{"sources":[{"id":"alansbmx-com--nutrak-inner-tube-presta:quick:source:0:listing","type":"listing","url":"https://alans-bmx.myshopify.com/products.json","retrieval_at":"2026-09-25T19:02:00.540Z","source_hash":"832420cd9e5081f40b819f3a84737739d4596be5bc378c7f1c3f9ad550ce061f","access_verdict":"permitted","robots_result":"allow"}],"summaries":[],"facts":[{"id":"01M3FD4PJ9MZBC4K5R8ZY0DFEG","source_id":"alansbmx-com--nutrak-inner-tube-presta:quick:source:0:listing","field":"Material","ordinal":0,"value_number":null,"unit":null,"value_text":"Welded butyl-rubber construction.","original_value":"Welded butyl rubber construction is robust yet lightweight","confidence":0.99,"citation":{"lineage_tier":"T1","artefact_id":"alansbmx-com--nutrak-inner-tube-presta:quick:source:0:listing:artefact:832420cd9e5081f40b819f3a84737739d4596be5bc378c7f1c3f9ad550ce061f","start":1777,"end":1835,"summary_id":null,"excerpt_id":null,"span_sha256":"ee3a6f7967723a4fdc955421b3bf6b3d7d65c7b74bb3dc07abd12ba379c97b8c","source_locator":"characters 1777 to 1835 of the retained text"}},{"id":"01M3FD4Q293ZT44ZWSDPF77KHH","source_id":"alansbmx-com--nutrak-inner-tube-presta:quick:source:0:listing","field":"Valve length","ordinal":1,"value_number":null,"unit":null,"value_text":"Alans BMX states a 48 mm Presta valve unless marked LV; LV means 60 mm.","original_value":"Presta Racing Type Valve 48mm long (Unless LV)","confidence":0.98,"citation":{"lineage_tier":"T1","artefact_id":"alansbmx-com--nutrak-inner-tube-presta:quick:source:0:listing:artefact:832420cd9e5081f40b819f3a84737739d4596be5bc378c7f1c3f9ad550ce061f","start":1853,"end":1899,"summary_id":null,"excerpt_id":null,"span_sha256":"b41cf5b684082fa1049f26e7942df7b1f5761dc211111eab2d5aefc8350c0bac","source_locator":"characters 1853 to 1899 of the retained text"}},{"id":"01M3FD4QJK92EYRN1W7Y0EJPJ3","source_id":"alansbmx-com--nutrak-inner-tube-presta:quick:source:0:listing","field":"Long-valve meaning","ordinal":2,"value_number":null,"unit":null,"value_text":"LV denotes a 60 mm valve rather than 48 mm.","original_value":"LV is for Long Valve and means its a 60mm long valve compared to 48mm","confidence":0.99,"citation":{"lineage_tier":"T1","artefact_id":"alansbmx-com--nutrak-inner-tube-presta:quick:source:0:listing:artefact:832420cd9e5081f40b819f3a84737739d4596be5bc378c7f1c3f9ad550ce061f","start":1917,"end":1986,"summary_id":null,"excerpt_id":null,"span_sha256":"f67ea89e5874a1c8c6ef68901e4bb885185242364bba26986c9cda1dead4d313","source_locator":"characters 1917 to 1986 of the retained text"}},{"id":"01M3FD4R30JM4WKB8Q14780R7E","source_id":"alansbmx-com--nutrak-inner-tube-presta:quick:source:0:listing","field":"Size warning","ordinal":3,"value_number":null,"unit":null,"value_text":"Fractional and decimal markings can represent different rim sizes and should not be crossed.","original_value":"Be careful when selecting Fractional Sizes as these are a different rim size to Decimal markings. 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No outside source was read and no web search was made. The grader then checked each fact against that text. 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