Results 1 to 15 of 15

Thread: sprocket gearing

  1. #1
    apriliaforum expert TeddyG's Avatar
    Join Date
    Feb 2012
    Location
    Portland OR
    Posts
    636

    sprocket gearing

    I know this has been discussed before, but what's the opinion of sprocket sizes? I currently have 15/41 and thinking of going up a tooth on the back for better acceleration. Since the stock front is 16, does dropping a tooth cause premature wear on the chain guides?

  2. #2
    apriliaforum Junkie dfoustou's Avatar
    Join Date
    Aug 2014
    Location
    silver spring
    Posts
    358
    yes, it might wear the chain guide. I don't know for sure though. I am using 16 and 17.
    Dionysis

    79 CX500C
    07 RSV1000R
    08 WR250R

    IBA#58777

  3. #3
    apriliaforum expert steelman_2's Avatar
    Join Date
    Sep 2012
    Location
    Finland
    Posts
    908
    The stock gearing is 16/40 and the most cheap upgrade ( and mostly done) to make bike more agressive is 15/42 gearing, I do not like go down with front ( wear / the angle speed of the front sprocket rises) so I've gone with 16/44 ( which is almost the same than 15/42) , then you need also 2 link more on your chain.
    Last edited by steelman_2; 11-04-2017 at 01:34 PM.
    I'm a (triathlo)nist, that's why I've joined A(prilia) & A(udi) club.

  4. #4
    apriliaforum expert Fox Fader's Avatar
    Join Date
    Jun 2006
    Location
    Columbus, GA
    Posts
    5,006
    I was always good with 16-42 on these bikes. I ride the road a lot so a 15-41 or 42 would be too aggressive for me.
    Last edited by Fox Fader; 12-09-2017 at 09:29 AM.
    2007 Tuono 1000R Factory
    Cored OE Racing CansMap2Pazzo Shorty Knock-offs15-40AF1 Link PlatesAprilia Sliders
    Laminar WindscreenLowered PegsLED City and Tag Lights
    ProTaper Universal LowClear Signal Lenses
    2017 High-Ball in Suede Nuclear Sunset Orange
    2017 Z125 PRO

    2001 Futura in Silver - Sold, after 8.5 years of service.

    Retired - DJ, Turntablist, MC, Creator, Video Editor and Mixologist.
    Cored OE Cans vs Leo Vince Titanium Vid
    Slammin' Tunes!

    HF152, 10-26954
    HF564 .024-.028


    Chrome extension to see photobucket blocked pics.

  5. #5
    apriliaforum Junkie dfoustou's Avatar
    Join Date
    Aug 2014
    Location
    silver spring
    Posts
    358
    I like the 16/42 for street riding as well.
    Dionysis

    79 CX500C
    07 RSV1000R
    08 WR250R

    IBA#58777

  6. #6
    apriliaforum expert TeddyG's Avatar
    Join Date
    Feb 2012
    Location
    Portland OR
    Posts
    636
    After some thought, I went w/ 15/42 which seems to give a bit more acceleration, though it will probably wear the chain follower faster. The new chain and sprockets are noticeably smoother- next is to test the rear wheel alignment- any tips on that technique?

  7. #7
    apriliaforum Junkie dfoustou's Avatar
    Join Date
    Aug 2014
    Location
    silver spring
    Posts
    358
    i just measure the position of the rear wheel axle very carefully.
    other options: https://www.youtube.com/watch?v=uDmn-zngFRY
    Dionysis

    79 CX500C
    07 RSV1000R
    08 WR250R

    IBA#58777

  8. #8
    Honest always, feared often Micah / AF1 Racing's Avatar
    Join Date
    Jun 2003
    Location
    37 miles E. of ATX, TX USA.
    Posts
    26,981
    I prefer 16:44 as it seems easiest on the chain guides, they were never really an issue on the Gen1 chassis but on Gen2 chassis they definitely are.
    Diminished expectations is the key to happiness in life.

    Micah Shoemaker
    AF1 Racing
    9900 IH35N
    Austin, TX 78753
    micah@af1racing.com
    @ShoemakerMicah
    @AF1Racingaustin

  9. #9
    apriliaforum expert TeddyG's Avatar
    Join Date
    Feb 2012
    Location
    Portland OR
    Posts
    636
    Thanks for sending that- when I removed the old sprockets, I could see uneven wear on the sides of the rear sprocket ( the inner side was worn more than the outer side), indicating that the rear wheel wasn't aligned properly

    Quote Originally Posted by dfoustou View Post
    i just measure the position of the rear wheel axle very carefully.
    other options: https://www.youtube.com/watch?v=uDmn-zngFRY

  10. #10
    apriliaforum expert jess67's Avatar
    Join Date
    Nov 2011
    Location
    sth oz
    Posts
    1,184
    Quote Originally Posted by TeddyG View Post
    Thanks for sending that- when I removed the old sprockets, I could see uneven wear on the sides of the rear sprocket ( the inner side was worn more than the outer side), indicating that the rear wheel wasn't aligned properly
    Make sure your front sprocket orientation is correct - the collar faces inwards on our bikes

  11. #11
    apriliaforum expert CorseKiwi's Avatar
    Join Date
    Mar 2011
    Location
    New Zealand
    Posts
    636
    Now that I have test ridden with Sefano's twin velocity stacks, open airbox and bazzaz tuning I think I will change from 15/42 to 16/42. The acceleration is noticeably improved!!
    07 RSV 1000 Factory
    03 Ducati ST4s ABS, Lots of mods
    Previous
    05 Ducati 999S,07 Tuono 1000 R, 03 Tuono Racing, 06 Triumph 1050 Speed triple

  12. #12
    apriliaforum expert TeddyG's Avatar
    Join Date
    Feb 2012
    Location
    Portland OR
    Posts
    636
    Thanks- I made a note of that while rwemoving the old sprocket, along with getting new thrust washers. I was surprised the torque setting is only 37 lbs, but another member posted about shearing it off using too much force

    Quote Originally Posted by jess67 View Post
    Make sure your front sprocket orientation is correct - the collar faces inwards on our bikes

  13. #13
    apriliaforum expert mwlehman's Avatar
    Join Date
    Apr 2013
    Location
    cape coral and key west florida usa
    Posts
    561
    it the last 3 week I have gone from a 15/44 to 17/44 to 17/42 to 16/42.... just messing around seeing if gearing and sedated riding style had much affect on gas mileage...not much

    15/44 seemed like I was constantly shifting, 17/42 was just a little to high for around town...leaving 16/42 in for now...my wife has 16/44 on her tuono but I doubt she knows or cares
    Once you have ruined your reputation, you can live quite freely

  14. #14
    apriliaforum Junkie
    Join Date
    Jul 2014
    Location
    Earth
    Posts
    478
    been using 16/42 for almost 2 years and a half.. really love it.. even in town or long travel.. but on the next change will gonna try 16/43 combo.. will see how it goes

  15. #15
    apriliaforum expert jess67's Avatar
    Join Date
    Nov 2011
    Location
    sth oz
    Posts
    1,184
    Quote Originally Posted by CorseKiwi View Post
    Now that I have test ridden with Sefano's twin velocity stacks, open airbox and bazzaz tuning I think I will change from 15/42 to 16/42. The acceleration is noticeably improved!!
    1 tooth on the front sprocket would have to be worth at least 10hp, thats a fair gain.

Similar Threads

  1. RXV motard sprocket gearing
    By soyrico in forum 2006-2011 Aprilia RXV, SXV, MXV 4.5/5.5 V-Twins
    Replies: 1
    Last Post: 07-02-2008, 06:14 AM
  2. sprockets/gearing
    By nopainnogain in forum RS50 Technical
    Replies: 29
    Last Post: 10-28-2007, 08:18 PM
  3. Stock sprocket gearing? 16/42?
    By Jglisso in forum SL1000 Falco Forum (all years)
    Replies: 7
    Last Post: 06-24-2006, 07:23 PM
  4. Sprocket gearing combinations
    By HarmanKardon in forum RSV1000 Mille, Mille R, and Mille SP (1998-2003)
    Replies: 19
    Last Post: 11-30-2005, 12:29 PM
  5. Sprocket Gearing
    By Floyde in forum RSVR and RSVR Factory (2004-2009)
    Replies: 12
    Last Post: 01-27-2005, 05:06 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •