Wheel wobbly, flexing forks?

[Moo.]

Hey guys, bike developed a wierd problem, when riding along, the front wheel and handle bars shake, making the bike fishtail a bit. Almost like the start of a tank slapper.

With the bike stopped, if i wobble the handlebars, the wheels shake but lag a bit behind it, like a nut somewhere has some loose... anyone shed any light? Cheers guys
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A2 Passed 18/6/10

[neil.]

Wheel bearing failed? Axle nut loose? Yoke pinch bolts loose? Steering bearings loose or failed?

[neatbik]

Sounds like headbearings need adjusting or replacing.

[Moo.]

Cheers guys, im gunna go for head bearings, take a look at them, axle nut, yoke nits and the spindle nuts are good, as is the wheel bearing

If i put it in a different way, holding the front wheel between my legs, i can still wiggle the handlebars.. feels like something is loose somewhere
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A2 Passed 18/6/10

[robocog]

Loose (or snapped/missing) mudguard bolts?
There should be a "brace" that tries to keep the forks doing similar things
I know on my cafe CG, that doesn't yet have the brace nor mudguard, the bars properly move from side to side with the front wheel clamped in place

Regards
Rob
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Needs a bigger garage...

[Ed Case]

It's worth checking if either the top or bottom yokes are cracked, I've had one 'go' on me.