Welcome to NESR! Most features of this site require registration, including replying to threads, sending private messages, starting new threads, and uploading files. Click here to register.

Page 1 of 2 12 LastLast
Results 1 to 25 of 31

Low speed stability?

  1. #1
    beige camry attack mojobreakfast's Avatar
    Join Date
    Aug 2008
    Location
    Salem, MA
    Age
    48
    Posts
    398

    Low speed stability?

    I don't know if this is my imagination or not, and I can't find anything really relevant on Google, so here goes.

    I get the distinct feeling that the low speed stability of my bike has been gradually declining. That is, very low speed, stop and go type traffic stuff where the bike feels more wobbly than when I first got it and also, in low speed corners (turning into parking spaces) the front wheel seems to want to "fall in" more than it used to.

    My bike is minty fresh and runs great otherwise, never dropped, crashed, abused, curbed, wheelied.. absolutely nothing squidly-diddly... showroom mint. The only thing different between when I bought it last year and now, is the bike has 5600 miles and a flat area on the center of the rear tire tread (I slab commute on the bike).

    Just my imagination? Tire wear? Just want to know if there is some secret motorcycle mojo I haven't been clued into yet.

    0 Not allowed! Not allowed!
    no bikes currently

  2. #2
    Banned
    Join Date
    Aug 2001
    Posts
    15,160
    Wirelessly posted (BlackBerry8330/4.5.0.160 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/105)

    Tire pressure or tires.

    0 Not allowed! Not allowed!

  3. #3
    Just Registered Doc's Avatar
    Join Date
    Mar 2006
    Location
    Jericho, VT
    Posts
    19,396

    Re: Low speed stability?

    Quote Originally Posted by Degsy View Post
    Wirelessly posted (BlackBerry8330/4.5.0.160 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/105)

    Tire pressure or tires.


    0 Not allowed! Not allowed!
    "I'd rather ride a slow bike fast than a fast bike slow"
    Bikes: Ducati: 748 (Track) Honda: RC31 (Race/street)/ CRF 110 Mini Moto/ Hawk Endurance Racer Kawasaki: ZXR1200R
    BOMO Instructor
    EX# X

  4. #4
    beige camry attack mojobreakfast's Avatar
    Join Date
    Aug 2008
    Location
    Salem, MA
    Age
    48
    Posts
    398

    Re: Low speed stability?

    I check the pressure pretty often but will look at it in the morning. If it's not the pressure, it could be general tire wear? Are there fairly noticeable handling changes as tires wear, even in ordinary street riding?

    0 Not allowed! Not allowed!
    no bikes currently

  5. #5
    Lifer lrrs313's Avatar
    Join Date
    May 2008
    Location
    Asheville, NC
    Age
    45
    Posts
    1,852

    Re: Low speed stability?

    Quote Originally Posted by mojobreakfast View Post
    I check the pressure pretty often but will look at it in the morning. If it's not the pressure, it could be general tire wear? Are there fairly noticeable handling changes as tires wear, even in ordinary street riding?
    Yes. The "falling into turns" you're feeling is the bike leaning past the flat spot. Not usually really noticeable as the wear occurs, but when you put on a fresh set of tires, you'll notice a big difference.

    0 Not allowed! Not allowed!

  6. #6
    Senior Member palanon's Avatar
    Join Date
    Nov 2008
    Location
    Epsom, New Hampshire
    Posts
    529

    Re: Low speed stability?

    Tires are the first thing. Besides pressure or scalloping, did you change the front to a higher profile tire?

    If none of the above, I'd bet you need to tighten the head bearings.That slotted nut under your top triple.

    0 Not allowed! Not allowed!
    " In the name of the Spedo, the Tach and the Holy Throttle, Amen. "

  7. #7
    Changes come butcher bergs's Avatar
    Join Date
    Jul 2007
    Location
    the humbling river
    Posts
    13,009

    Re: Low speed stability?

    Boston Moto trackdays will help correct any and all tire wear issues.


    0 Not allowed! Not allowed!

  8. #8
    <---- R.I.P. Hauptman's Avatar
    Join Date
    Jun 2008
    Location
    Pepperell, MA
    Age
    39
    Posts
    683

    Re: Low speed stability?

    tire wear fo sho

    0 Not allowed! Not allowed!
    08 SV650s = brokenz

  9. #9
    Beantown Stan's Avatar
    Join Date
    May 2009
    Location
    Needham, MA
    Age
    37
    Posts
    422

    Re: Low speed stability?

    Most likely tire pressure.. It happened to me, I was low in the front pumped it up felt much better.

    0 Not allowed! Not allowed!
    Mike (Stan) Facebook username = MJStanley508
    2006 Suzuki GSXR 600
    Yoshi R-55 Slip-on, PUIG rear hugger, PUIG windscreen, Pazzo levers, 6k HID kit

  10. #10
    The NEW hot Setup Manny's Avatar
    Join Date
    Nov 2004
    Location
    Boston, MA
    Posts
    4,032

    Re: Low speed stability?

    Dont go slow.

    0 Not allowed! Not allowed!
    EVERYTHING is a repost
    06 749R #0047
    08 R 1200 GSA
    13 Monster EVO 1100

  11. #11
    Lifer akira700's Avatar
    Join Date
    Apr 2005
    Location
    in the city
    Posts
    1,675

    Re: Low speed stability?

    Quote Originally Posted by Manny View Post
    Dont go slow.
    Good one!

    0 Not allowed! Not allowed!
    2008 Honda CBR 600RR

  12. #12
    beige camry attack mojobreakfast's Avatar
    Join Date
    Aug 2008
    Location
    Salem, MA
    Age
    48
    Posts
    398

    Re: Low speed stability?

    Quote Originally Posted by lrrs313 View Post
    Yes. The "falling into turns" you're feeling is the bike leaning past the flat spot. Not usually really noticeable as the wear occurs, but when you put on a fresh set of tires, you'll notice a big difference.
    Cool. Thanks. I was hoping to milk the tires a little while longer, especially since I'm not a particularly hard rider, mostly a commuter and weekend leisure rides. But this stability issue is disconcerting enough to probably change them out at this point.

    To answer the other questions.. tires have never been changed out, they are factory. And, as much as I would like to not have to go slow, sometimes reality intervenes.

    Track days.. next year. Still learning (and broke).

    0 Not allowed! Not allowed!
    Last edited by mojobreakfast; 08-11-09 at 09:07 PM.
    no bikes currently

  13. #13
    Unsafe At Any Speeds Jim's Avatar
    Join Date
    Aug 2007
    Location
    :lurk:
    Posts
    12,509

    Re: Low speed stability?

    wouldnt be anything with the stock damper, right?

    0 Not allowed! Not allowed!
    EX 105
    Sponsors: Motul, Michelin, K&N, Woodcraft

  14. #14
    Jack Wagon hefdukes23's Avatar
    Join Date
    May 2009
    Location
    Portland, ME
    Posts
    180

    Re: Low speed stability?

    Quote Originally Posted by Manny View Post
    Dont go slow.

    0 Not allowed! Not allowed!
    "When in doubt - gas it. It'll either fix the problem or end the suspense!"


    07 Triumph Daytona 675
    04 Suzuki GSX-R 600

  15. #15
    beige camry attack mojobreakfast's Avatar
    Join Date
    Aug 2008
    Location
    Salem, MA
    Age
    48
    Posts
    398

    Re: Low speed stability?

    Quote Originally Posted by DBKromz View Post
    wouldnt be anything with the stock damper, right?
    Interesting thought, and makes me kind of neurotic because come to think of it the twitchy low speed handling does remind me somewhat of my first bike, which did not have one - though on the Honda there is a lamp on the instrument cluster that is supposed to illuminate if there is a problem with it, but all seems fine.

    I was also under the impression that the action of the system is progressive and dependent on input from speed sensor(s) (or the ECU - engine speed?), therefore normally it would not really be a factor in low speed stability. Could be wrong on that though. I'll keep it in mind but first thing I'm going to look at is tire pressure.

    It's not bad enough to be a critical situation, but being a relatively new rider thought it was interesting and probably something worth researching and learning about. I'm hoping its just the tires.

    0 Not allowed! Not allowed!
    no bikes currently

  16. #16
    Changes come butcher bergs's Avatar
    Join Date
    Jul 2007
    Location
    the humbling river
    Posts
    13,009

    Re: Low speed stability?

    Jim is so cute when he's trying to play mechanic.


    0 Not allowed! Not allowed!

  17. #17
    Banned
    Join Date
    Aug 2001
    Posts
    15,160
    Wirelessly posted (BlackBerry8330/4.5.0.160 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/105)

    Quote Originally Posted by DBKromz
    wouldnt be anything with the stock damper, right?
    Sweet jesus save us

    0 Not allowed! Not allowed!

  18. #18
    Lifer DaSarge's Avatar
    Join Date
    Oct 2002
    Location
    Cape Cod
    Age
    37
    Posts
    2,380

    Re: Low speed stability?

    Quote Originally Posted by Degsy View Post
    Wirelessly posted (BlackBerry8330/4.5.0.160 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/105)



    Sweet jesus save us

    0 Not allowed! Not allowed!
    http://www.nestreetriders.com/forum/signaturepics/sigpic306_2.gif

  19. #19
    I Void Warranties LowSider's Avatar
    Join Date
    Jul 2005
    Location
    MA
    Age
    34
    Posts
    1,022

    Re: Low speed stability?

    Quote Originally Posted by palanon View Post
    Tires are the first thing. Besides pressure or scalloping, did you change the front to a higher profile tire?

    If none of the above, I'd bet you need to tighten the head bearings.That slotted nut under your top triple.
    That's what my mind went to. In 5k miles on a new bike the bearings could have became a little loose. When you install new bearings you want to double check they did not loosen after a short period of time- they usually do. That will make the bars want to fall to the steering stops at low speeds.

    You can check this by raising the front end (not with a front stand- you do not want the tripple tree to have any resistance) and see how easily the bars move from steering stop to stop. If you let go of the bars and it falls to one side and bounces off the stop, it is too loose. You want it to just fall on the stop and not bounce.

    0 Not allowed! Not allowed!

  20. #20
    Lifer
    Join Date
    Dec 2003
    Location
    Ma
    Posts
    10,687

    Re: Low speed stability?



    Too many 'cooks'....

    0 Not allowed! Not allowed!
    It's all water under the bridge, and we do enter the next round-robin. Am I wrong?

  21. #21
    Just Registered The Crashing Tomato's Avatar
    Join Date
    Sep 2006
    Location
    Around the corner
    Age
    51
    Posts
    2,068

    Re: Low speed stability?

    Doood your bike is junk and unfixable. sell it to me cheap and buy something that will not break down so quickly like a TANK wit steel tracks. you could commute for 100's of years on those babies.

    0 Not allowed! Not allowed!
    ---------------------------------------------------
    Originally Posted by hammadown .....
    The rule is:
    If even Zip Tie Alley says, "no you shouldn't use a zip tie on that" you REALLLLLLY shouldn't use a zip tie on that! lol

  22. #22
    Lifer Wishbone's Avatar
    Join Date
    Jul 2006
    Location
    Worcester
    Age
    41
    Posts
    3,679

    Re: Low speed stability?

    Quote Originally Posted by hessogood View Post


    Too many 'cooks'....
    To many people preparing lunch will affect my low speed handling?

    ...go on

    0 Not allowed! Not allowed!
    ~ Life passes most people by while they're busy making grand plans for it.~

  23. #23
    Super Moderator OreoGaborio's Avatar
    Join Date
    May 2004
    Location
    MA
    Age
    44
    Posts
    38,893
    Wirelessly posted (Samsung Lube.... Er, Glyde: Mozilla/5.0 440x240 Samsung SCH-U940 NetFront/3.4)

    Quote Originally Posted by Wishbone
    Quote Originally Posted by hessogood View Post


    Too many 'cooks'....
    To many people preparing lunch will affect my low speed handling?

    ...go on
    Not enough waitresses.

    0 Not allowed! Not allowed!
    -Pete LRRS/CCS #81 - ECK Racing, TonysTrackDays
    GMD Computrack Boston | Pine Motorparts/PBE Specialists | Phoenix Graphics | Woodcraft | MTag-Pirelli | OnTrack Media

    The Garage: '03 Tuono | '06 SV650

  24. #24
    Just Registered The Crashing Tomato's Avatar
    Join Date
    Sep 2006
    Location
    Around the corner
    Age
    51
    Posts
    2,068

    Re: Low speed stability?

    orrrrr Sammiches ... gonna get me a sammich now

    0 Not allowed! Not allowed!
    ---------------------------------------------------
    Originally Posted by hammadown .....
    The rule is:
    If even Zip Tie Alley says, "no you shouldn't use a zip tie on that" you REALLLLLLY shouldn't use a zip tie on that! lol

  25. #25
    Lifer Wishbone's Avatar
    Join Date
    Jul 2006
    Location
    Worcester
    Age
    41
    Posts
    3,679

    Re: Low speed stability?

    Quote Originally Posted by OreoGaborio View Post
    Wirelessly posted (Samsung Lube.... Er, Glyde: Mozilla/5.0 440x240 Samsung SCH-U940 NetFront/3.4)



    Not enough waitresses.
    Quote Originally Posted by The Crashing Tomato View Post
    orrrrr Sammiches ... gonna get me a sammich now
    I might be on the right track. But I had cheerios for breakfast. Will this affect my high speed handling?

    0 Not allowed! Not allowed!
    ~ Life passes most people by while they're busy making grand plans for it.~

Page 1 of 2 12 LastLast

Similar Threads

  1. Mandated ABS and stability control for all motorcycles
    By oVTo in forum General Bike Related
    Replies: 24
    Last Post: 09-18-18, 08:00 AM
  2. Stability Issue on Ducati Multistrada
    By NHBusa in forum General Bike Related
    Replies: 22
    Last Post: 08-05-18, 08:52 AM
  3. Did Speed do something right??
    By BMFR6 in forum Pit Area
    Replies: 17
    Last Post: 02-20-09, 11:30 AM

Posting Permissions

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