The guy ordering it in is going to find out which of the accessory one's has a reputation for at least "some quailty" of build...

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post #24 of 27 Old 09-03-2008, 03:43 PM
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look on ldh's 919.org page and he gives a link.... i work at a honda dealer... (largest in the usa.. shameless plug i know.. i'm a salesman whatcha expect..) and afam is the only game in town and honda has them on backorder.... i called the people at the link and had it in like 4 days... wooo hoo... best $25 i ever spent..



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post #25 of 27 Old 12-09-2008, 02:06 PM
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Quote:
Originally Posted by barton664 View Post
look on ldh's 919.org page and he gives a link.... i work at a honda dealer... (largest in the usa.. shameless plug i know.. i'm a salesman whatcha expect..) and afam is the only game in town and honda has them on backorder.... i called the people at the link and had it in like 4 days... wooo hoo... best $25 i ever spent..
I'm now working for that company in the link and as the owner of RC51.org & 919.org I'm keeping those interests as priorities with the job as I make damn sure that I stock parts & offer deals specifically for RC51 & 919 owners

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post #26 of 27 Old 12-13-2008, 11:09 AM
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The 17T was the ticket for my bike, I LOVE IT!

Don't know where it came from, the bike came with it in the saddlebag when I bought it, I installed it and 350 rpm drop at 65 MPH so it is just what the Doc ordered for me!

I Can and will ride anything!
Bikes I own:
New addition 1978 CB750Four
2006 919
1994 home built springer
1984 KLR 600
1953 Servi-car (I gotta get this put back together)
1942 WLA (Gotta finish this one as well)
1985 Honda 200M ATC
1985 Honda ATC 70
1997 Yamaha Big Bear 350 4X4 ATV
Early 1984 Ironhead Sporty (Wife has laid claim to this bike)
1986 Sporty that I am putting a ironhead engine into
YEA BIGDAA I Gotta GUN!
It's not that I am punishing YOU, I am just taking YOUR money and giving it to LAZY Asses who refuse to get off the TIT of the Government...Obama to Joe the Plumber
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post #27 of 27 Old 12-13-2008, 11:39 AM
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hehe if nothing else I can always say I gave the world the 17T mod for the 919

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