Tiagraはなぜ11年間開発が止まったのか？その裏側と、完成車メーカーの視点。

ROCKBIKES TV (Rockbikes TV) This episode covers the sudden announcement of the new road bike component group, R4000 TIAGRA, on March 3, 2026. Although there were rumors that TIAGRA itself would be discontinued, it has now evolved from the old (4700 series) 2x10 speed to a 2x11 speed, a gap currently lacking in Shimano's road bike component lineup. Many of you are probably curious about the new TIAGRA, and based on the currently released information, Nishiyama explains the details of the R4000 TIAGRA from the perspective of a complete bicycle manufacturer. ★The "R4000 TIAGRA Comparison Price List" and "Shimano 2x11 Speed ​​Compatibility Chart" used in this video can be viewed at this link. https://www.rockbikes.jp/secret.html Video: "Why Gravel Culture Isn't Popular in Japan"    • 車両の問題では無かった！ネーミングがもたらす力。   [Table of Contents] 0:00 Opening 4:18 Chapter 1: TIAGRA's Positioning 8:12 Chapter 2: Older 4700 Series 12:57 Chapter 3: Basic Specifications of the New TIAGRA (R4000) 16:36 Chapter 4: The Reality of Pricing 23:52 Chapter 5: Compatibility of the New TIAGRA 28:48 Chapter 6: Positioning with 105 & CUES 30:59 Chapter 7: Strategies of Complete Bike Manufacturers 39:41 Ending 〈About ROCKBIKES TV〉 We want to spread our values ​​regarding what we consider a "cool bike"! With that in mind, the representative of ROCKBIKES himself will help those who aim for "coolness," including not only bicycles but also their users, by sharing maintenance tips, work procedures, product explanations, and our philosophy. ★ROCKBIKES Official Website/Online Store https://www.rockbikes.jp/ ■We've created original "ROCKBIKES TV" stickers! Available now on the ROCKBIKES official website! https://rockbikes.jp/collections/rbor... ▼Our official LINE account has launched! We're distributing a ¥500 off coupon usable at our official online store to everyone who adds us as a friend! https://lin.ee/XsZefeN ▼ROCKBIKES Official Website/Online Store https://www.rockbikes.jp/ ▼Instagram   / rockbikes.official   ▼Twitter   / rockbikes_home   #shimano #シマノ #tiagra #r4000 #newmodel