Front end problem.....

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vtrjock
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Location: Turnip land in rural Lincolnshire
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Front end problem.....

Post by vtrjock »

Hi guys,

a few months ago I was experiencing a lot of skittishness at low speed from the front end. I posted a message, got some good info back and dully fitted a set of 207RRs. Bingo...problem solved.

I've just had my wallet...err..bike in for a main dealer full 16k service during which they changed front pads together with chain and sprockets etc and lo and behold..it suddenly feels very unstable at slow speed again.?? When turning into a very slow, tight bend or mini island it feels almost like the front is on top of marbles and the slightest push on the bars would overcook it.This all probably exagerated but thats how it feels.
At walking pace I'm having to costantly correct the steering..a real pain.

The front tyre has the recomended 36psi and the rear 42psi. The tyres are approx 800 miles old from not generally harsh usage.

Prior to chain and sprok replacement I believe it had a "one tooth less" fnt sprocket where they have now gone back to std..something I will change back again soon. Is it possible that with the lower teeth fnt sprocket it enables you to pull second gear at slightly slower speeds enabling use to use that in the real slow stuff as opposed to 1st. Maybe clutching at straws here.
Any advice greatfully accepted :(
cheers
Andy
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firestorm_al
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Post by firestorm_al »

The larger front sprocket will have shortened you wheel base by a gnats ball hair so I doubt that would have something to do with it. More likely is that they have adjusted your head bearings. Sounds similar to how mine was when my head bearings were on their way out.

Al.
Andrew
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Post by Andrew »

Yeah your head bearings have gone, about 40 quid for some new ones.
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vtrjock
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Post by vtrjock »

firestorm_al wrote:The larger front sprocket will have shortened you wheel base by a gnats ball hair so I doubt that would have something to do with it. More likely is that they have adjusted your head bearings. Sounds similar to how mine was when my head bearings were on their way out.

Al.
:D I didn't mean the wheel base Al ! What I meant was that by dropping one tooth on the front might alter the ratios which sometimes in turn, smooths out the across the range gearchange pickup.Letting you pehaps just pull 2nd at very low speed when otherwise you might have to use first.Lurchy buggers that these twins are.
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Swifty
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Post by Swifty »

firestorm_al wrote:... by a gnats ball hair...
Al.
That is hilarious! :D :D
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