Innova Star (Swirly) Thunderbird Calvin Heimburg Tour Series 2025

The Innova Thunderbird. For Calvin Heimburg, it’s the perfect blend of speed, control, and dependability. The [9|5|0|2] Thunderbird is a mix of the two most iconic drivers of all time. It boasts the fast [9] speed wing and high-speed stability of the ever-predictable Firebird, with the generous [5] glide and big distance potential of the record-breaking Teebird. All three models share the same stingy [0] turn, but the Thunderbird’s [2] fade lets it stay straighter, longer, before its strong, faithful hook slides it back towards the target.

Calvin capitalizes on these winning flight numbers by punching hard through the air, cruising straight a long way, while still enjoying the reliable fade you expect in a Thunderbird. It has more than enough torque resistance to handle Calvin’s massive snap, yet glidey enough to get almost as far as his biggest distance drivers. If he does sacrifice a few feet over a faster disc, he more than makes up for it in placement and control. Calvin requested that this year’s Thunderbird be similar to his favorite early Tour Series runs: flatish, scoring machines, with enough beef to handle the pro-style heat, backhand or forehand.

Each disc is swirly and unique, yet all of them are grippy and gorgeous. We think you’ll like them. Add some spark to your game with the best of both worlds. Introducing the all-new 2025 Calvin Heimburg Tour Series Star Thunderbird.