{"product_id":"shimano-pulley-set-rdr8000-r8050","title":"Shimano Tension \u0026 Guide Pulley Set Rdr8000\/R8050","description":"\u003cp data-end=\"184\" data-start=\"0\"\u003eThe \u003cstrong data-end=\"62\" data-start=\"4\"\u003eShimano RD-R8000 \/ RD-R8050 Tension \u0026amp; Guide Pulley Set\u003c\/strong\u003e is the OEM jockey wheel replacement kit used on \u003cstrong data-end=\"183\" data-start=\"111\"\u003eUltegra 11-speed mechanical (R8000) and Di2 (R8050) rear derailleurs\u003c\/strong\u003e.\u003c\/p\u003e\r\n\r\n\u003cp data-end=\"223\" data-start=\"186\"\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003eShimano RD-R8000 \/ RD-R8050 Tension \u0026amp; Guide Pulley Set\u003c\/span\u003e\u003c\/p\u003e\r\n\r\n\u003ch2 data-end=\"281\" data-section-id=\"qxmwqz\" data-start=\"267\"\u003eWhat it is\u003c\/h2\u003e\r\n\r\n\u003cp data-end=\"300\" data-start=\"282\"\u003eThis kit includes:\u003c\/p\u003e\r\n\r\n\u003cul data-end=\"382\" data-start=\"301\"\u003e\r\n\t\u003cli data-end=\"340\" data-section-id=\"l8a8qy\" data-start=\"301\"\u003e\u003cstrong data-end=\"340\" data-start=\"303\"\u003eGuide pulley (upper jockey wheel)\u003c\/strong\u003e\u003c\/li\u003e\r\n\t\u003cli data-end=\"382\" data-section-id=\"1tc4lrp\" data-start=\"341\"\u003e\u003cstrong data-end=\"382\" data-start=\"343\"\u003eTension pulley (lower jockey wheel)\u003c\/strong\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp data-end=\"424\" data-start=\"384\"\u003eIt is designed specifically for Shimano:\u003c\/p\u003e\r\n\r\n\u003cul data-end=\"518\" data-start=\"425\"\u003e\r\n\t\u003cli data-end=\"469\" data-section-id=\"1ip12c5\" data-start=\"425\"\u003e\u003cstrong data-end=\"469\" data-start=\"427\"\u003eUltegra RD-R8000 (11-speed mechanical)\u003c\/strong\u003e\u003c\/li\u003e\r\n\t\u003cli data-end=\"518\" data-section-id=\"aqf3ae\" data-start=\"470\"\u003e\u003cstrong data-end=\"518\" data-start=\"472\"\u003eUltegra RD-R8050 (11-speed Di2 electronic)\u003c\/strong\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003chr data-end=\"523\" data-start=\"520\"\u003e\r\n\u003ch2 data-end=\"541\" data-section-id=\"1urilu4\" data-start=\"525\"\u003eWhat it does\u003c\/h2\u003e\r\n\r\n\u003cp data-end=\"603\" data-start=\"542\"\u003eThese two pulleys sit inside the derailleur cage and control:\u003c\/p\u003e\r\n\r\n\u003cul data-end=\"820\" data-start=\"605\"\u003e\r\n\t\u003cli data-end=\"714\" data-section-id=\"achlge\" data-start=\"605\"\u003e\n\u003cstrong data-end=\"629\" data-start=\"607\"\u003eGuide pulley (top)\u003c\/strong\u003e\r\n\r\n\t\u003cul data-end=\"714\" data-start=\"632\"\u003e\r\n\t\t\u003cli data-end=\"676\" data-section-id=\"1gdgwag\" data-start=\"632\"\u003ealigns the chain onto the correct sprocket\u003c\/li\u003e\r\n\t\t\u003cli data-end=\"714\" data-section-id=\"ybkpyf\" data-start=\"679\"\u003eensures precise shifting accuracy\u003c\/li\u003e\r\n\t\u003c\/ul\u003e\r\n\t\u003c\/li\u003e\r\n\t\u003cli data-end=\"820\" data-section-id=\"10xhmqv\" data-start=\"716\"\u003e\n\u003cstrong data-end=\"745\" data-start=\"718\"\u003eTension pulley (bottom)\u003c\/strong\u003e\r\n\t\u003cul data-end=\"820\" data-start=\"748\"\u003e\r\n\t\t\u003cli data-end=\"773\" data-section-id=\"5tvw0b\" data-start=\"748\"\u003emaintains chain tension\u003c\/li\u003e\r\n\t\t\u003cli data-end=\"820\" data-section-id=\"1jxni47\" data-start=\"776\"\u003estabilises drivetrain under pedalling load\u003c\/li\u003e\r\n\t\u003c\/ul\u003e\r\n\t\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp data-end=\"843\" data-start=\"822\"\u003eTogether they ensure:\u003c\/p\u003e\r\n\r\n\u003cul data-end=\"928\" data-start=\"844\"\u003e\r\n\t\u003cli data-end=\"861\" data-section-id=\"p14p6\" data-start=\"844\"\u003esmooth shifting\u003c\/li\u003e\r\n\t\u003cli data-end=\"890\" data-section-id=\"xvu94d\" data-start=\"862\"\u003equiet drivetrain operation\u003c\/li\u003e\r\n\t\u003cli data-end=\"928\" data-section-id=\"1x8157w\" data-start=\"891\"\u003econsistent chain control under load\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003chr data-end=\"933\" data-start=\"930\"\u003e\r\n\u003ch2 data-end=\"964\" data-section-id=\"ipbawf\" data-start=\"935\"\u003eCompatibility (important)\u003c\/h2\u003e\r\n\r\n\u003cp data-end=\"1002\" data-start=\"965\"\u003eThis set is commonly compatible with:\u003c\/p\u003e\r\n\r\n\u003cul data-end=\"1190\" data-start=\"1003\"\u003e\r\n\t\u003cli data-end=\"1032\" data-section-id=\"1nm5va6\" data-start=\"1003\"\u003eRD-R8000 (Ultegra 11-speed)\u003c\/li\u003e\r\n\t\u003cli data-end=\"1066\" data-section-id=\"vst7r8\" data-start=\"1033\"\u003eRD-R8050 (Ultegra Di2 11-speed)\u003c\/li\u003e\r\n\t\u003cli data-end=\"1190\" data-section-id=\"1a8elp\" data-start=\"1067\"\u003eSome related 11-speed Shimano road \/ GRX \/ XT derailleurs depending on cage version\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp data-end=\"1288\" data-start=\"1192\"\u003eBut it is \u003cstrong data-end=\"1250\" data-start=\"1202\"\u003enot compatible with 12-speed Shimano systems\u003c\/strong\u003e (those use different pulley designs).\u003c\/p\u003e\r\n\r\n\u003chr data-end=\"1293\" data-start=\"1290\"\u003e\r\n\u003ch2 data-end=\"1318\" data-section-id=\"ebosfz\" data-start=\"1295\"\u003eKey characteristics\u003c\/h2\u003e\r\n\r\n\u003cul data-end=\"1525\" data-start=\"1319\"\u003e\r\n\t\u003cli data-end=\"1352\" data-section-id=\"fx7bye\" data-start=\"1319\"\u003eOEM Shimano precision machining\u003c\/li\u003e\r\n\t\u003cli data-end=\"1410\" data-section-id=\"3uknyx\" data-start=\"1353\"\u003eDirectional pulley design (must be installed correctly)\u003c\/li\u003e\r\n\t\u003cli data-end=\"1462\" data-section-id=\"e4gca5\" data-start=\"1411\"\u003eUsually sealed bearing design for low maintenance\u003c\/li\u003e\r\n\t\u003cli data-end=\"1525\" data-section-id=\"6e0ihg\" data-start=\"1463\"\u003e11-speed specific tooth profile for correct chain engagement\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003chr data-end=\"1530\" data-start=\"1527\"\u003e\r\n\u003ch2 data-end=\"1551\" data-section-id=\"321yx1\" data-start=\"1532\"\u003eWhen to replace\u003c\/h2\u003e\r\n\r\n\u003cp data-end=\"1591\" data-start=\"1552\"\u003eReplace the pulley set when you notice:\u003c\/p\u003e\r\n\r\n\u003cul data-end=\"1735\" data-start=\"1592\"\u003e\r\n\t\u003cli data-end=\"1630\" data-section-id=\"1qss6pr\" data-start=\"1592\"\u003enoisy drivetrain even after cleaning\u003c\/li\u003e\r\n\t\u003cli data-end=\"1666\" data-section-id=\"1tovep6\" data-start=\"1631\"\u003esluggish or inconsistent shifting\u003c\/li\u003e\r\n\t\u003cli data-end=\"1699\" data-section-id=\"5u6zv8\" data-start=\"1667\"\u003ehooked or shark-fin worn teeth\u003c\/li\u003e\r\n\t\u003cli data-end=\"1735\" data-section-id=\"y39116\" data-start=\"1700\"\u003egritty or rough spinning bearings\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003chr data-end=\"1740\" data-start=\"1737\"\u003e\r\n\u003ch2 data-end=\"1773\" data-section-id=\"1ldftfd\" data-start=\"1742\"\u003eRide impact of worn pulleys\u003c\/h2\u003e\r\n\r\n\u003cp data-end=\"1803\" data-start=\"1774\"\u003eWorn jockey wheels can cause:\u003c\/p\u003e\r\n\r\n\u003cul data-end=\"1919\" data-start=\"1804\"\u003e\r\n\t\u003cli data-end=\"1822\" data-section-id=\"13zwli4\" data-start=\"1804\"\u003edelayed shifting\u003c\/li\u003e\r\n\t\u003cli data-end=\"1847\" data-section-id=\"8f9wz9\" data-start=\"1823\"\u003echain noise under load\u003c\/li\u003e\r\n\t\u003cli data-end=\"1887\" data-section-id=\"yx08o2\" data-start=\"1848\"\u003epoor chain retention on rough terrain\u003c\/li\u003e\r\n\t\u003cli data-end=\"1919\" data-section-id=\"1dk73c6\" data-start=\"1888\"\u003eincreased drivetrain friction\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003chr data-end=\"1924\" data-start=\"1921\"\u003e\r\n\u003ch2 data-end=\"1941\" data-section-id=\"1g6g9c7\" data-start=\"1926\"\u003eBottom line\u003c\/h2\u003e\r\n\r\n\u003cp data-end=\"223\" data-start=\"186\"\u003e \u003c\/p\u003e\r\n\r\n\u003cp data-end=\"2175\" data-start=\"1942\"\u003eThe Shimano RD-R8000 \/ R8050 pulley set is a \u003cstrong data-end=\"2067\" data-start=\"1987\"\u003eprecision OEM replacement part for 11-speed Ultegra road and Di2 drivetrains\u003c\/strong\u003e, restoring smooth shifting, low noise, and correct chain control when your original jockey wheels wear out.\u003c\/p\u003e\r\n\r\n\u003cp data-end=\"223\" data-start=\"186\"\u003e \u003c\/p\u003e\r\n","brand":"Shimano","offers":[{"title":"Default Title","offer_id":44932301258974,"sku":"Y3E998010","price":295.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1242\/8790\/files\/15060_Shimano-RD-R8000-RD-R8050-RD-RX800-RD-RX810-Pulley-Kit-Y3E998010-Pushbikes.jpg?v=1750177730","url":"https:\/\/onlino-bicycle-shopco.shop\/products\/shimano-pulley-set-rdr8000-r8050","provider":"Online Bicycle Shop","version":"1.0","type":"link"}