The HTR Z (High Technology Radials-1st generation) is Sumitomo's Ultra High Performance Summer tire developed for the drivers of sports cars, sporty coupes and performance sedans. The HTR Z is designed to be a confident performer on wet and dry surfaces, however like all summer tires, it is not intended to be driven in near-freezing temperatures, through snow or on ice.
The HTR Z features a directional tread pattern that combines angular shoulder blocks, independent intermediate blocks and a continuous center rib to enhance dry road grip and directional stability. Four circumferential grooves efficiently remove water from the contact patch to resist hydroplaning.
The tire's internal structure features two steel belts with spirally wrapped Jointless Nylon Band (JNB) reinforcement to enhance high-speed durability while minimizing weight and improving ride uniformity. The lower sidewall features sidewall stiffeners to enhance steering response and overall handling.
All items will be shipped via Standard Ground Service unless otherwise requested. Many carriers require a physical street address; they will not deliver to a P.O. Box. All freight charges are the customer’s responsibility. Please note that all freight charges quoted are for Standard Ground Service on the price list. We will be happy to quote you charges for other shipping methods. All Items shipped on Friday Next Day Air will be delivered on the following Monday. If you would like Saturday delivery for items shipped on Friday only, please contact us for shipping arrangements. If an item is custom order or on back order, it will ship with the selected shipping service as soon as it is ready. To check if an item is in stock and ready to ship, please call our parts department.
Customers may return new, unused items within 90 days of delivery for a full refund to the original payment method. West Coast Corvette is not responsible for return shipping costs unless it was our error. Please refer to the tables below for return restrictions.
Full refund to original payment method
After 90 Days
10% Restocking fee and store credit
Oversize fees are noted on the product listing. Including but not limited to, wheels, spoilers, splitters, side skirts, any items with initial oversize shipping fees
10% Restocking fee
MGP Calipers, Lloyd mats, Racemesh grills, Speed Lingerie, American Car Craft, Oracle Lighting
Not eligible for return
Used parts, clearance items and parts that have been installed.