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Re: Strange front section vibrations

Its quite common on sidecar outfits, a steering damper is the cure, for more modern machines without a built in damper an external one can be fitted.

Something like this one on ebay but I suspect you can get one cheaper.

Rob

https://www.ebay.co.uk/itm/Motorcycle-sidecar-universal-steering-damper-outfit-wobble-vibration-handling/273245582805?hash=item3f9eb4b5d5:g:7gAAAOSwQPtaxIU-

email (option): robmiller11(a)yahoo.co.uk

Re: Strange front section vibrations

Vibrations from an out of balance wheel/tire does usually not go away with an increase in speed. I'd go with the suggested steering damper, but I know doodley squat about sidecars.

/simon

Re: Strange front section vibrations

It's to do with the drag from the undriven sidecar wheel, as the bike accelerates, the sidecar pulls toward the kerb (due to friction on the wheel) and the rider tends to over steer in the opposite direction creating a wobble. Most European bikes up to the 60's had a friction damper in the middle of the forks and screwing down the damper reduces the tendency to oversteer and thus reduce the wobble. Once the machine has accelerated past this point and the sidecars foreward momentum matches the bike, the wobble stops......

email (option): stinkypete80@hotmail.com

Re: Strange front section vibrations

might be a loose/dry/worn steering head...

email (option): cas.vanderwoude@gmail.com

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