If you're not used to something as knobbly as a TKC80, then they will feel and appear to do strange things at first. They tend to judder through the brakes, fall into bends and vibrate through the seat bars and pegs at low speeds basically as you roll on and off the tread blocks. A high speed weave at 70+ isn't unheard of either, but depends a great deal on suspension and bike setup. This is one of the reasons I have stopped using them.

They do get significantly better with respect to all the above (except the low speed vibration) as they bed in, maybe after 200-300 miles or so. Also, during that time, you will become accustomed to them as well.

One point of note is that TKCs on the Tenere generally behave better at slightly lower pressures than the handbook states which are geared more road orientated tyres. Everyone's different, but over the years and after many sets I found 28/31 psi (on the road) to be best for an optimum balance of grip, comfort and tyre wear. Also, are you sure the front has been mounted the right way round? They might not look directional, but the they are.

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