TODA valve springs allow maximum lift while preventing valve float which can occur under high rpm, high lift conditions. Their specific spring rates prevents damage to TODA camshafts which may occur as a result of using valve springs that are too stiff. Valve springs which are too stiff may also put additional stress on the timing belt.

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.