{"product_id":"chaser-tc4-titanium-udh-direct-mount-derailleur-hanger-shimano-r-series-trek-madone-gen-8-colnago-v5rs-y1rs","title":"Chaser TC4 Titanium UDH Direct Mount Derailleur Hanger | Shimano R-Series | Trek Madone Gen 8, Colnago V5RS \/ Y1RS","description":"\u003cp\u003eFor UDH road frames paired with a Shimano R-series direct-mount rear derailleur, this Chaser hanger combines full-CNC TC4 titanium construction with a streamlined mounting interface. Check the UDH frame standard and Shimano extended interface before selecting the UDH-RD1 version.\u003c\/p\u003e\n\u003ch3\u003eBike Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cp\u003eRoad bike frames using the \u003cstrong\u003eUDH standard\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eExamples include (but are not limited to):\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eTrek Madone Gen 8\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eColnago V5RS\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eColnago Y1RS\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eVan Rysel \/ Quick Pro and other UDH-equipped road bikes\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment Exclusions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cp\u003eOlder Shimano rear derailleurs without extended hanger interface\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eNon-UDH frame designs\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDirect-mount version is not compatible with SRAM or Campagnolo rear derailleurs\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdjustment Spacers (Included)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cp\u003eFine-tuning spacers included (optional installation)\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eSpacer thickness: \u003cstrong\u003e0.1 mm per piece\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFunction:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cp\u003eInstalled between derailleur and hanger\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003ePrevents axial movement of the rear derailleur\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e⚠️ After installing or replacing the hanger, \u003cstrong\u003erear derailleur indexing and alignment must be re-adjusted\u003c\/strong\u003e according to manufacturer specifications.\u003c\/p\u003e\n\u003ch3\u003eWeight Comparison\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cp\u003eTraditional UDH system (reference): approx. \u003cstrong\u003e42.2 g\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eChaser UDH Titanium Direct Mount Hanger (complete set): approx. 33.9 g\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSignificant weight reduction compared to conventional UDH setups.\u003c\/p\u003e\n\u003ch3\u003eMaterial \u0026amp; Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e TC4 Titanium\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eManufacturing:\u003c\/strong\u003e Full CNC machining\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eAxle standard:\u003c\/strong\u003e P1.0 (optional P1.5 nut available)\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eRecommended installation torque:\u003c\/strong\u003e 25 Nm\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eUDH-RD1｜Direct Mount Version (Shimano Only)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cp\u003eCompatible with Shimano R-series rear derailleurs (with extended hanger interface)\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eLightweight direct-mount structure\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eNot compatible with SRAM or Campagnolo rear derailleurs\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Details \u0026amp; Benefits\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eChaser UDH Titanium Direct Mount Derailleur Hanger\u003c\/strong\u003e is developed based on the \u003cstrong\u003eUDH (Universal Derailleur Hanger) standard\u003c\/strong\u003e, designed for high-performance road bikes that demand maximum drivetrain precision with reduced weight.\u003c\/p\u003e\n\u003cp\u003eManufactured from \u003cstrong\u003eaerospace-grade TC4 titanium\u003c\/strong\u003e using full CNC machining, this hanger combines lightweight construction with excellent rigidity and durability. Compared to traditional UDH systems, the optimized direct-mount structure simplifies the drivetrain interface while achieving meaningful weight savings.\u003c\/p\u003e\n\u003cp\u003eThis product is a \u003cstrong\u003edirect-mount UDH solution\u003c\/strong\u003e, specifically intended for \u003cstrong\u003eShimano R-series rear derailleurs with extended mounting interfaces\u003c\/strong\u003e. Compared to a conventional \u003cstrong\u003eUDH + Shimano Link\u003c\/strong\u003e setup, it offers a cleaner structure and lower total system weight.\u003c\/p\u003e","brand":"Chaser","offers":[{"title":"Silver","offer_id":62668687114610,"sku":null,"price":109.99,"currency_code":"USD","in_stock":true},{"title":"Rainbow","offer_id":62668687147378,"sku":null,"price":109.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.tisparts.com\/fr\/products\/chaser-tc4-titanium-udh-direct-mount-derailleur-hanger-shimano-r-series-trek-madone-gen-8-colnago-v5rs-y1rs","provider":"S-PARTS","version":"1.0","type":"link"}