EMTintruder Posted January 24, 2015 Share Posted January 24, 2015 I have an 08 and I get head shake if I let go of handle bars when deceleration only I can set my throttle lock and smooth as can be, what is wrong with my bike ? Is it a common problem? Not making a habit of "no hands" but worries me still Link to comment Share on other sites More sharing options...
JakeWright Posted January 24, 2015 Share Posted January 24, 2015 Have you checked your tyre pressures? Have you had a new tyre recently? Could be unbalanced. Maybe at worst it is the steering head bearings, more likely tyre pressures, unbalanced wheel Link to comment Share on other sites More sharing options...
EMTintruder Posted January 24, 2015 Author Share Posted January 24, 2015 I did just get a new rear tire different brand than the front which is more used Link to comment Share on other sites More sharing options...
JakeWright Posted January 24, 2015 Share Posted January 24, 2015 To be honest if it was me I'd get both wheels rebalanced and see if the wobble is still there. Do you use puncture safe as this can cause a balanced wheel to be slightly unbalanced if the incorrect amount has been put in. Link to comment Share on other sites More sharing options...
Member Contributer VFROZ Posted January 24, 2015 Member Contributer Share Posted January 24, 2015 The bike should not be shaking it's head any time. Head bearings could cause it, or wheel bearings. Apart from the fact that you should never let go of both hands at the same time ever. Link to comment Share on other sites More sharing options...
Member Contributer Frogfoot Posted January 24, 2015 Member Contributer Share Posted January 24, 2015 Having two different brands is unlikely to be a factor. If you've just changed the rear, how old is the front? Prehap's its worn unevenly, some tyres do have a tendancy to scallop (the old BT020 fronts were terrible for this), though not so much in the newer models. Link to comment Share on other sites More sharing options...
Beck Posted January 24, 2015 Share Posted January 24, 2015 Along with checking your head bearings for wear and proper adjustment, Check you front tire for bad tread cupping, which in many instances can cause front end head shake..... Link to comment Share on other sites More sharing options...
V4 Rosso Posted January 24, 2015 Share Posted January 24, 2015 My guess would be head bearings. How many miles on your bike, the stock ball bearings usualy don't last more than 25k Link to comment Share on other sites More sharing options...
Member Contributer Cogswell Posted January 24, 2015 Member Contributer Share Posted January 24, 2015 PM sent. Link to comment Share on other sites More sharing options...
Member Contributer KevCarver Posted January 24, 2015 Member Contributer Share Posted January 24, 2015 Head Bearings, or cupped front tire. Link to comment Share on other sites More sharing options...
EMTintruder Posted January 24, 2015 Author Share Posted January 24, 2015 Bike just hit 15 thousand miles and you guys are right the from tire is cupping pretty, the previous owner put some kind of sinko tire on the front I had never heard of this tire, I just put some new conti-motions on the back, they had good reviews and we're the price I needed at the time Link to comment Share on other sites More sharing options...
Member Contributer Rush2112 Posted January 24, 2015 Member Contributer Share Posted January 24, 2015 New front tire should solve your issue... check your head bearing to make sure they are not the cause of the cupping or you'll be back in the same situation again. Link to comment Share on other sites More sharing options...
Member Contributer Lorne Posted January 24, 2015 Member Contributer Share Posted January 24, 2015 http://www.vfrdiscussion.com/forum/index.php/topic/74733-front-end-wobble/page-2#entry890849 Link to comment Share on other sites More sharing options...
Member Contributer sedgett Posted January 24, 2015 Member Contributer Share Posted January 24, 2015 I've had four different generations of VFR, beginning with a '95 and all were susceptible to cupping of the front tire and handling changes which arise from the shape of any new front tire. I have no idea if this is unique to the VFR, but do know that a new set of shoes often made it feel like a brand new bike, and usually long before hitting wear bars on the front tire. Would love to hear from anyone who understands this phenomenon and if it is limited to the VFR. Link to comment Share on other sites More sharing options...
Member Contributer BusyLittleShop Posted January 24, 2015 Member Contributer Share Posted January 24, 2015 DECELERATION SHIMMY You have experienced a deceleration shimmy and it's normal... somebikes may shimmy decelerating through the 45 mph range... keeping yourhands on the bars should arrest most of the front end shimmy... somebikes shimmy more than others and it's no big deal with your hands onthe bars in the critical speed range... your bike should be immune atspeeds above 45 mph...Deceleration shimmy is chiefly the product of non OEM or a worntires... it ain't the product of tire cupping... but low pressuredefeat the tire's corrective efforts... because every bike has thisinstability... it is held in check by damping forces created mainly bythe tire's self-correcting tendencies... STEERING HEAD BEARINGS If you're steering head bearings are loose you'll notice a pronounceclunk during braking... If your steering head bearings are too tight the bike will weave andnot seek it own center... Link to comment Share on other sites More sharing options...
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