Super wide drive-position tire The Double Coin FD425 is a super wide, fuel efficient EPA SmartWay-verified drive-position tire. Its low rolling resistance technology and proven tread design delivers long-term performance and a low total cost of ownership. - Fuel-economy Rolling resistance reduced by 10%, saving fuel around 2% to 3%. - Reducing emissions Saving fuel consumption, to reduce carbon dioxide and other greenhouse gases emissions. - Strong traction Tread rubber compound for fine drainage and grip performance which improved outstandingly.