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17. Carefullyslotthewheelaxleintotheforks,makingsurethediscrotorslidesBETWEENthe
discpadsinthediscbrakeunit.Withdownwardpressureonthewheeltomakesureitis
firmlyintotheforks,lightlytightentheaxlenuts.Thentighteneachnutwiththespanner
supplieduntilveryfirm.
18. Spinthewheel.Ifyourdiscbrakesarerubbingbadly,theyneedfine‐tuning.Ifyouarenot
familiarwithdiscbrakemaintenance,thenforsafetypurposes,ignorethebraketuning
procedurebelow,andsimplytakeyourcompletedWisperbiketoyournearestcycleshopto
getthebrakesfine‐tuned.Itwillonlytakethemafewminutesandyoucanbesureyour
brakeswillbecorrectlytuned.
19. Fine‐tuningthediscbrake:Theaimistogetthe
padssetparalleltothediscrotorandascloseas
possiblewithoutrubbing.Thisisachievedbya
combinationofalteringtheangleandalignment
oftheunitonthefork,alteringcabletension,
andalteringthesettingoftheinsidepad.
Hint:Duringfine‐tuning,repeatedly
viewthediscrotorandpadsfromclose
tothewheel,soyoucanseethe
alignmentandspacingwell.
20. Adjustthealignmentofthebrakeunitonthe
forkbylooseningthetwoadjustmentnuts,then
shiftingthepositionofthebrakeunittogetit
parallelwiththediscrotor,andwiththeoutside
padasclosetotherotoraspossible.
Hint:Iftheoutsidepadstillrubs,
thenthebrakecableistootight.
Loosenthecablefasteningnut
toreleasethecableandallowthepads
toopen.Re‐tensionthecableand
tightenthenutfirmlyonceyouare
happywiththegaptotheoutsidepad.
21. Nowgettheinsidepadclosetothediscrotorby
adjustingtheinnerpadspacernut.
Hint:Alittlerubbingisokay,asthepads
needtowearin.
22. Ifpullingthebrakeleverfullydoesnotapply
enoughpressuretothebrakes,eitherthecable
istooloose,orthegapbetweenthepadstoo
great.Readjustusingtheappropriate
proceduresdescribedabove.