
The BLACKBIRD seat foam +15 mm (manufacturer reference 4211) is designed for motocross riders who demand more support and an optimized riding position. Made from closed-cell expanded polyurethane, it does not absorb water and maintains its qualities over time, even in muddy or wet conditions. Developed with the support of top teams from world championships, it fits perfectly onto original seats for a simple, hassle-free replacement.
This foam will suit riders looking to adjust their seating for improved mobility on the bike and enhanced feel between body and machine. Common motorcycle examples: YAMAHA YZ 250 F (2016–2018), YAMAHA YZ 450 F (2017).