{"product_id":"shimano-dura-ace-bb-7700-octalink-bottom-bracket-ita-70mm","title":"Shimano dura-ace bb-7700 octalink bottom bracket","description":"Product Description  The Shimano Dura-Ace BB-7700 bottom bracket has proven itself over decades  The Shimano Dura-Ace BB-7700 is an Octalink bottom bracket with 8-splined interface that has been in service for decades. It fits perfectly with the Dura-Ace Track crank FC-7710. Its cold-forged hollow axle increases rigidity.  Specifications:Application:Track, RoadSeries:Dura-Ace 7700Type:BSA, ITAShell Width:68 mm, 70 mmAxle Length:109.5 mmAxle Type:Octalink (Road)E-Type Compatibility:noChaincase Compatibility:noTechnical Information:Bearings:steelAxle Material:steelBottom Bracket Cup Material:aluminiumCompatibility:Octalink crank arms with eight-speed splines for shorter grooves (Octalink MTB)  Recommended for:  Dura-Ace FC-7710Features:8-splined interface of bottom bracket axle and crankcold forged hollow axle for increased stiffnessdiagonally tapered ribs for permanent load-bearing connection of bottom bracket axle and cranksmaintenance-friendlymore efficient power transferTechnology:Octalink  In Shimano's Octalink system, the bottom bracket and crank are connected by an 8-tooth contact surface. This provides greater rigidity and greater load capacity, especially compared to conventional square systems.  Models:BSA 68x109.5:  Threads:BSAShell Width:68 mmAxle Length:109.5 mmManufacturer Number:I-BB7700B09N  ITA 70x109.5:  Threads:ITAShell Width:70 mmAxle Length:109.5 mmManufacturer Number:I-BB7700I09NContents:1 x Shimano BB-7700 bottom bracketOrder Together:bottom bracket tool TL-UN66 or TL-UN74-S in combination with wrench TL-FC31    Weight:   universal | BSA: 173 g   Manufacturer: Shimano Europe B.V.  High Tech Campus 92  5656 AG Eindhoven  Netherlands  info@shimano-eu.com","brand":"Shimano","offers":[{"title":"Default Title","offer_id":52571999174993,"sku":"4524667007111","price":178.99,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0282\/5299\/5715\/files\/fetch-image_61cecdb2-4aa6-41dd-a30f-4de6853bd5d1.jpg?v=1765881032","url":"https:\/\/fietsaccessoires.nl\/products\/shimano-dura-ace-bb-7700-octalink-bottom-bracket-ita-70mm","provider":"Fietsaccessoires.nl","version":"1.0","type":"link"}