{"product_id":"saddle-clamp-34-9mm-alloy-qr","title":"Speed Saddle Clamp 34.9Mm Alloy Qr","description":"\u003ch2 data-end=\"203\" data-section-id=\"gx67ak\" data-start=\"147\"\u003e Speed Saddle Clamp 34.9mm Alloy QR (Quick Release)\u003c\/h2\u003e\r\n\r\n\u003cp data-end=\"408\" data-start=\"205\"\u003eThe \u003cstrong data-end=\"247\" data-start=\"209\"\u003eSpeed Saddle Clamp 34.9mm Alloy QR\u003c\/strong\u003e is a \u003cstrong data-end=\"299\" data-start=\"253\"\u003eseatpost collar (also called a seat clamp)\u003c\/strong\u003e used to secure a bicycle’s seatpost inside the frame’s seat tube while allowing quick, tool-free adjustment.\u003c\/p\u003e\r\n\r\n\u003chr data-end=\"413\" data-start=\"410\"\u003e\r\n\u003ch2 data-end=\"439\" data-section-id=\"15ilybu\" data-start=\"415\"\u003e⚙️ Key Specifications\u003c\/h2\u003e\r\n\r\n\u003cul data-end=\"660\" data-start=\"441\"\u003e\r\n\t\u003cli data-end=\"497\" data-section-id=\"i8zoyp\" data-start=\"441\"\u003e\n\u003cstrong data-end=\"456\" data-start=\"443\"\u003eDiameter:\u003c\/strong\u003e 34.9 mm (fits a 34.9 mm outer seat tube)\u003c\/li\u003e\r\n\t\u003cli data-end=\"567\" data-section-id=\"1dx4cv1\" data-start=\"498\"\u003e\n\u003cstrong data-end=\"513\" data-start=\"500\"\u003eMaterial:\u003c\/strong\u003e Aluminium alloy (lightweight and corrosion-resistant)\u003c\/li\u003e\r\n\t\u003cli data-end=\"609\" data-section-id=\"1syio8f\" data-start=\"568\"\u003e\n\u003cstrong data-end=\"584\" data-start=\"570\"\u003eMechanism:\u003c\/strong\u003e Quick release (QR) lever\u003c\/li\u003e\r\n\t\u003cli data-end=\"660\" data-section-id=\"rz84p5\" data-start=\"610\"\u003e\n\u003cstrong data-end=\"625\" data-start=\"612\"\u003eFunction:\u003c\/strong\u003e Locks the seatpost height in place\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003chr data-end=\"665\" data-start=\"662\"\u003e\r\n\u003ch2 data-end=\"686\" data-section-id=\"1jknk2\" data-start=\"667\"\u003e Compatibility\u003c\/h2\u003e\r\n\r\n\u003cp data-end=\"706\" data-start=\"688\"\u003eTypically used on:\u003c\/p\u003e\r\n\r\n\u003cul data-end=\"876\" data-start=\"707\"\u003e\r\n\t\u003cli data-end=\"732\" data-section-id=\"vxbj8a\" data-start=\"707\"\u003eModern aluminium frames\u003c\/li\u003e\r\n\t\u003cli data-end=\"772\" data-section-id=\"1istz06\" data-start=\"733\"\u003eSome carbon frames with metal inserts\u003c\/li\u003e\r\n\t\u003cli data-end=\"795\" data-section-id=\"1qnui27\" data-start=\"773\"\u003eMountain bikes (MTB)\u003c\/li\u003e\r\n\t\u003cli data-end=\"823\" data-section-id=\"1x4bnfn\" data-start=\"796\"\u003eHybrid and commuter bikes\u003c\/li\u003e\r\n\t\u003cli data-end=\"876\" data-section-id=\"1tdvxqx\" data-start=\"824\"\u003eBMX race or freestyle bikes with larger seat tubes\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp data-end=\"1066\" data-start=\"878\"\u003eImportant:\u003cbr data-end=\"891\" data-start=\"888\"\u003e\r\nThe \u003cstrong data-end=\"956\" data-start=\"895\"\u003e34.9 mm size refers to the frame seat tube outer diameter\u003c\/strong\u003e, not the seatpost itself. The seatpost is usually smaller (e.g., 27.2 mm or 31.6 mm), depending on the frame.\u003c\/p\u003e\r\n\r\n\u003chr data-end=\"1071\" data-start=\"1068\"\u003e\r\n\u003ch2 data-end=\"1088\" data-section-id=\"v6duzg\" data-start=\"1073\"\u003e⚡ Advantages\u003c\/h2\u003e\r\n\r\n\u003cul data-end=\"1314\" data-start=\"1090\"\u003e\r\n\t\u003cli data-end=\"1142\" data-section-id=\"wc0cky\" data-start=\"1090\"\u003e???? \u003cstrong data-end=\"1119\" data-start=\"1095\"\u003eTool-free adjustment\u003c\/strong\u003e (quick height changes)\u003c\/li\u003e\r\n\t\u003cli data-end=\"1182\" data-section-id=\"un3c5h\" data-start=\"1143\"\u003e⚖️ \u003cstrong data-end=\"1182\" data-start=\"1148\"\u003eLightweight alloy construction\u003c\/strong\u003e\n\u003c\/li\u003e\r\n\t\u003cli data-end=\"1233\" data-section-id=\"1rkmwrq\" data-start=\"1183\"\u003e???? \u003cstrong data-end=\"1233\" data-start=\"1188\"\u003eConvenient for shared or adjustable bikes\u003c\/strong\u003e\n\u003c\/li\u003e\r\n\t\u003cli data-end=\"1282\" data-section-id=\"1jn8gas\" data-start=\"1234\"\u003e???? \u003cstrong data-end=\"1282\" data-start=\"1239\"\u003eSecure clamping when properly tightened\u003c\/strong\u003e\n\u003c\/li\u003e\r\n\t\u003cli data-end=\"1314\" data-section-id=\"16onnsi\" data-start=\"1283\"\u003e???? Easy to replace or upgrade\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003chr data-end=\"1319\" data-start=\"1316\"\u003e\r\n\u003ch2 data-end=\"1338\" data-section-id=\"1f9mktt\" data-start=\"1321\"\u003e⚠️ Limitations\u003c\/h2\u003e\r\n\r\n\u003cul data-end=\"1527\" data-start=\"1340\"\u003e\r\n\t\u003cli data-end=\"1398\" data-section-id=\"1h3ol2d\" data-start=\"1340\"\u003eQR levers can loosen if low-quality or poorly adjusted\u003c\/li\u003e\r\n\t\u003cli data-end=\"1468\" data-section-id=\"a5qub6\" data-start=\"1399\"\u003eOver-tightening can damage lightweight frames (especially carbon)\u003c\/li\u003e\r\n\t\u003cli data-end=\"1527\" data-section-id=\"woe4nn\" data-start=\"1469\"\u003eMust match exact frame diameter—34.9 mm is not universal\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003chr data-end=\"1532\" data-start=\"1529\"\u003e\r\n\u003ch2 data-end=\"1551\" data-section-id=\"18xij8a\" data-start=\"1534\"\u003e Bottom line\u003c\/h2\u003e\r\n\r\n\u003cp data-end=\"1699\" data-start=\"1553\"\u003eYes—this is a \u003cstrong data-end=\"1628\" data-start=\"1567\"\u003equick-release seat clamp used to lock a 34.9 mm seat tube\u003c\/strong\u003e, mainly on modern bikes where fast saddle height adjustment is useful.\u003c\/p\u003e\r\n","brand":"SPEED","offers":[{"title":"Default Title","offer_id":45662610325726,"sku":"M26","price":75.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1242\/8790\/files\/17817_rex-quick-release-alloy-349mm-mtb-seat-clamp-black-SCS504__43100_11zon.jpg?v=1750178615","url":"https:\/\/onlino-bicycle-shopco.shop\/products\/saddle-clamp-34-9mm-alloy-qr","provider":"Online Bicycle Shop","version":"1.0","type":"link"}