Shimano BR-R450 Owner's manual

Brand: Shimano

Model: BR-R450

Type: Owner's manual

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• Cutthecableatthelengthatwhichitisnotpulledtight

whenthehandlebaristurnedallthewaytotheleftand

right.

• Ifasqueakingnoiseoccursafteralongperiodofuse,

lubricatetheparts.

Technical Service Instructions

Inordertorealizethebestperformance,werecommendthatthe

followingcombinationbeused.

Brakelever

CaliperBrake

Brakecable

Installation of the brake lever

Installation of the brake

5mmAllenkey

Cablehook Innercableend

Outercasing

Innercableend

Installationbolt

Cablehook

Tape

Outercasing

Afteradjustingthebrakeshoepositionsothattheshoe

surfaceandtherimsurfaceareasshownintheillustration,

tightentheshoexingbolt.

Depressthebrakeleverabout10timesasfarasthegripand

checkthateverythingisoperatingcorrectlyandthattheshoe

clearanceiscorrectbeforeusingthebrakes.

Direction of

rim rotation

Direction of

rim rotation

Toe-in

0.5 mm

Note:

TheBR-R450allowstheangleofcontactbetweenthe

shoeandtherim(toe-in)tobeadjusted.Adjustingthe

toe-inmakesitpossibletoobtainsmootherbraking

operation.

1 mm or more

Shoexingbolt

4mmAllenkey

Open

Closed

Quickrelease

lever

Cableadjustmentbolt

Depress about

10 times

BR-R450 CaliperBrake

ST-4500 / ST-3400 / ST-2200

Theusualposition

duringinstallationis

whentheheadofthe

centeringadjustment

screwisasshownin

theillustration.

Centeringadjustmentscrew

5mmAllenkey

BR-R450

Temporarilysecuretheoutercasingtothehandlebar(by

usingtapeorsimilarmaterial).

SI-8EV0A-002

Tightening torque:

6 – 8 N·m

{52 – 69 in. lbs.}

Tightening torque:

8 – 10 N·m {69 – 87 in. lbs.}

Tightening torque:

5 – 7 N·m {43 – 61 in. lbs.}

Cable bolt tightening torque:

6 – 8 N·m {52 – 69 in. lbs.}

2. 6.

Brake shoe setting position Check

Thenwrapthehandlebarwithhandlebartape.

Compressthearch,andsetwhiletheshoeisinrmcontact

withtherim

Installation of the brake itself

Turnthecableadjustmentbolttoreadjusttheshoeclearance.

Makeaminoradjustmentbyusingthecenteringadjustment

screw.

Setthequickreleaselevertotheclosedposition;thenadjust

theshoeclearance(asshownintheillustrationbelow)and

securethecable.

Readjustment of the shoe clearance

Centering of the brake shoe

Cable connection

• Improperuseofyourbicycle'sbrakesystemmayresultina

lossofcontroloranaccident,whichcouldleadtoasevere

injury.Becauseeachbicyclemayhandledifferently,besureto

learntheproperbrakingtechnique(includingbrakelever

pressureandbicyclecontrolcharacteristics)foryourbicycle.

 Consultyourbicycledealerandthebicycle'sownersmanual,

andpracticeyourridingandbrakingtechnique.

• Ifthefrontbrakeisappliedtoostrongly,thewheelmaylock

andthebicyclemayfallforward,andseriousinjurymayresult.

• Securelytightenthecaliperbrakemountingnutstothe

speciedtighteningtorque.

•Uselocknutswithnyloninserts(self-lockingnuts)fornut-

typebrakes.

•Forsunkennuttypebrakes,usesunkennutsofthe

appropriatelengthwhichcanbeturnedsixtimesormore;

whenre-installing,applysealant(lockingadhesive)tothe

nutthreads.

 Ifthenutsbecomelooseandthebrakesfalloff,theymayget

caughtupinthebicycleandthebicyclemayfallover.

 Particularlyifthishappenswiththefrontwheel,thebicycle

maybethrownforwardandseriousinjurycouldresult.

• Brakesdesignedforuseasrearbrakesshouldnotbeusedas

frontbrakes.

• Obtain and read the service instructions carefully prior to

installing the parts.Loose,wornordamagedpartsmaycause

thebicycletofalloverandseriousinjurymayoccurasaresult.

WestronglyrecommendonlyusinggenuineShimano

replacementparts.

• Becarefulnottoallowanyoilorgreasetogetontothebrake

shoes.Ifanyoilorgreasedogetontheshoes,youshould

replacetheshoes,otherwisethebrakesmaynotwork

correctly.

• Checkthebrakecableforrustandfraying,andreplacethe

cableimmediatelyifanysuchproblemsarefound.Ifthisisnot

done,thebrakesmaynotworkcorrectly.

• Alwaysmakesurethatthefrontandrearbrakesareworking

correctlybeforeyouridethebicycle.

• Therequiredbrakingdistancewillbelongerduringwet

weather.

 Reduceyourspeedandapplythebrakesearlyandgently.

• Iftheroadsurfaceiswet,thetireswillskidmoreeasily.Ifthe

tiresskid,youmayfalloffthebicycle.Toavoidthis,reduce

yourspeedandapplythebrakesearlyandgently.

• ReadtheseTechnicalServiceInstructionscarefully,andkeep

theminasafeplaceforlaterreference.

General Safety Information

WARNING

NOTE:

• IfusingSHIMANO'sroadbrakeshoesincombinationwith

ceramicrims,thebrakeshoeswillwearmorequicklythan

normal.

• Ifthebrakeshoeshaveworndownuntilthegroovesareno

longervisible,theyshouldbereplaced.

• Differentbrakeshoeshavetheirowncharacteristics.Askthe

placeofpurchasefordetailswhenpurchasingthebrakeshoes.

• Partsarenotguaranteedagainstnaturalwearordeterioration

resultingfromnormaluse.

• FormaximumperformancewehighlyrecommendShimano

lubricantsandmaintenanceproducts.

• Foranyquestionsregardingmethodsofhandlingor

maintenance,pleasecontacttheplaceofpurchase.

−Toavoidseriousinjuries:

SI-8EV0A-002-00

One Holland, Irvine, California 92618, U.S.A. Phone: +1-949-951-5003

Industrieweg 24, 8071 CT Nunspeet, The Netherlands Phone: +31-341-272222

3-77 Oimatsu-cho, Sakai-ku, Sakai-shi, Osaka 590-8577, Japan

*ServiceInstructionsinfurtherlanguagesare

availableat:http://techdocs.shimano.com

Pleasenote:specificationsaresubjecttochangeforimprovementwithout

notice.(English)

Shimano BR-R450 Owner's manual

Shimano BR-R450 Owner's manual

Shimano BR-R450 Owner's manual

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