-The need for increased performance has lead TODA RACING to design a single progressive coil spring to replace the STD double valve springs. As well as allowing valve lifts of up to 2.5mm, the material and the coil springs natural frequency have all been optimized.
-Egg shaped springs are used to achieve the required high lifts safely.
-Can be used up to 12.5 mm of lift.EGG-SHAPED SECTION springs are used to achieve the high lifts required safely. Lift 12.5mm Max. Variable pitch spring. Compared to conventional designs, The Egg Shape Valve Spring design allows 20% more valve lift with a 15% reduction in weight.