{"product_id":"speed-tyre-27x1-1-4-black","title":"Speed Tyre 27x1 1\/4 Black","description":"\u003ch2 data-end=\"293\" data-section-id=\"1qn1ln\" data-start=\"251\"\u003e Speed Tyre 27×1 1\/4 (Black) Overview\u003c\/h2\u003e\r\n\r\n\u003cp data-end=\"469\" data-start=\"295\"\u003eThe Speed Tyre 27×1 1\/4 (Black) is a standard \u003cstrong data-end=\"368\" data-start=\"341\"\u003ewire-bead clincher tyre\u003c\/strong\u003e designed for older road bikes, vintage commuters, and retro-style bicycles that use \u003cstrong data-end=\"468\" data-start=\"453\"\u003e630 mm rims\u003c\/strong\u003e.\u003c\/p\u003e\r\n\r\n\u003cp data-end=\"506\" data-start=\"471\"\u003eIt follows the ETRTO sizing system:\u003c\/p\u003e\r\n\r\n\u003cul data-end=\"559\" data-start=\"507\"\u003e\r\n\t\u003cli data-end=\"532\" data-section-id=\"1nnhl2d\" data-start=\"507\"\u003e\u003cstrong data-end=\"532\" data-start=\"509\"\u003e27 × 1 1\/4 = 32-630\u003c\/strong\u003e\u003c\/li\u003e\r\n\t\u003cli data-end=\"559\" data-section-id=\"1dnclo6\" data-start=\"533\"\u003eRim diameter: \u003cstrong data-end=\"559\" data-start=\"549\"\u003e630 mm\u003c\/strong\u003e\n\u003c\/li\u003e\r\n\t\u003cli data-end=\"559\" data-section-id=\"1dnclo6\" data-start=\"533\"\u003e\r\n\t\u003ch2 data-end=\"640\" data-section-id=\"1f6glkd\" data-start=\"605\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003e⚙️ Key Specifications (Verified)\u003c\/strong\u003e\u003c\/h2\u003e\r\n\r\n\t\u003cul data-end=\"914\" data-start=\"642\"\u003e\r\n\t\t\u003cli data-end=\"666\" data-section-id=\"1j1govy\" data-start=\"642\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003e\u003cstrong data-end=\"653\" data-start=\"644\"\u003eSize:\u003c\/strong\u003e 27 × 1 1\/4 \u003c\/strong\u003e\u003c\/li\u003e\r\n\t\t\u003cli data-end=\"688\" data-section-id=\"hrzpn7\" data-start=\"667\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003e\u003cstrong data-end=\"679\" data-start=\"669\"\u003eETRTO:\u003c\/strong\u003e 32-630 \u003c\/strong\u003e\u003c\/li\u003e\r\n\t\t\u003cli data-end=\"734\" data-section-id=\"g3wc8b\" data-start=\"689\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003e\u003cstrong data-end=\"713\" data-start=\"691\"\u003eRim compatibility:\u003c\/strong\u003e 630 mm wheels only \u003c\/strong\u003e\u003c\/li\u003e\r\n\t\t\u003cli data-end=\"782\" data-section-id=\"irp5t5\" data-start=\"735\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003e\u003cstrong data-end=\"754\" data-start=\"737\"\u003eConstruction:\u003c\/strong\u003e Wire bead (clincher type) \u003c\/strong\u003e\u003c\/li\u003e\r\n\t\t\u003cli data-end=\"914\" data-section-id=\"15zrwkf\" data-start=\"783\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003e\u003cstrong data-end=\"812\" data-start=\"785\"\u003eTypical pressure range:\u003c\/strong\u003e ~80–90 PSI (some models up to ~100 PSI depending on casing)\u003c\/strong\u003e\u003c\/li\u003e\r\n\t\t\u003cli data-end=\"914\" data-section-id=\"15zrwkf\" data-start=\"783\"\u003e\r\n\t\t\u003ch2 data-end=\"938\" data-section-id=\"ztwco5\" data-start=\"921\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003e???? Tread \u0026amp; Use\u003c\/strong\u003e\u003c\/h2\u003e\r\n\r\n\t\t\u003cp data-end=\"976\" data-start=\"940\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003eMost tyres in this category feature:\u003c\/strong\u003e\u003c\/p\u003e\r\n\r\n\t\t\u003cul data-end=\"1087\" data-start=\"977\"\u003e\r\n\t\t\t\u003cli data-end=\"1019\" data-section-id=\"v67j9a\" data-start=\"977\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003eSemi-slick or light block tread patterns \u003c\/strong\u003e\u003c\/li\u003e\r\n\t\t\t\u003cli data-end=\"1087\" data-section-id=\"xpgc9b\" data-start=\"1020\"\u003e\n\u003cstrong data-end=\"559\" data-start=\"549\"\u003eDesigned for: \u003c\/strong\u003e\r\n\t\t\t\u003cul data-end=\"1087\" data-start=\"1038\"\u003e\r\n\t\t\t\t\u003cli data-end=\"1051\" data-section-id=\"2hd6hx\" data-start=\"1038\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003epaved roads \u003c\/strong\u003e\u003c\/li\u003e\r\n\t\t\t\t\u003cli data-end=\"1068\" data-section-id=\"1smk5tp\" data-start=\"1054\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003elight gravel \u003c\/strong\u003e\u003c\/li\u003e\r\n\t\t\t\t\u003cli data-end=\"1087\" data-section-id=\"18u5arm\" data-start=\"1071\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003ecity commuting \u003c\/strong\u003e\u003c\/li\u003e\r\n\t\t\t\u003c\/ul\u003e\r\n\t\t\t\u003cstrong data-end=\"559\" data-start=\"549\"\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\r\n\t\t\u003c\/ul\u003e\r\n\r\n\t\t\u003cp data-end=\"1105\" data-start=\"1089\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003eThey prioritize:\u003c\/strong\u003e\u003c\/p\u003e\r\n\r\n\t\t\u003cul data-end=\"1211\" data-start=\"1106\"\u003e\r\n\t\t\t\u003cli data-end=\"1130\" data-section-id=\"1o7a98i\" data-start=\"1106\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003elow rolling resistance \u003c\/strong\u003e\u003c\/li\u003e\r\n\t\t\t\u003cli data-end=\"1166\" data-section-id=\"1tqvhtk\" data-start=\"1131\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003edurability over speed performance \u003c\/strong\u003e\u003c\/li\u003e\r\n\t\t\t\u003cli data-end=\"1211\" data-section-id=\"159otdi\" data-start=\"1167\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003estable handling on older steel-frame bikes \u003c\/strong\u003e\u003c\/li\u003e\r\n\t\t\u003c\/ul\u003e\r\n\r\n\t\t\u003chr data-end=\"1216\" data-start=\"1213\"\u003e\r\n\t\t\u003ch2 data-end=\"1247\" data-section-id=\"19plh05\" data-start=\"1218\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003e⚡ Important Clarifications\u003c\/strong\u003e\u003c\/h2\u003e\r\n\r\n\t\t\u003ch3 data-end=\"1286\" data-section-id=\"uh5mjz\" data-start=\"1249\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003e1. “27 inch” is an older standard\u003c\/strong\u003e\u003c\/h3\u003e\r\n\r\n\t\t\u003cul data-end=\"1419\" data-start=\"1287\"\u003e\r\n\t\t\t\u003cli data-end=\"1353\" data-section-id=\"xeeitq\" data-start=\"1287\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003e27\" (630 mm) is \u003cstrong data-end=\"1344\" data-start=\"1305\"\u003edifferent from modern 700c (622 mm)\u003c\/strong\u003e wheels \u003c\/strong\u003e\u003c\/li\u003e\r\n\t\t\t\u003cli data-end=\"1419\" data-section-id=\"1kldk60\" data-start=\"1354\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003eThey are \u003cstrong data-end=\"1388\" data-start=\"1365\"\u003enot interchangeable\u003c\/strong\u003e, even though they look similar \u003c\/strong\u003e\u003c\/li\u003e\r\n\t\t\u003c\/ul\u003e\r\n\r\n\t\t\u003chr data-end=\"1424\" data-start=\"1421\"\u003e\r\n\t\t\u003ch3 data-end=\"1457\" data-section-id=\"1ywgjhh\" data-start=\"1426\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003e2. Pressure varies by brand\u003c\/strong\u003e\u003c\/h3\u003e\r\n\r\n\t\t\u003cul data-end=\"1609\" data-start=\"1458\"\u003e\r\n\t\t\t\u003cli data-end=\"1492\" data-section-id=\"15x40ml\" data-start=\"1458\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003eMany budget tyres: ~80 PSI max \u003c\/strong\u003e\u003c\/li\u003e\r\n\t\t\t\u003cli data-end=\"1609\" data-section-id=\"177gz87\" data-start=\"1493\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003eSome reinforced versions: up to ~90–100 PSI\u003cbr data-end=\"1541\" data-start=\"1538\"\u003e\r\n\t\t\tSo the exact PSI depends on the sidewall marking, not just the size. \u003c\/strong\u003e\u003c\/li\u003e\r\n\t\t\u003c\/ul\u003e\r\n\r\n\t\t\u003chr data-end=\"1614\" data-start=\"1611\"\u003e\r\n\t\t\u003ch3 data-end=\"1649\" data-section-id=\"14acr73\" data-start=\"1616\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003e3. Why this tyre still exists\u003c\/strong\u003e\u003c\/h3\u003e\r\n\r\n\t\t\u003cul data-end=\"1820\" data-start=\"1650\"\u003e\r\n\t\t\t\u003cli data-end=\"1727\" data-section-id=\"w6r9yg\" data-start=\"1650\"\u003e\n\u003cstrong data-end=\"559\" data-start=\"549\"\u003eCommon on: \u003c\/strong\u003e\r\n\r\n\t\t\t\u003cul data-end=\"1727\" data-start=\"1665\"\u003e\r\n\t\t\t\t\u003cli data-end=\"1699\" data-section-id=\"h0opmk\" data-start=\"1665\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003evintage road bikes (1970s–1990s) \u003c\/strong\u003e\u003c\/li\u003e\r\n\t\t\t\t\u003cli data-end=\"1727\" data-section-id=\"1x2q13e\" data-start=\"1702\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003eolder commuter bicycles \u003c\/strong\u003e\u003c\/li\u003e\r\n\t\t\t\u003c\/ul\u003e\r\n\t\t\t\u003cstrong data-end=\"559\" data-start=\"549\"\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\r\n\t\t\t\u003cli data-end=\"1820\" data-section-id=\"1v7s3vp\" data-start=\"1728\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003eStill widely stocked in places like South Africa because many older bikes are still in use \u003c\/strong\u003e\u003c\/li\u003e\r\n\t\t\u003c\/ul\u003e\r\n\r\n\t\t\u003chr data-end=\"1825\" data-start=\"1822\"\u003e\r\n\t\t\u003ch2 data-end=\"1844\" data-section-id=\"18xij8a\" data-start=\"1827\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003e Bottom line\u003c\/strong\u003e\u003c\/h2\u003e\r\n\r\n\t\t\u003cp data-end=\"2011\" data-start=\"1846\"\u003e\u003cstrong data-end=\"559\" data-start=\"549\"\u003eYour summary is accurate: this is a \u003cstrong data-end=\"1946\" data-start=\"1882\"\u003ebasic, affordable replacement tyre for 630 mm vintage wheels\u003c\/strong\u003e, designed for everyday road use rather than performance cycling.\u003c\/strong\u003e\u003c\/p\u003e\r\n\t\t\u003c\/li\u003e\r\n\t\u003c\/ul\u003e\r\n\t\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n","brand":"SPEED","offers":[{"title":"Default Title","offer_id":46224639295710,"sku":"TY24","price":100.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1242\/8790\/files\/6188_oPMirTA05NmL.jpg?v=1748377454","url":"https:\/\/onlino-bicycle-shopco.shop\/products\/speed-tyre-27x1-1-4-black","provider":"Online Bicycle Shop","version":"1.0","type":"link"}