New, Unused Shimano Genuine Parts 21 Ultegra C2000SHG Drag Knob New, Unused Diameter: Approximately 32.5mm Compatible with 1000, C2000, and C2500 models with large-diameter drag knobs from 15 onwards. Also fits 17 Ultegra and 21 Nasci. Shimano retail price: ¥1705 Offered at a lower price than Shimano's, including shipping. Only one available, so act fast. Will be sent in simple packaging. No individual price reductions to ensure fairness. Please confirm compatibility yourself. I have not checked all reels, so I cannot answer questions about compatibility. Please purchase only after confirming the profile and agreeing to the content. Shimano Reel Spinning Reel Parts 17 21 Ultegra 17 21 Soare XR / ci4+ 18 22 Soare BB 17 21 Complex c2500 18 23 Cardiff ci4+ 16 21 Nasci 17 23 Sedona 17 23 Sahara 15 16 19 23 Stradic / ci4 15 20 Twin Power