Supersprox SPX Stealth 209:49

The crowns: 49 T SUPERSPROX Stealth have a lifespan three times longer than an aluminum crown, without compromising performance. Better than steel! You cannot achieve this level of durability with a steel crown at the same weight. Of course, there are lightweight steel crowns, but they cannot handle the torque. Better than aluminum! Try riding 20,000 miles on a Hayabusa with an aluminum crown or completing the entire Dakar Rally on an aluminum crown. For extreme racing, factory teams rely on SUPERSPROX Stealth crowns. Are rivets strong enough? There is no doubt that rivets are the only way to secure such a high-performance crown. We know how to utilize this technology by forging rivets into the crowns. Since the beginning of production, we have never had a single rivet break. Over the last 20 years, more than 6 million rivets have been used. Drawings and images are non-binding. Technical evaluation only. SUPERSPROX is a world-leading manufacturer of high-performance sprockets and crowns. Supplier to most European motorcycle manufacturers and factory racing teams. With extensive expertise in the motorcycle sector, SUPERSPROX has been producing top-quality racing sprockets since 1959.