GSX1400 Owners .org

Technically Speaking => Chains & Sprockets => Topic started by: northern on Tuesday, 21 February 2017, 03:42 AM

Title: 17 Teeth front sprocket
Post by: northern on Tuesday, 21 February 2017, 03:42 AM
Does anyone have experience with 17 teeth front sprocket on our bike?
I know, 14 have a lot of torque, but I'm just wondering :)
Title: Re: 17 Teeth front sprocket
Post by: froudy on Tuesday, 21 February 2017, 03:51 AM
Have a play on Gearing Commander northern...It'll give you some idea of how a 17t will affect things.
I would imagine that it would liven accelleration up a bit, as if it wasn't fast enough already ;)

http://www.gearingcommander.com/
Title: Re: 17 Teeth front sprocket
Post by: kja on Tuesday, 21 February 2017, 04:40 AM
A 17 tooth front sprocket is oem size for a gen 1 Busa. Straight swap.
Title: Re: 17 Teeth front sprocket
Post by: northern on Tuesday, 21 February 2017, 05:58 AM
Actually, I know how to do it and I have done -1 teeth on my previous 600cc yamaha... I know where to get sprocket and it's not expensive at all.

Theoretically: higher torque on rear wheel, but "shorter" gears. Or actually, sorter time between switching gears... But what about feeling?
Just want to know - will I feel it during acceleration? :)  (I'm not saying 14 is to slow for me :) )

Do you have experience with 14?
Title: Re: 17 Teeth front sprocket
Post by: froudy on Tuesday, 21 February 2017, 06:12 AM
I haven't done it on mine as I'm happy as is due to mostly motorway miles..
I guess for the cost of a 17T sprocket it would be worth just trying it to see if you like it or not.
Title: Re: 17 Teeth front sprocket
Post by: northern on Tuesday, 21 February 2017, 06:27 AM
you right, this is what I probably will do...
Title: Re: 17 Teeth front sprocket
Post by: GSXIV on Tuesday, 21 February 2017, 05:39 PM
Quote from: northern on Tuesday, 21 February  2017, 06:27 AM
you right, this is what I probably will do...
I`d be keen to know how it goes :) been thinking about the same myself.
Title: Re: 17 Teeth front sprocket
Post by: Bov on Tuesday, 21 February 2017, 05:46 PM
I put a 19 on mine and don't really notice much difference with acceleration but its a fair bit longer in gears meaning no gear change half way thru an intersection when pulling away from lights. it also makes speedo accuracy about 100% accurate, improves fuel economy and range and I wouldn't now go back to stock.
Title: Re: 17 Teeth front sprocket
Post by: gsxbarmy on Tuesday, 21 February 2017, 06:16 PM
there is of course this spreadsheet you can download from here, which you can play with to adjust tyre sizes and sprocket ratios to "see" the impact before purchasing

http://gsx1400owners.org/forum_test/index.php?topic=362.0
Title: Re: 17 Teeth front sprocket
Post by: froudy on Tuesday, 21 February 2017, 07:15 PM
Quote from: Bov on Tuesday, 21 February  2017, 05:46 PM
I put a 19 on mine and don't really notice much difference with acceleration but its a fair bit longer in gears meaning no gear change half way thru an intersection when pulling away from lights. it also makes speedo accuracy about 100% accurate, improves fuel economy and range and I wouldn't now go back to stock.

Where did you find a 19T sprocket Bov?
I hunted for one a while back, with no success :confused1:
Title: Re: 17 Teeth front sprocket
Post by: grog on Tuesday, 21 February 2017, 07:29 PM
Bov, i like that idea, couple of questions. does chain length need to be changed ? bike obviously handles it ok. no harder to take off? no clearance probs as youve done it. 3k revs is now spot on 100 you think? where do i get one? thanks mate.
Title: Re: 17 Teeth front sprocket
Post by: northern on Tuesday, 21 February 2017, 09:12 PM
Quote from: GSXIV on Tuesday, 21 February  2017, 05:39 PM
Quote from: northern on Tuesday, 21 February  2017, 06:27 AM
you right, this is what I probably will do...
I`d be keen to know how it goes :) been thinking about the same myself.
Have to wait few months, before I would be able to roll out. Usually only in aprill I'm starting my season :( (only because of weather conditions :) )
Title: Re: 17 Teeth front sprocket
Post by: northern on Tuesday, 21 February 2017, 09:33 PM
Quote from: gsxbarmy on Tuesday, 21 February  2017, 06:16 PM
there is of course this spreadsheet you can download from here, which you can play with to adjust tyre sizes and sprocket ratios to "see" the impact before purchasing

http://gsx1400owners.org/forum_test/index.php?topic=362.0
those are numbers... feeling is much more important :)
Title: Re: 17 Teeth front sprocket
Post by: Snapey on Tuesday, 21 February 2017, 11:57 PM
Quote from: grog on Tuesday, 21 February  2017, 07:29 PM
Bov, i like that idea, couple of questions. does chain length need to be changed ? bike obviously handles it ok. no harder to take off? no clearance probs as youve done it. 3k revs is now spot on 100 you think? where do i get one? thanks mate.

http://www.ebay.com.au/itm/Esjot-Sprocket-Front-19T-SUZUKI-GSX-1400-2001-2008-/172473559719?hash=item282839aaa7:g:uV8AAOSwKfVXDo8F

Title: Re: 17 Teeth front sprocket
Post by: VladTepes on Tuesday, 21 February 2017, 11:57 PM
Dammit. The sensible bov option or the quick 17t option... decisions....
Wait. Leave as is is cheapest!
Title: Re: 17 Teeth front sprocket
Post by: froudy on Wednesday, 22 February 2017, 12:56 AM
Can't find a 19T front sprocket in the UK :furious:
Title: Re: 17 Teeth front sprocket
Post by: Blubber on Wednesday, 22 February 2017, 01:01 AM
Quote from: froudy on Wednesday, 22 February  2017, 12:56 AM
Can't find a 19T front sprocket in the UK :furious:

Not even Sprocket Unlimited or Talon?
Title: Re: 17 Teeth front sprocket
Post by: froudy on Wednesday, 22 February 2017, 01:35 AM
Quote from: Blubber on Wednesday, 22 February  2017, 01:01 AM
Quote from: froudy on Wednesday, 22 February  2017, 12:56 AM
Can't find a 19T front sprocket in the UK :furious:

Not even Sprocket Unlimited or Talon?

Good point Blubber...I was hunting on Ebay.
Title: Re: 17 Teeth front sprocket
Post by: Bov on Wednesday, 22 February 2017, 05:34 AM
Quote from: grog on Tuesday, 21 February  2017, 07:29 PM
Bov, i like that idea, couple of questions. does chain length need to be changed ? bike obviously handles it ok. no harder to take off? no clearance probs as youve done it. 3k revs is now spot on 100 you think? where do i get one? thanks mate.
chain length should be ok and clearance is fine. Rpm is about 2950 at indicated / true 100 according to sat nav. As snapey said metalgear who are in north brisbane and on ebay stock them
Title: Re: 17 Teeth front sprocket
Post by: grog on Wednesday, 22 February 2017, 07:04 PM
thanks Snapey n Bov. will get one for next chain  renew. Esjot are highly rated. 120 bucks cheaper than oem. will get both sprockets from them. my chain will be zzz EK, supposedly the best. cant fault the EK i have at moment. very good price.
Title: Re: 17 Teeth front sprocket
Post by: BlackAdder on Saturday, 11 March 2017, 08:56 AM
http://www.demon-tweeks.co.uk/motorcycle/sprockets/bike/suzuki/2003/gsx1400-k3/renthal-front-sprocket-18-tooth-530-pitch-oe

I ordered Renthal fron and rear from US if I remember correct, but I suppose if you drop those guys an email, they might have em ordered.
Title: Re: 17 Teeth front sprocket
Post by: froudy on Saturday, 11 March 2017, 09:06 AM
Quote from: BlackAdder on Saturday, 11 March  2017, 08:56 AM
http://www.demon-tweeks.co.uk/motorcycle/sprockets/bike/suzuki/2003/gsx1400-k3/renthal-front-sprocket-18-tooth-530-pitch-oe

I ordered Renthal fron and rear from US if I remember correct, but I suppose if you drop those guys an email, they might have em ordered.

I've never been impressed with Demon Tweeks...
It's always "Prices From" which puts me off right away. If they can't state their price then I'm not even going to bother looking any further :furious:
Title: Re: 17 Teeth front sprocket
Post by: BlackAdder on Saturday, 11 March 2017, 09:15 AM
Oh, didn't know that.

I actually ordered my renthal fron sprocket from kneedraggers.com but I suppose they dont exist anymore. But back then it cost 26$ and it was actually 16 teeth  :imrgreen:
Title: Re: 17 Teeth front sprocket
Post by: Mick_J on Saturday, 11 March 2017, 09:09 PM
Motorbike bits are a secondary thing for Demon Tweeks, it's mostly car stuff they are into.
Title: Re: 17 Teeth front sprocket
Post by: froudy on Sunday, 12 March 2017, 09:15 PM
Quote from: mjgt on Saturday, 11 March  2017, 09:09 PM
Motorbike bits are a secondary thing for Demon Tweeks, it's mostly car stuff they are into.

Yes..That's true.
Title: Re: 17 Teeth front sprocket
Post by: kja on Sunday, 12 March 2017, 10:24 PM
The service from these guys is excellent, if they dont have it in stock, they get it, or make it..............

http://www.bandcexpress.co.uk/
Title: Re: 17 Teeth front sprocket
Post by: Steve B on Wednesday, 17 May 2017, 06:09 AM
Got a 17 tooth front on mine, and it's quite lively......
Title: Re: 17 Teeth front sprocket
Post by: Tony Nitrous on Wednesday, 17 May 2017, 03:25 PM
Quote from: kja on Sunday, 12 March  2017, 10:24 PM
The service from these guys is excellent, if they dont have it in stock, they get it, or make it..............

http://www.bandcexpress.co.uk/

I've used them for my last 4 sets of Renthal 789's.

Delivered to my door in Brisbane, quicker and cheaper than ordering them in at my local shop. I'm happy to deal with them again .
Title: Re: 17 Teeth front sprocket
Post by: northern on Monday, 10 July 2017, 07:38 AM
So, finally I have installed 17 tooth front sprocket.
What can I say - I like it. But I did like my 14, before installing smaller sprocket, also :). Bike seems being little bit more sharp, but I totally accept, it may be placebo effect.

Next Saturday, if weather will be OK, I will take a part in drag race, and if my times will be better then last year (best was 11.8 on 1/4mile) then there is a point of using 17 tooth front sprocket.

I find this article: http://www.superstreetbike.com/bigger-rear-sprocket-makes-more-horsepower-mythbusters
According to this, no power gain should be. Even opposite... :( But I assume, power loss is statistical error... If someone have some dyno run examples on any bikes with different sprockets, please share them here.