RK Upgrade Kit Suzuki GSX-R1100 WP, WR – 530 Chain Conversion 93-94. Terms and conditions apply. RK OE upgrade chain and sprocket chain and sprocket kits contain a heavier duty RK chain than that supplied as OE on the motorcycle when new. They are supplied with high quality steel sprockets. Sorry, our items are NOT available for pick-up. No additional information at this time. You might also like. Rtech Plastics Plastic Kit/6 13-16 CRF250 450, Rtech R-kitcrf-gf0-517, Neon Yell. Rtech Plastics Lower Fork Guards CR CRF Crfx, N/yell Rtech R-pscr0gf0003. Rtech Plastics Front Number Plate 20-24 Beta White, Rtech R-tbbetbn0021. Rtech Plastics Front Number Plate 20-24 Beta Black, Rtech R-tbbetnr0021.