Wobble at 90 Mph
#11
08-21-2007, 04:24 PM
RE: Wobble at 90 Mph
ORIGINAL: tremor38
That said it doesn't take much to make this bike oscillateat high speed. You can induce it with a quick right/left snap on the handle bars at freeway speeds.You may have also noticed that if your clutch action is too jerky a higher speeds you can induce the same thing.
That said it doesn't take much to make this bike oscillateat high speed. You can induce it with a quick right/left snap on the handle bars at freeway speeds.You may have also noticed that if your clutch action is too jerky a higher speeds you can induce the same thing.
#12
08-21-2007, 04:58 PM
Join Date: Aug 2007
Location: Phoenix, AZ - But It's A Dry Heat!
Posts: 521
RE: Wobble at 90 Mph
+1 on the vibration near 88 m.p.h. -FLUX! Too funny, now if I could just afford a Mr. Fusion 
[IMG]local://upfiles/6858/B162AAAFB0A64B8A8A5A2F7AA50FB92A.jpg[/IMG]
[IMG]local://upfiles/6858/B162AAAFB0A64B8A8A5A2F7AA50FB92A.jpg[/IMG]
#13
08-21-2007, 05:47 PM
RE: Wobble at 90 Mph
ORIGINAL: MaverickAus
It's a 250 dual purpose bike .............. it is not designed to do that sort of speed.
It's a 250 dual purpose bike .............. it is not designed to do that sort of speed.
#14
08-21-2007, 06:37 PM
Join Date: May 2007
Location: Land of Sun, Sand and Thorns - AZ
Posts: 1,484
RE: Wobble at 90 Mph
I know air pressure plays an important role on those dual purpose tires - On my Dunlop 606's, just 5 psi± is the difference between white-knuckle vibration and a smooth ride (at high speeds). I prefer lower air pressure in them, you get a little more tread on the road, weight distribution and stability.
#15
08-21-2007, 10:55 PM
RE: Wobble at 90 Mph
That wobblemight beyour brain, 'cuz anyone who does 90mph on a stock KLX250 has a few screws loose. I'm clinching my sphincter at 60 if there's a cross wind! My guess is it's a combination of the knobby tires and the aero, the bike just wasn't made to go that fast.
#16
08-22-2007, 01:27 AM
RE: Wobble at 90 Mph
ORIGINAL: tremor38
+1 on the motard fender; they make a difference. That said it doesn't take much to make this bike oscillateat high speed. You can induce it with a quick right/left snap on the handle bars at freeway speeds.You may have also noticed that if your clutch action is too jerky a higher speeds you can induce the same thing. One of the projects on my list is a steering dampner, which I think willlessen that effect. I'll give it a thorough evaluation and post results.
+1 on the motard fender; they make a difference. That said it doesn't take much to make this bike oscillateat high speed. You can induce it with a quick right/left snap on the handle bars at freeway speeds.You may have also noticed that if your clutch action is too jerky a higher speeds you can induce the same thing. One of the projects on my list is a steering dampner, which I think willlessen that effect. I'll give it a thorough evaluation and post results.
#17
08-22-2007, 01:31 AM
RE: Wobble at 90 Mph
Bingo! Give that man a cigar...or maybe some vegemite? You could try extending the forks as far as you can in the triple clamp which would improve straight line stability, but degrade responsiveness, so there isreally not much point to it.
ORIGINAL: MaverickAus
It's a 250 dual purpose bike .............. it is not designed to do that sort of speed.
It's a 250 dual purpose bike .............. it is not designed to do that sort of speed.
#18
08-22-2007, 01:39 AM
RE: Wobble at 90 Mph
ORIGINAL: vtgreen
That wobblemight beyour brain, 'cuz anyone who does 90mph on a stock KLX250 has a few screws loose. I'm clinching my sphincter at 60 if there's a cross wind! My guess is it's a combination of the knobby tires and the aero, the bike just wasn't made to go that fast.
That wobblemight beyour brain, 'cuz anyone who does 90mph on a stock KLX250 has a few screws loose. I'm clinching my sphincter at 60 if there's a cross wind! My guess is it's a combination of the knobby tires and the aero, the bike just wasn't made to go that fast.
#19
08-22-2007, 02:12 AM
RE: Wobble at 90 Mph
Steering stabilizer, motard fender, and a set of street oriented tires with the proper air pressure. That should keep things a little more stable. I have had the wobbles at high speeds also and it is unnerving to say the least! I think the tires are one of the biggest culprits causing the instability. Good luck keeping up with those 18 wheelers, I know they can be a scary on any bike!
#20
08-22-2007, 03:15 AM
RE: Wobble at 90 Mph
ORIGINAL: gerrynolan
Basically, a car passed me and I just caught up to him & blew past him for a split second then slowed back down to 70 & hung there. It was on route 77 North between NC & VA. The trucks do 90 down hill there and They were all around me. I got a tiny bit freaked out but I don't think it makes me crazy. It was actually a fun ride up to my drummers house. I can use Rte 52 to get up there and no trucks, 45 mph speed limit most of the way. Also a very fun ride but I was in a hurry to get back home. It was dark for most of the ride but not when I passed the car. I really like this as more of a street machine. I'm willing to mod it to feel comfy at speeds that keep up to traffic.
Basically, a car passed me and I just caught up to him & blew past him for a split second then slowed back down to 70 & hung there. It was on route 77 North between NC & VA. The trucks do 90 down hill there and They were all around me. I got a tiny bit freaked out but I don't think it makes me crazy. It was actually a fun ride up to my drummers house. I can use Rte 52 to get up there and no trucks, 45 mph speed limit most of the way. Also a very fun ride but I was in a hurry to get back home. It was dark for most of the ride but not when I passed the car. I really like this as more of a street machine. I'm willing to mod it to feel comfy at speeds that keep up to traffic.