The ULTIMATE weighting system for your speedster is back by popular demand!!! 3.7 oz adjustable weight system to find your speedsters SweetSpot! This weight allows your to slide it forward to adjust your center of gravity, rough track or smooth track, this will give your derby racer the highest advantage on the track. Another first brought to you by Jewkes Engineering! SweetSpot 1″ x 1.25″ x 0.283″= 3.7OZ Click on the link below and Check out the Video on the SweetSpot: http://www.youtube.com/watch?v=CojXbQkCaP4 Rise above being just another derby dad … build with the pro’s at Jewkes Engineering and get the “Edge On The Competition!”
