spartanadv
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Post by spartanadv on Dec 26, 2016 23:12:07 GMT -7
I noticed my front end shaking a bit at 117 mph today. I was in full tuck but I did have a backpack on. Could this be a suspension adjustment?
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dirtyharry
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Post by dirtyharry on Jan 7, 2017 21:22:16 GMT -7
Hey spartanadv! I can tell you that I've had mine up to around 120 mph and it was smooth as glass. You have the electronic steering stabilizer. I would look at the tire to make sure it isn't out of round or maybe you through a wheel weight. I'm guessing since I haven't had that problem! Good luck
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spartanadv
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Post by spartanadv on Jan 7, 2017 21:37:27 GMT -7
Hey spartanadv! I can tell you that I've had mine up to around 120 mph and it was smooth as glass. You have the electronic steering stabilizer. I would look at the tire to make sure it isn't out of round or maybe you through a wheel weight. I'm guessing since I haven't had that problem! Good luck Thank you for your input! I'm guessing it has to do with my backpack I wear. It's a military pack and oddly shaped when it's full. Since I made that post, I lightened my pack and it seems to have helped. I'm looking into investing in a no-drag pack now. I can't wait for some good weather to go ride in. |
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dirtyharry
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Post by dirtyharry on Jan 7, 2017 21:41:07 GMT -7
Cool! I'm glad you figured it out. I would've thought that a backpack would cause that so I've learned something new. Stay safe
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spartanadv
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Post by spartanadv on Jan 21, 2017 10:01:24 GMT -7
Went riding yesterday without my pack on. Still getting headshake starting at 114-118. It's under hard acceleration so I'm curious if it's my suspension or my technique. All these runs are straight line runs. I usually tuck, pull elbows in tight, but I'm thinking I'm pulling too hard on the bars. The tires were already warmed up proper. I don't have a clue on how to set up my suspension but it does seem extremely stiff. I hit something on the interstate yesterday while doing a head check, my rear wheel hit so hard it felt like it came off the road, and I was convinced the rim was destroyed. All looks fine and I kept riding. I also hit a bump and the shock knocked some of the breath out of me.
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guywithfz10
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Head shake
Jan 21, 2017 11:12:20 GMT -7
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Post by guywithfz10 on Jan 21, 2017 11:12:20 GMT -7
Went riding yesterday without my pack on. Still getting headshake starting at 114-118. It's under hard acceleration so I'm curious if it's my suspension or my technique. All these runs are straight line runs. I usually tuck, pull elbows in tight, but I'm thinking I'm pulling too hard on the bars. The tires were already warmed up proper. I don't have a clue on how to set up my suspension but it does seem extremely stiff. I hit something on the interstate yesterday while doing a head check, my rear wheel hit so hard it felt like it came off the road, and I was convinced the rim was destroyed. All looks fine and I kept riding. I also hit a bump and the shock knocked some of the breath out of me. Steering bearings maybe? I'm not very good with all the mechanical stuff either but I have seen people give this suggestion to similar sounding problems before. |
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spartanadv
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Post by spartanadv on Jan 21, 2017 14:35:06 GMT -7
Went riding yesterday without my pack on. Still getting headshake starting at 114-118. It's under hard acceleration so I'm curious if it's my suspension or my technique. All these runs are straight line runs. I usually tuck, pull elbows in tight, but I'm thinking I'm pulling too hard on the bars. The tires were already warmed up proper. I don't have a clue on how to set up my suspension but it does seem extremely stiff. I hit something on the interstate yesterday while doing a head check, my rear wheel hit so hard it felt like it came off the road, and I was convinced the rim was destroyed. All looks fine and I kept riding. I also hit a bump and the shock knocked some of the breath out of me. Steering bearings maybe? I'm not very good with all the mechanical stuff either but I have seen people give this suggestion to similar sounding problems before. At just under 1400 miles, I'd hope it wouldn't be that. |
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jay9553
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Post by jay9553 on Feb 11, 2017 14:15:42 GMT -7
I get headshake all the time. there's less weight in front on up right bike like fz10 and it's even worse when you are WOT.
I'd think it's normal unless you are talking about tank slapper.
One thing you can do is find a reputable local suspension guy and get the suspension tuned for your weight.
I suggest you to start with setting correct sag for now.
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Post by evitzee on Feb 11, 2017 14:39:44 GMT -7
I've been up to 120 mph and it is smooth as silk, no vibration or movement of the bars. You may be holding on too tight and your stiffness is amplifying the small natural pertubations of the wheel, fork, bar system. We have an electronic steering damper but I haven't read anything on how it exactly works or its effectiveness. Try relaxing a bit, if you can't do that than you shouldn't be flying along at a speed that makes you uncomfortable. Your wheel/tire could be a bit out of balance but I suspect it is your technique.
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jay9553
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Post by jay9553 on Feb 11, 2017 15:33:21 GMT -7
it really depends on how agressively you are accelerating. Are you still on full gas at 120 or are you maintaining throttle?
On fz10, if you full throttle it, you are basically fighting the front wheel from lifting until end of 4th gear.
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Post by 0002s on Feb 11, 2017 16:16:26 GMT -7
If your rear shock is set wrong it will cause your front to wander under acceleration at speed. Have you had your suspension tuned for your weight?
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spartanadv
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Post by spartanadv on Feb 12, 2017 11:22:20 GMT -7
I get headshake all the time. there's less weight in front on up right bike like fz10 and it's even worse when you are WOT. I'd think it's normal unless you are talking about tank slapper. One thing you can do is find a reputable local suspension guy and get the suspension tuned for your weight. I suggest you to start with setting correct sag for now. Funny you say that. I came to that same conclusion the other day and I am going to see a reputable suspension guy possibly this coming weekend. I also realized a portion of the head shake had to do with my form while twisting the throttle. I was in full tuck and lightly twisting the throttle the other day and took it to 122 with no issue. My death grip and hard full-fisted throttle twist seems to add to the issue with the suspension issue causing the head shake to be worse. |
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Post by 0002s on Feb 12, 2017 11:35:52 GMT -7
Once the rear squat/front dip is set for your weight the whole ride experience will change.
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spartanadv
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Post by spartanadv on Feb 12, 2017 11:42:08 GMT -7
Once the rear squat/front dip is set for your weight the whole ride experience will change. I look forward to that. Sport bikes are a new world for me. The slightest adjustment makes a huge change. I had the front wheel re-balanced and lowered to tire pressure to 34 front and 36 rear. Made a massive difference! Went from feeling sketchy at 65-70 to cruising at 85. I could only imagine what it will feel like once I have the suspension adjusted this coming weekend. |
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Post by deftone on Feb 12, 2017 16:41:21 GMT -7
Funny you say that. I came to that same conclusion the other day and I am going to see a reputable suspension guy possibly this coming weekend. I also realized a portion of the head shake had to do with my form while twisting the throttle. I was in full tuck and lightly twisting the throttle the other day and took it to 122 with no issue. My death grip and hard full-fisted throttle twist seems to add to the issue with the suspension issue causing the head shake to be worse. You won't regret it. Dec 26, 2016 22:12:07 GMT -8 spartanadv said: I noticed my front end shaking a bit at 117 mph today. I was in full tuck but I did have a backpack on. Could this be a suspension adjustment? I lost a Helmet out of a back pack at full tuck once. The zippers were together at the top, must have got air flow right inside and opened it up. I felt it get light on my back for a split second and I saw the helmet in the mirror go flying straight up. I didn't even bother slowing down.  Ever since it's been zippers to one side or the other.  |
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spartanadv
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Post by spartanadv on Feb 13, 2017 17:19:34 GMT -7
Funny you say that. I came to that same conclusion the other day and I am going to see a reputable suspension guy possibly this coming weekend. I also realized a portion of the head shake had to do with my form while twisting the throttle. I was in full tuck and lightly twisting the throttle the other day and took it to 122 with no issue. My death grip and hard full-fisted throttle twist seems to add to the issue with the suspension issue causing the head shake to be worse. You won't regret it. Dec 26, 2016 22:12:07 GMT -8 spartanadv said: I noticed my front end shaking a bit at 117 mph today. I was in full tuck but I did have a backpack on. Could this be a suspension adjustment? I lost a Helmet out of a back pack at full tuck once. The zippers were together at the top, must have got air flow right inside and opened it up. I felt it get light on my back for a split second and I saw the helmet in the mirror go flying straight up. I didn't even bother slowing down. Ever since it's been zippers to one side or the other. That is a funny story and great tip! I'll be doing that from now on. |
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510dan
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Post by 510dan on Feb 27, 2018 19:21:04 GMT -7
Headshake is usually caused by not having enough load on the front tire. Reducing fork preload, so as to increase sag often helps. If this is the cause and you correct it, you'll find the front feels more planted and tracks high speed sweepers with less drift.
Having too much shock sag can cause it too.
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ossapioneer
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Post by ossapioneer on Mar 25, 2018 22:45:31 GMT -7
Funny you say that. I came to that same conclusion the other day and I am going to see a reputable suspension guy possibly this coming weekend. I also realized a portion of the head shake had to do with my form while twisting the throttle. I was in full tuck and lightly twisting the throttle the other day and took it to 122 with no issue. My death grip and hard full-fisted throttle twist seems to add to the issue with the suspension issue causing the head shake to be worse. You won't regret it. Dec 26, 2016 22:12:07 GMT -8 spartanadv said: I noticed my front end shaking a bit at 117 mph today. I was in full tuck but I did have a backpack on. Could this be a suspension adjustment? I lost a Helmet out of a back pack at full tuck once. The zippers were together at the top, must have got air flow right inside and opened it up. I felt it get light on my back for a split second and I saw the helmet in the mirror go flying straight up. I didn't even bother slowing down. Ever since it's been zippers to one side or the other. Wow, deftone, that is an amazing story. Don't know whether to LOL or cry. To be honest, I might LOL. And indeed, no point in even bothering to slow down. At road speed, once that thing is gone it's gone. OSSA Pioneer |
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ossapioneer
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Post by ossapioneer on Mar 25, 2018 23:15:40 GMT -7
I noticed my front end shaking a bit at 117 mph today. I was in full tuck but I did have a backpack on. Could this be a suspension adjustment? spartanadv, It would be interesting to hear whether you were able to visit the suspension tuner and if a tuner did work on the bike, what they said about the problem, what they changed up, and whether those steps seemed to help resolve the headshake. OSSA Pioneer |
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