Metzeler Roadtec Z8 Interact Rear Tyre 180 55 ZR 17 M C 73W (O Spec) Tubeless 82V Commercial Range A fan assisted hydrostatic transmission A fan assisted hydrostatic transmission oil cooler ensures the oils operating temperature remains cooler wider and has a larger area if compared to that of the ROADTEC™ Z8 INTERACT™**• Reduced compound slipage for better wear• Reduced compound stress and overheating• Includes a higher quantity of grooves for more mechanical grip and water drainage• More rubber in contact with the ground for more chemical grip on both dry and wet Riding easiness Their shape and position have been studied to provide mechanical grip at different lean angles and types of riding