I had a set of BST wheels on a Ducati ST4. The difference between the stock wheels was night and day. For one thing, the improvement in acceleration was noticeable. In this regard, the tendency for the front end to come up was exacerbated, no doubt not only by the lighter wheel up there, but by the improvement in motive force. For another thing, driving down the road at 70 MPH and making a quick steering input, e.g., to avoid something in the road--the effort felt like 35 MPH with the stock wheels. In other words, there was an obvious lessening of force required to move the bars, and bike, from side to side at speed. Braking, though I didn't notice this particular difference so much, had to have been improved as well, with less impetus for the brakes to overcome. Also, though this one is harder to objectify, the bike just 'handled' better. The lessening of the weight in the wheels allows the suspension to react with more alacrity to the road surface. The tires stay planted. There's some downside to this, e.g., a rough road sometimes felt a little rougher, but this latter point was an insignificant effect. The BST's were a lot of money, but they transformed the Duc. Note that word, 'transformed'. In my opinion, in the case of the Ducati, that concept of transformation is not an overstatement. I would expect the BST's to do the same for any bike they were installed on. Now. If they could only get the price down to earth... - alan