Because i didnīt know where to put it i bough the Under Servo weight. Now as i realized it could do with some more weight i wen to my local tyre shop (1:1) and asked them for some weights for the Aluminium rims: now i have about 30 weights at home in shades of 5 or 10 grams from 5 to 60 grams! Might be worth asking, i got them all for FREE