Author Topic: 17 teeth sprocket  (Read 3847 times)

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Skye

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17 teeth sprocket
« on: March 17, 2014, 11:04:36 »
I'm looking for a 17 sprocket to front. Anyone know if it is available or even will fit as a replacement.
In Long distance rides I need to take the RPM down for longer legs between fuel-ups.
My consumption in 5500 rpm and a speed in 140 km/h is 0.8. Below 5000 it is 0.6

Athanman

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Re: 17 teeth sprocket
« Reply #1 on: March 17, 2014, 11:44:58 »
Im not so sure if you are able to replace the original (16 teeth) with a 17 teeth sprocket. My colleaques replaced  their original front sprocket (16 teeth sprocket with a 15 teeth sprocket ) in order to be their Varadero wilder and faster in lows  , BUT as soon as we are up to have a long distance ride out , then they always to fit back the original sprocket( 16 teeth) in order to save fuels and drive in normal conditions (usually 140km/h).I havent heared so far none put bigger front sprocket . :D

Iyaronman

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Re: 17 teeth sprocket
« Reply #2 on: March 18, 2014, 05:43:04 »
when i had my vstrom1000, trying to avoid its horrible vibration, i did all the possible combinations with higher or lower front sprocket and rear as well,

i would go for rear46 instead of front17

anyway, i must say that even with the vstrom, at the end i went back to original.
with my Vara i am not thinking about that modification because for me it is a perfect machine  ;)
« Last Edit: March 18, 2014, 06:01:13 by Iyaronman »
suzuky intruder, vmax, gpz1000, vstrom1000

Skye

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Re: 17 teeth sprocket
« Reply #3 on: March 18, 2014, 08:14:09 »
It is to costful to upgrade just for a 6 gear and injection... :D
Will await this fall what Honda will present in Cologne this autumn.

V Saarela

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Re: 17 teeth sprocket
« Reply #4 on: March 20, 2014, 10:34:26 »
Conversion to 520 chain and use 900rr(98) or 600rr(03) sprockets  :) However, 17 will not fit, it´surely will be to big in the Varadero.

Maybe easier to go for a 44 sprocket back. Without counting it should give the same as one in the front). Chain needs also to be cut to 110.

Iyaronman

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Re: 17 teeth sprocket
« Reply #5 on: March 20, 2014, 16:12:15 »
yesterday a checked again. my GPS shows 140km at 5000rpm and 151km at 5500rpm.

where is that different coming from?
suzuky intruder, vmax, gpz1000, vstrom1000

Skye

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Re: 17 teeth sprocket
« Reply #6 on: March 20, 2014, 17:37:07 »
Difference between MK1 vs MK2 and 3

Carburator 5 gears,
Injection 6 gears

Ironman.WP

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Re: 17 teeth sprocket
« Reply #7 on: March 27, 2014, 11:54:48 »
I noticed 15 through to17 Front sprockets advertised on ebay,  as brand specific for the Varadero's???  I don't have the knowledge as to how many teeth front and rear are needed or even the specific chain required. I took it on face value that it might be for increased spead at lower revs or less teeth for more power with higher revs...  As anybody tried the 17' yet?  Or alternatively used a different rear sprocket than the OEM one, and if so what chain is used. What difference does it make in fuel consumption.? I have a mk1 and would love to be ale to get better consumption!
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Skye

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Re: 17 teeth sprocket
« Reply #8 on: March 27, 2014, 13:34:22 »
In your case, Ironman.wp an adjustment of the carbs is needed. Found all threads you had been written in to have a summary. Just adjust the carbs via vacuum gauge will give your fuel consumption a drop to normal 6,5 per 100 kilometer.

Tweak in bench can give another deciliter to 5, 5,5 per 100 K

17 tooth sprocket will not fit. My idea was to just only change the front sprocket easy on the type of driving I was up to. Cutting chain and change rear sprocket made the versatile idea I had demolished.

Ironman.WP

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Re: 17 teeth sprocket
« Reply #9 on: March 27, 2014, 14:07:58 »
Thanks for that Skye. Bike at the hospital as we speak. Hopefully he'll be up and running soos. Sorry for the stupid questions on the sprokets and chain, was trying to get my head around the extra tooth bit..  Currently I get 150km/h when I do exactly 6000rpm. Would be interesting to know what an extra tooth would contribute to the speed at those revs.  Is the OEM 15 or 16 on my bike? I know my vchain needs replacement, when looking at the adjuster markings. And there I would like to raise another question!  ...o-ringor x-chain?? I don't use that fixed chain oiling thing. I make use of Liquid Molly chain wax. Any hints?
Four wheels moves the body   ....but two wheels moves the soul..

SilverD

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Re: 17 teeth sprocket
« Reply #10 on: March 27, 2014, 17:01:03 »

Going from a 16 to a 17 tooth front sprocket will make about a 6% change to either your speed at the same RPM or your RPM at the same speed.

...and here is a site you can plunk the variables in to and see what'll happen..
http://www.gearingcommander.com/



Thanks for that Skye. Bike at the hospital as we speak. Hopefully he'll be up and running soos. Sorry for the stupid questions on the sprokets and chain, was trying to get my head around the extra tooth bit..  Currently I get 150km/h when I do exactly 6000rpm. Would be interesting to know what an extra tooth would contribute to the speed at those revs.  Is the OEM 15 or 16 on my bike? I know my vchain needs replacement, when looking at the adjuster markings. And there I would like to raise another question!  ...o-ringor x-chain?? I don't use that fixed chain oiling thing. I make use of Liquid Molly chain wax. Any hints?

JosepM

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Re: 17 teeth sprocket
« Reply #11 on: March 27, 2014, 20:08:59 »
yesterday a checked again. my GPS shows 140km at 5000rpm and 151km at 5500rpm.

where is that different coming from?

An injected Varadero makes the wheel turn, in 6th gear, at 28.7 km/h/1000rpm. This means 143.5 @ 5000 and 157.8 @ 5500 .

But wheels slide, and speed loss is normally some 1.5-2% per 100km/h (that is around 1.7 x (speed /100)^2 loss). In your case, your loss @ 5500 rpm seems a bit too high.

I guess that's why high speeds wear tyres so fast  8)

Greetings,

Josep

Ironman.WP

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Re: 17 teeth sprocket
« Reply #12 on: March 27, 2014, 21:18:16 »
Brilliant!!  Thanks a lot SilverD. I've learned more from the participation by, and shared knowledge of the members on this forum than I've done in all this time I've had my bike. Appreciated!!! 👍
Four wheels moves the body   ....but two wheels moves the soul..

zo10000

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Sprocket combination for Varadero
« Reply #13 on: September 02, 2014, 20:21:55 »
Hi guys!

I have to replace my chain kit on my Varadero and I was thinking to modify a little bit the transmission ratio.
Has anybody try to put different sprockets other than the standard ones? How does it fit and how is acting the bike after that?
I was thinking to put a 17 teeth sprocket on the front and 45 on the back or the other combination would be 16 teeth on the front and 45/ 44 for the rear sprocket.
Any suggestions?
I'm not young enough to think I know everything.

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zebulon

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Re: Sprocket combination for Varadero
« Reply #14 on: September 02, 2014, 21:51:52 »
Welcome here Zo10000
Sure if you make a little search on this forum, you will have some answer!  ;)
Like here : http://www.vci-forum.com/index.php?topic=523.msg5422#msg5422
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