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Shimano’s road groupset hierarchy (top to bottom) is: Dura-Ace R9200 (top, $4,500+), Ultegra R8100 (premium, $2,000), 105 R7100 (mid, $1,200), Tiagra R4700 (entry-performance, $700), Sora R3000 (entry, $400), and Claris R2000 (budget, $300). Modern Dura-Ace, Ultegra, and 105 are 12-speed wireless or wired electronic; Tiagra is 10-speed mechanical; Sora is 9-speed; Claris is 8-speed. Below … Read more