Ducati Monster Forum

powered by:

March 28, 2024, 09:20:34 PM *
Welcome, Guest. Please login or register.

Login with username, password and session length
News: Welcome to the DMF
 
   Home   Help Search Login Register  



Pages: [1]   Go Down
  Print  
Author Topic: Tipping in VERY quickly  (Read 8972 times)
the_Journeyman
Hero Member
*****
Offline Offline

Posts: 9181


Molly & Syreena, the Italian mistresses


« on: August 16, 2013, 09:39:56 AM »

So, on my last ride out, I had a tipping in issue that spooked me a little.  This is after over 25,000 miles on this Monster, and who knows how more many miles between a Suzuki TS185, GS650, GSXR-600, Bandit 600, GS1150ES, Honda Hawk 650, Ducati 900 Supersport.  To say the least, I've got a little riding experience.

So, I was tipping in and it was like the bike suddenly FELL into the turn so quickly it felt like I was suddenly low siding.  This happened on a couple different turns.  The turns were clean, tire pressure (cold, checked pre-ride) on Pilot Powers was 35 rear, 33 front.

Bike setup - Marzoochi non-adjustable forks with Hyperpro springs + shims & 15wt oil, rear is stock Sachs shock with a Hyperpro spring.  Bars are Moose ATV bars on roughly 1" risers.  Fork tops are even with the top of the triple. 

A couple things could be at play.  I've started relaxing my grip & arms some, relying on my legs and back to hold body position.  I've also spent a week with some seriously fast riders and have modified my turning & tipping in points, especially left handers.  The curve in question was a right hander though.  I relaxed, started to tip in and FELL into the turn.  Is this me, the bike, road camber, something else?  I just want to be sure it's just a mental feeling and nothing wrong with the bike.

JM


Logged

Got Torque?
ADULT TRUTHS

10. Bad decisions make good stories.
stopintime
Hero Member
*****
Offline Offline

Posts: 8912


S2R 800 '07


« Reply #1 on: August 16, 2013, 09:53:15 AM »

My vote goes to the "relaxing my grip & arms" factor.

I don't do that often on the street, but on the track it's amazing how much easier it turns with a relaxed inside arm - more than enough to wonder, what the h*** happened there.
Logged

237,000 km/sixteen years - loving it
Blackout
Hero Member
*****
Offline Offline

Posts: 1179



« Reply #2 on: August 16, 2013, 12:37:40 PM »

Are you focused on counter-steering, aka falling into the turns? Sure helps me in the twisties.
Logged

2003 Ducati Monster 800
2005 Triumph Speed Triple 1050
2003 Honda CR250
2008 KTM 990 SuperDuke
Cloner
Nah...I ain't no stinkin'
Hero Member
*****
Offline Offline

Posts: 2078


....because a mind is a terrible thing......


« Reply #3 on: August 16, 2013, 01:27:28 PM »

New tires or old ones?  My tires tend to wear into a "V" profile....worn out on the outsides and relatively unworn in the middles.....and that shape tends to make the bike feel like it's falling into turns as the tires reach the end of their useful lives.

On the bright side, I sell my take-offs to the local "stunta" crowd as there's still plenty of meat for burnouts in the middle and the worn edges give them street cred they can't come by otherwise.   waytogo
Logged

Never appeal to a man's "better nature."  He may not have one.  Invoking his self-interest gives you more leverage.  R.A. Heinlein

'64 Ducati Monza 250
'67 Aermacchi/HD Sprint SS (race bike)
'00 Aprilia RSV Mille
'03 Ducati 800 SS (race bike)
'04 KTM 450 EXC
'08 Kawasaki Ninja 250 (race bike)
Howie
Post Whore
******
Offline Offline

Posts: 16808



« Reply #4 on: August 16, 2013, 07:25:50 PM »

Tires squared off?  More common than Cloner's V.  This can cause a similar situation.
Logged
Raux
Guest
« Reply #5 on: August 16, 2013, 08:02:29 PM »

Tires squared off?  More common than Cloner's V.  This can cause a similar situation.
+1
Logged
HDDUC
New Member
*
Offline Offline

Posts: 8


« Reply #6 on: August 17, 2013, 03:57:13 AM »

+1 on the tires.  I had the same thing.  Look down on the tire from over the handle bars... Look for uneven ware across the tire.  On mine, you could see the uneven ware that caused the bike to drop in the turns.
Logged
the_Journeyman
Hero Member
*****
Offline Offline

Posts: 9181


Molly & Syreena, the Italian mistresses


« Reply #7 on: August 22, 2013, 06:17:40 PM »

Not squared off, most of my mileage is twisty riding, so I tend to wear pretty evenly. 

I am counter steering, had to take a ride to see how I was handling the bike because the counter thing is pretty natural to me.

I'm pretty inclined to agree with Stopintime on the relax.  I've been relaxing my arms and (I think) having better form in turns lately.

JM
Logged

Got Torque?
ADULT TRUTHS

10. Bad decisions make good stories.
bob795
Full Member
***
Offline Offline

Posts: 238



« Reply #8 on: August 24, 2013, 07:01:19 PM »

I would check the bearings in the steering head. 

I had a similar thing happened to me on my Sportster. When I made a turn, the bike felt like it pulled me down. It was quite scarry. Turned out the bearings in the steering head needed some cleaning and needed grease. Once they're cleaned and greased, the problem dissapeared.
Logged

2011 Husqvarna TE 630
2012 Monster 795
2002 Sportster 883/1200 (sold)
Mundman
Jr. Member
**
Offline Offline

Posts: 70



« Reply #9 on: September 15, 2013, 06:22:06 AM »

Yes! Steering head bearings. Had a similar situation and found that the grease in the steering head had gotten gummy. Bearings were fine though
Logged

'12 Ducati 1199 tri
'10 KTM 990 SuperMoto 990
'02 HD Heritage Springer
'94 Honda Nighthawk 250
Assorted Tonka and Corgi vehicles
the_Journeyman
Hero Member
*****
Offline Offline

Posts: 9181


Molly & Syreena, the Italian mistresses


« Reply #10 on: October 01, 2013, 10:30:48 AM »

Well, considering that I'm an all-weather rider and there's nearly 40,000 miles on the steering head bearings, they might need a look.

JM
Logged

Got Torque?
ADULT TRUTHS

10. Bad decisions make good stories.
Pages: [1]   Go Up
  Print  
 
Jump to:  


Powered by MySQL Powered by PHP Powered by SMF 1.1.21 | SMF © 2015, Simple Machines
Simple Audio Video Embedder
Valid XHTML 1.0! Valid CSS!
SimplePortal 2.1.1