The original XTT™ system works much like the suspension system in an automobile, with each Big Bertha® Spike moving independently, adjusting at all times to changing surfaces and slopes. This creates excellent traction and performance throughout the round, whether you’re standing on grass, dirt or sand. This system is available in the XTT™ Precision. Each Big Bertha Spike sits in the yellow XTT™ spike cup to maximize surface contact. The spike’s lightweight, dual-density design also provides increased durability and comfort.

The new XTT ™ system is designed to provide the ultimate stability during the swing. With a spike cup that’s soft on the instep and rigid on the outstep, the Big Bertha® Spike has phenomenal lateral traction and all but eliminates the possibility of slipping during the golf swing. This system is available in the XTT™ Grand Slam.