Spitfire F4 Classic 99D Wheels 50mm M 5/W 7 Trüe Camber is good old

Trüe Camber is good old standard camber

Woven eyelets

Asymmetrical Heelcup: The high sidewalls give support while sidehilling

remove the earpads entirely to reduce weight and maximize cooling

Poplar/Paulownia/Bamboo + Slambacks: Creating a lighter

Spitfire F4 Classic 99D Wheels 50mm M 5/W 7 Trüe Camber is good oldThe Spitfire Formula 4 Classics come in at a 50mm diameter and 99a durometer making it a pro wheel stable for skating street, skate parks and bowls! The Spitfire Formula 4 Classics are built to excel with its signature Formula 4 design. Formula Four Urethane was developed to combine all the desired properties of a performance wheel without sacrificing any one attribute at the expense of another! Features: Diameter: 50mm Durometer: 99a