{"product_id":"bb-r9100","title":"BB-R9100 (DURA-ACE)","description":"\u003ch3 class=\"list_anchor_cs_h3\"\u003eSHIMANO BB-R9100 (DURA-ACE) | Bottom Bracket for Hollowtech II with Refined Rotation Performance\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eAlthough it's an unseen part, it greatly affects the quality of your ride.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe SHIMANO DURA-ACE grade \"BB-R9100\" is a threaded type bottom bracket compatible with Hollowtech II cranks.\u003c\/p\u003e\n\u003cp\u003eIt achieves weight reduction by adopting smaller ball bearings, while also delivering DURA-ACE-level high-precision rotation performance. Furthermore, an improved seal structure reduces resistance while maintaining excellent durability.\u003c\/p\u003e\n\u003cp\u003eIn addition to a smooth rotation feel when pedaling, it offers high reliability for long rides and race scenarios. This high-grade bottom bracket is recommended for riders who want to maximize their crank's performance.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 class=\"list_anchor_cs_h3\"\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003eDURA-ACE grade Hollowtech II compatible bottom bracket\u003c\/li\u003e\n\n\u003cli\u003eCompatible with threaded frame types\u003c\/li\u003e\n\n\u003cli\u003eLightweight design achieved by using small-diameter ball bearings\u003c\/li\u003e\n\n\u003cli\u003eSmooth rotation performance due to high-precision bearings\u003c\/li\u003e\n\n\u003cli\u003eImproved seal structure ensures excellent durability\u003c\/li\u003e\n\n\u003cli\u003eLight pedaling feel with reduced rotational resistance\u003c\/li\u003e\n\n\u003cli\u003eSuitable for a wide range of uses, from road racing to long rides\u003c\/li\u003e\n\n\u003cli\u003eCompatible with Hollowtech II cranks such as DURA-ACE, ULTEGRA, and 105\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 class=\"list_anchor_cs_h3\"\u003eSPECIFICATIONS\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003eSeries: DURA-ACE R9100\u003c\/li\u003e\n\n\u003cli\u003eModel: BB-R9100\u003c\/li\u003e\n\n\u003cli\u003eCompatible Crank: SHIMANO HOLLOWTECH II\u003c\/li\u003e\n\n\u003cli\u003eType: Threaded Bottom Bracket\u003c\/li\u003e\n\n\u003cli\u003eCompatible Shell Width: 68mm \/ 70mm\u003c\/li\u003e\n\n\u003cli\u003eBearings: Small-diameter ball bearings\u003c\/li\u003e\n\n\u003cli\u003eAverage Weight: Approx. 65g\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eWhile the bottom bracket is a subtle component, it significantly impacts rotation performance and feel.\u003c\/p\u003e\n\u003cp\u003eThe BB-R9100 offers incredibly smooth rotation, a difference that becomes particularly noticeable during prolonged pedaling. It's a perfect match for DURA-ACE cranks, and also highly compatible with ULTEGRA and 105 Hollowtech II cranks.\u003c\/p\u003e\n\u003cp\u003eGiven its high durability and the fact that it's not a part you replace frequently, it's recommended for those who want to choose a high-quality option.\u003c\/p\u003e\n\u003cp\u003eThis bottom bracket is ideal for riders who want to improve the quality of their ride feel, not just reduce weight.\u003c\/p\u003e","brand":"SHIMANO","offers":[{"title":"68mm (BSA) \/ In-store stock","offer_id":50122313662739,"sku":"4524667858614","price":5699.0,"currency_code":"JPY","in_stock":false},{"title":"68mm (BSA) \/ Order from manufacturer (approx. 10 days)","offer_id":50122313728275,"sku":"oty-4524667858614","price":5699.0,"currency_code":"JPY","in_stock":true},{"title":"70mm (Italian Thread) \/ In-store stock","offer_id":50122313695507,"sku":"4524667858607","price":5699.0,"currency_code":"JPY","in_stock":false},{"title":"70mm (Italian Thread) \/ Order from manufacturer (approx. 10 days)","offer_id":50122313761043,"sku":"oty-4524667858607","price":5699.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/4237\/2883\/files\/BB-R9100.jpg?v=1732607732","url":"https:\/\/store-eirin-jp.com\/en\/products\/bb-r9100","provider":"京都の自転車屋 CYCLE SHOP eirin ＆ サイクルハテナ","version":"1.0","type":"link"}