Air-Lake "Trigger Wheel" advances the stock Valkyrie timing by 6 degrees. We have seen a HP gain of 3.5 HP by adding this mechanical device. The end result is more HP and better gas mileage. 

Installation is just a matter of removing the timing dust cover, and then loosening the tension on the front belt and pulling the first center pulley off. Then you just replace the stock trigger device with the new 6 degree advance trigger, making sure that the "out" is pointing out, and reassemble. The whole thing should take less than an hour. This is the cheapest hp add- on's that we have seen to date!

Trigger Wheel is laser cut to precision measurements, then plated to match stock finish.