Designation:F2711−08(Reapproved2012)AnAmericanNationalStandardStandardTestMethodsforBicycleFrames1ThisstandardisissuedunderthefixeddesignationF2711;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethodsestablishproceduresforconductingteststodeterminethestructuralperformancepropertiesofbicycleframes.1.2Thesetestmethodsdescribemechanicaltestsfordeter-miningthefollowingperformanceproperties:1.2.1FrameFatigue—HorizontalLoading,1.2.2FrameFatigue—VerticalLoading,and1.2.3FrameImpactStrength.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E4PracticesforForceVerificationofTestingMachines3.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1bicycle,n—two-wheeled,singletrack,articulatedve-hiclethatissolelyhumanpowered.3.1.2bicyclefork,n—structuralconnectionbetweenthefrontwheelandtheframe.3.1.2.1Discussion—Theforktransmitssteeringtorquefromthehandlebarstothefrontwheel.3.1.3bicycleframe,n—structuralmemberthatsupportstheseatwithrearconnectionfortherearwheel,frontconnectionviatheheadtubefortheforkandlowerconnectionforthecrank/pedalassembly.3.1.4bottombracketshell,n—structuralmemberoftheframethathousestheassemblythatsupportsthebearings,whichsupportthecranks.3.1.5crank,n—leverarmthatreceiveshumanenergyastorquetoconvertintobicyclemotion.3.1.6crownraceseat,n—positionontheforkwherethelowersteeringaxisbearingsits.3.1.7downtube,n—lowerstructuralconnectionbetweentheheadtubeandthebottombracketshell.3.1.8dropoutce...
