Help - Stiff steering VC advice pleeeease

[Diamond Hell]

New set of rubber all round if your tyres are different brands, or worn differently - this will wind up your transmission terribly if they're different sizes!

Swap out your oil pressure sensors for new ones on the engine, change the oil and filter and see if that doesn't shut the buzzer up.

And welcome to Syncronauts.

[HarryMann]

... and measure around the middle of front and rear tyres, the circumference. Tell us what you find, and we should be able to say whether its this that's pushing the VC into self-locking on a run.
As Thomas says, you'll need better matched tyres to start with anyway, whether you need a new VC or not.

[HarryMann]

Be interesting to know the difference though, but a slight pain to go do...