SUPERSPROX STEALTH REAR SPROCKET 48T KTM SX 125 150 250 350 450 505 525 98-2015 You are purchasing: Supersprox 48 T ooth Orange Stealth Rear Sprocket (11S-KTM-48OG) Suits: KTM 125 SX / 144 SX / 150 SX / 250 SX / 250 SX-F 350 SX-F / 450 SX-F / 505 SX-F / 520 SX / 525 SX Years 1998-2015 Specifications: Inner ring made from high strength Ultra-light 7075-T6 aluminium. Outer tooth ring made from electro-less Nickel-coated carbon steel. The tooth ring is pressed on the inner ring with a 200 tonne machine and 6T9 stainless steel rivets inserted, creating an indestructible forged bond. The only dual material sprocket in the world proven on 600HP street monsters.