The BIREL Sinter brake pads, with dimensions H=52.0mm, L=40.0mm, and thickness 8.0mm, are designed to provide optimal braking performance and enhanced durability for your kart. Compatible with brake calipers RR-I25x4-H16 Poster and RR-I25x2-H3, as well as brake clamps RR-I25x2-H12 Ant, these brake pads ensure powerful and consistent braking. Sold in pairs, they are ideal for demanding karting enthusiasts.