3. Chain length on bicycles with rear suspension
!"#$%#&'("$)*$+$,-%%$./01$2#3#&2-&'$)&$("#$4).#4#&($)*$("#$0#/0
5653#&5-)&7 8#9/65#$)*$("-5:$/&$#;9#55-.#$%)/2$4/1$<#$3%/9#2
)&$("#$20-.#$515(#4$-*$("#$9"/-&$%#&'("$-5$())$5")0(7 =#($("#
%#&'("$)*$("#$9"/-&$<1$/22-&'$(,)$%-&>5$()$("#$9"/-&$,"#&$("#$0#/0
5653#&5-)&$-5$/($/$3)5-(-)&$,"#0#$2-4#&5-)&$?+?$-5$%)&'#5($/&2
("#$9"/-&$-5$)&$("#$%/0'#5($530)9>#($/&2$("#$%/0'#5($9"/-&0-&'7 @*
("#$/4)6&($)*$4).#4#&($)*$("#$0#/0$5653#&5-)&$-5$%/0'#:$("#
5%/9>$-&$("#$9"/-&$4/1$&)($<#$(/>#&$63$30)3#0%1$,"#&$("#$9"/-&$-5
)&$("#$54/%%#5($9"/-&0-&'$/&2$54/%%#5($530)9>#(7
4. Outer casing length
ABC$D))5#&$("#$8E(#&5-)&$/2F65(4#&($590#,$6&(-%$-($-5$-&$("#
3)5-(-)&$5"),&$-&$("#$-%%65(0/(-)&7
AGC$H"#9>$("/($("#0#$-5$#&)6'"$5%/9>$-&$("#$)6(#0$9/5-&'7 I#;(:
/%-'&$("#$)6(#0$9/5-&'$,-("$("#$<)(()4
#2'#$)*$("#$)6(#0$9/5-&'$")%2#0$/($("#
0#/0$2#0/-%%#60$/&2$("#&$96($)*$/&1$#;9#55
%#&'("$)*$)6(#0$9/5-&'7
H)&	($("#$9/<%#$()$("#$0#/0
2#0/-%%#60$/&2:$/*(#0$(/>-&'$63
("#$-&-(-/%$5%/9>$-&$("#$9/<%#:$
0#E5#960#$()$("#$0#/0
2#0/-%%#60$/5$5"),&$-&$("#
-%%65(0/(-)&7
XTR
SL-M970
SIS-SP41
RD-M972
SGS / GS
FH-M970 / FH-M975
9
CS-M970
CN-7701
SM-SP17 / SM-BT17
!# 9 " & - 9 / % $ = # 0 . - 9 # $ @ & 5 ( 0 6 9 ( - ) & 5 SI-5W70A-005
RD-M972
RD-M772
+22$G$%-&>5$A,-("$("#$9"/-&$)&$<)("$("#$%/0'#5(
530)9>#($/&2$("#$%/0'#5($9"/-&0-&'C
D/0'#5(
530)9>#(
H"/-&
D/0'#5(
9"/-&0-&'
J#/0$2#0/-%%#60
=#0-#5
J+K@LM@JN$A="-*(-&'$%#.#0C
O6(#0$9/5-&'
J#/0$2#0/-%%#60
!13#
M0##"6<
P#/05
H/55#((#$530)9>#(
H"/-&
8)(()4$<0/9>#($'6-2#
In order to realize the best performance, we recommend that the following
combination be used.
XT
SL-M770
SIS-SP41
RD-M772
SGS / GS
FH-M770 / FH-M775
9
CS-M770
CN-HG93
SM-SP17 / SM-BT17
Specifications
Q)2#%$&64<#0
!1 3 #
P#/05
!)(/%$9/3/9-(1
Applicable sprocket combination
=4/%%#5($530)9>#(
M0)&($9"/-&,"##%$())("$2-**#0#&9#
JLEQRSG$T$JLEQSSG
=P=
R
UV!
11 - 32T, 11 - 34T, 12 - 34T
BB!
GG!
Rear Derailleur
P=
R
WW!
BB!
GG!
Installation of the rear derailleur
Note: K#0-)2-9/%%1$9"#9>$("/($("#0#$-5$&)$'/3$<#(,##&$("#
20)3)6($/&2$("#$<0/9>#($/5$5"),&$-&$("#$-%%65(0/(-)&7 @*$("#0#
-5$/$'/3$<#(,##&$("#5#$(,)$3/0(5:$30)<%#45$,-("$'#/0
5"-*(-&'$3#0*)04/&9#$4/1$)99607
RD-M972
RD-M772
V$44$+%%#&$>#1
L0)3)6(
80/9>#(
Bracket spindle
Tightening torque :
8 - 10 N·m {70 - 86 in. lbs.}
General Safety Information
WARNING
X@*$-($-5$2-**-96%($()$-&5(/%%$("#$,"##%:$-&5(/%%$("#$Y6-9>$0#%#/5#$%#.#0$)&$("#$0)()0$5-2#7
@*$2)-&'$("-5:$4/>#$560#$("/($("#$Y6-9>$0#%#/5#$%#.#0$2)#5$&)($-&(#0*#0#$,-("$("#$0)()0$/&2$("/(
<60&5$2)$&)($)99607
XZ5#$(0/%$2#(#0'#&($()$9%#/&$("#$9"/-&7L)$&)($65#$/%>/%-E</5#2$)0$/9-2$</5#2$2#(#0'#&($569"
/5$065($9%#/$/5$-($4/1$0#56%($-&$2/4/'#$/&2T)0$*/-%60#$)*$("#$9"/-&7
XZ5#$("#$0#-&*)09#2$9)&	(-&'$3-&$)&%1$*)0$9)&	(-&'$("#$&/00),$(13#$)*$9"/-&7
X!"#0#$/0#$(,)$2-**#0#&($(13#5$)*$0#-&*)09#2$9)&	(-&'$3-&5$/./-%/<%#78#$560#$()$9"#9>$("#$(/<%#
<#%),$<#*)0#$5#%#9(-&'$,"-9"$3-&$()$65#7 @*$9)&	(-&'$3-&5$)("#0$("/&$0#-&*)09#2$9)&	(-&'$3-&5
/0#$65#2:$)0$-*$/$0#-&*)09#2$9)&	(-&'$3-&$)0$())%$,"-9"$-5$&)($56-(/<%#$*)0$("#$(13#$)*$9"/-&$-5
65#2:$56**-9-#&($9)&	(-)&$*)09#$4/1$&)($<#$)<(/-:$,"-9"$9)6%2$9/65#$("#$9"/-&$()$<0#/>$)0
*/%%$)**7
X@*$-($-5$	#55/01$()$/2F65($("#$%#&'("$)*$("#$9"/-&$26#$()$/$9"/&'#
-&$("#$&64<#0$)*$530)9>#($(##(":$4/>#$("#$96($/($5)4#$)("#0$3%/9#
("/&$("#$3%/9#$,"#0#$("#$9"/-&$"/5$<##&$F)-$65-&'$/
0#-&*)09#2$9)&	(-&'$3-&$)0$/&$#&2$3-&7 !"#$9"/-&$,-%%$<#
2/4/'#2$-*$-($-5$96($/($/$3%/9#$,"#0#$-($"/5$<##&$F)-$,-("$/
0#-&*)09#2$9)&	(-&'$3-&$)0$/&$#&2$3-&7
XH"#9>$("/($("#$(#&5-)&$)*$("#$9"/-&$-5$9)00#9($/&2$("/($("#$9"/-&$-5$&)($2/4/'#27@*$("#$(#&5-)&$-5
())$,#/>$)0$("#$9"/-&$-5$2/4/'#2:$("#$9"/-&$5")6%2$<#$0#3%/9#27 @*$("-5$-5$&)($2)&#:$("#$9"/-&
4/1$<0#/>$/&2$9/65#$5#0-)65$-&F6017
XObtain and read the service instructions carefully prior to installing the parts. D))5#:$,)0&$)0
2/4/'#2$3/0(5$4/1$9/65#$("#$<-919%#$()$*/%%$).#0$/&2$5#0-)65$-&F601$4/1$)9960$/5$/$0#56%(7 [#
5(0)&'%1$0#9)44#&2$)&%1$65-&'$'#&6-&#$="-4/&)$0#3%/9#4#&($3/0(57
XObtain and read the service instructions carefully prior to installing the parts. @*$/2F65(4#&(5
/0#$&)($9/00-#2$)6($9)00#9(%1:$("#$9"/-&$4/1$9)4#$)**$/&2$("-5$4/1$9/65#$1)6$()$*/%%$)**$("#$<-919%#
,"-9"$9)6%2$0#56%($-&$5#0-)65$-&F6017
XJ#/2$("#5#$!#9"&-9/%$=#0.-9#$@&5(069(-)&5$9/0#*6%%1:$/&2$>##3$("#4$-&$/$5/*#$3%/9#$*)0$%/(#0
0#*#0#&9#7
Note
X@*$'#/0$5"-*(-&'$)3#0/(-)&5$2)$&)($*##%$54))(":$,/5"$("#$2#0/-%%#60$/&2$%6<0-9/(#$/%%$4).-&'$3/0(57
X @*$("#$/4)6&($)*$%))5#7$-&$("#$%-&>5$-5$5)$'0#/($("/($/2F65(4#&($-5$&)($3)55-<%#:$1)6$5")6%2
0#3%/9#$("#$2#0/-%%#607
X\)6$5")6%2$3#0-)2-9/%%1$9%#/&$("#$2#0/-%%#60$/&2$%6<0-9/(#$/%%$4).-&'$3/0(5$A4#9"/&-54$/&2
36%%#15C7
X@*$'#/0$5"-*(-&'$/2F65(4#&($9/&&)($<#$9/00-#2$)6(:$9"#9>$("#$2#'0##$)*$3/0/%%#%-54$/($("#$0#/0$#&2
)*$("#$<-919%#7 +%5)$9"#9>$-*$("#$9/<%#$-5$%6<0-9/(#2$/&2$-*$("#$)6(#0$9/5-&'$-5$())$%)&'$)0$())$5")0(7
X@*$1)6$"#/0$/<&)04/%$&)-5#$/5$/$0#56%($)*$%))5#7$-&$/$36%%#1:$1)6$5")6%2$0#3%/9#$("#$36%%#17
X@*$("#$9"/-&$>##35$9)4-&'$)**$("#$530)9>#(5$260-&'$65#:$0#3%/9#$("#$530)9>#(5$/&2$("#$9"/-&7
XZ5#$/$*0/4#$,-("$-&(#0&/%$9/<%#$0)6(-&'$-5$5(0)&'%1$2-59)60/'#2$/5$-($"/5$(#&2#&9-#5$()$-43/-0$("#
=@=$5"-*(-&'$*6&9(-)&$26#$()$-(5$"-'"$9/<%#$0#5-5(/&9#7
X+%,/15$<#$560#$()$65#$("#$530)9>#($5#($<#/0-&'$("#$5/4#$'0)63$4/0>57 I#.#0$65#$-&$9)4<-&/(-)&
,-("$/$530)9>#($<#/0-&'$/$2-**#0#&($'0)63$4/0>7
XZ5#$/&$)6(#0$9/5-&'$,"-9"$5(-%%$"/5$5)4#$%#&'("$()$53/0#$#.#&$,"#&$("#$"/&2%#</05$/0#$(60
/%%$("#$,/1$()$<)("$5-2#57 M60("#04)0#:$9"#9>$("/($("#$5"-*(-&'$%#.#0$2)#5$&)($()69"$("#$<-919%#
*0/4#$,"#&$("#$"/&2%#</05$/0#$(60$/%%$("#$,/17
X+$53#9-/%$'0#/5#$-5$65#2$*)0$("#$'#/0$5"-*(-&'$9/<%#$A=@=E=KUBC7L)$&)($65#
LZJ+E+HN$'0#/5#$)0$)("#0$(13#5$)*$'0#/5#:$)("#0,-5#$("#1$4/1$9/65#
2#(#0-)0/(-)&$-&$'#/0$5"-*(-&'$3#0*)04/&9#7
XP0#/5#$("#$-&�$9/<%#$/&2$("#$-&5-2#$)*$("#$)6(#0$9/5-&'$<#*)0#$65#$()
#&560#$("/($("#1$5%-2#$30)3#0%17
XM)0$54))("$)3#0/(-)&:$65#$("#$53#9-*-#2$)6(#0$9/5-&'$/&2$("#$<)(()4$<0/9>#(
9/<%#$'6-2#7
XO3#0/(-)&$)*$("#$%#.#05$0#%/(#2$()$'#/0$5"-*(-&'$5")6%2$<#$4/2#$)&%1$,"#&
("#$*0)&($9"/-&,"##%$-5$(60&-&'7
XK/0(5$/0#$&)($'6/0/&(##2$/'/-&5($&/(60/%$,#/0$)0$2#(#0-)0/(-)&$0#56%(-&'$*0)4$&)04/%$65#7
XM)0$4/;-464$3#0*)04/&9#$,#$"-'"%1$0#9)44#&2$="-4/&)$%6<0-9/&(5$/&2$4/-&(#&/&9#$30)269(5
XM)0$/&1$Y6#5(-)&5$0#'/02-&'$4#(")25$)*$-&5(/%%/(-)&:$/2F65(4#&(:$4/-&(#&/&9#$)0$)3#0/(-)&:
3%#/5#$9)&(/9($/$30)*#55-)&/%$<-919%#$2#/%#07
H"/-&$())%H"/-&
RE53##2$563#0$&/00),
9"/-&$569"$/5$
HIESS]B$T$HIE^PRW
_E T SE T `E53##2$&/00),$
9"/-&$569"$/5$
HIE^PV]$T$HIE^PU]
J#-&*)09#2$
9)&	(-&'$3-&
!DEHIWG$T$!DEHIGS
!DEHIWG$T$!DEHIGS
Group marks
1. Top adjustment
!60&$("#$()3$/2F65(4#&($590#,$()$/2F65($5)$("/(
("#$'6-2#$36%%#1$-5$-&$%-&#$,-("$("#$)6(#0$%-&#$)*
("#$54/%%#5($530)9>#($,"#&$%))>-&'$*0)4$("#$0#/07
2. Low adjustment
!60&$("#$%),$/2F65(4#&($590#,$5)$("/($("#$'6-2#
36%%#1$4).#5$()$/$3)5-(-)&$2-0#9(%1$-&$%-&#$,-("$("#
%/0'#5($530)9>#(7
SIS Adjustment
!) 3 $ /2 F6 5( 4# & (
590#,
P6-2#$36%%#1
Pull
Less than 30 mm
Tightening torque :
5 - 7 N·m {44 - 60 in. lbs.}
P0)).#
Note: 8#$560#$("/($("#$9/<%#$-5
5#960#%1$-&$("#$'0)).#7
D),$/2F65(4#&(
590#,
Cutting the outer casing
+*(#0$96((-&'$("#$)6(#0$9/5-&':$4/>#$("#$#&2$0)6&2$5)$("/($("#
-&5-2#$)*$("#$")%#$"/5$/$6&-*)04$2-/4#(#07
+((/9"$("#$5/4#$)6(#0
#&2$9/3$()$("#$96($#&2
)*$("#$)6(#0$9/5-&'7
O6(#0$#&2$9/3
a@*$("#$0#/0$2#0/-%%#60$4).#5$()$/$%/0'#$2#'0##:$569"$/5$-&
<-919%#5$,-("$0#/0$5653#&5-)&:$-($-5$0#9)44#&2#2$("/($1)6
0#3%/9#$("#$9/3$,-("$("#
/99#55)01$/%64-&64$9/37
!"#$#&2$)*$("#$)6(#0$9/5-&'
,"-9"$"/5$("#$/%64-&64$9/3
5")6%2$<#$/($("#$2#0/-%%#60$5-2#7 +%64-&64$9/3
L#0/-%%#60$5-2#
!"#$5#/%#2$9/3$,-("
()&'6#$/&2$("#$06<<#0
5"-#%2$5")6%2$<#
-&5(/%%#2$()$("#$)6(#0
9/5-&'$5()33#0$)*$("#
*0/4#7 J6<<#0$5"-#%2
J6<<#0$5"-#%2
8#$9/0#*6%$&)($()$<#&2
=#/%#2$9/3$,-("$()&'6#
5. How to use the B-tension adjustment screw
Q)6&($("#$9"/-&$)&$("#$54/%%#5($9"/-&0-&'$/&2$("#$%/0'#5(
530)9>#(:$/&2$(60&$("#$90/&>$/04$()$5"-*($'#/057 !"#&$(60&$("#$8E
(#&5-)&$/2F65(4#&($590#,
()$/2F65($5)$("/($("#$'6-2#
36%%#1$2)#5$&)($-&(#0*#0#
,-("$("#$530)9>#($<6($&)($5)
9%)5#$("/($-($()69"#5$("#
9"/-&7 I#;(:$5#($("#$9"/-&
()$("#$54/%%#5($530)9>#(
/&2$0#3#/($("#$/<).#$()
4/>#$560#$("/($("#$36%%#1
2)#5$&)($()69"$("#
530)9>#(7
■Replacing the rear derailleur (RD-M972)
Note: When removing the tension pulley in
order to replace the rear derailleur,
remove the E-ring first.
<Checking the distance between the largest sprocket
and the guide pulley>
=#($("#$0#/0$2#0/-%%#60$()$("#$%),#5($'#/0
3)5-(-)&:$5()3$("#$,"##%$*0)4$(60&-&':$/&2$("#&
9"#9>$("/($("#$2-5(/&9#$*0)4$("#$#2'#$)*$("#
'6-2#$36%%#1$()$("#$#2'#$)*$("#$%/0'#5($530)9>#(
-5$,-("-&$("#$0/&'#$)*$V$E$`$447 !60&$("#$90/&>
/04$()$5"-*($'#/05$/&2$9"#9>$("/($("#0#$-5$&)
0)6'"7$-&$("#$*##%7 @*$("#$&64<#0$)*$(##("$*)0$("#$9/55#((#
530)9>#($-5$9"/&'#2:$9/001$)6($("-5$5#((-&'$/'/-&7
D/0'#5($530)9>#( =4/%%#5($530)9>#(
8E(#&5-)&
/2F65(4#&($590#,
6. SIS Adjustment
O3#0/(#$("#$5"-*(-&'$%#.#0$5#.#0/%$(-4#5$()$4).#$("#$9"/-&$()$("#
G&2$530)9>#(7 !"#&:$,"-%#$30#55-&'$("#$%#.#0$F65($#&)6'"$()$(/>#
63$("#$3%/1$-&$("#$%#.#0:$(60&$("#$90/&>$/047
["#&$5"-*(-&'$()
W02
!-'"(#&$("#$)6(#0$9/5-&'
/2F65(4#&($</00#%$6&(-%$("#
9"/-&$0#(60&5$()$("#$G&2
530)9>#(7 A9%)9>,-5#C
D))5#&$("#$)6(#0$9/5-&'
/2F65(4#&($</00#%$6&(-%$("#
9"/-&$()69"#5$("#$W02$530)9>#(
/&2$4/>#5$&)-5#7 A9)6&(#0
9%)9>,-5#C
["#&$&)$5)6&2
/($/%%$-5$"#/02
Best setting
!"#$<#5($5#((-&'$-5$,"#&$("#$5"-*(-&'$%#.#0$-5
)3#0/(#2$F65($#&)6'"$()$(/>#$63$("#$3%/1$/&2$("#
9"/-&$()69"#5$("#$W02$530)9>#($/&2$4/>#5$&)-5#7
a J#(60&$("#$%#.#0$()$-(5$)0-'-&/%$3)5-(-)&$A("#$3)5-(-)&$,"#0#
("#$%#.#0$-5$/($("#$G&2$530)9>#($5#((-&'$/&2$-($"/5$<##&
0#%#/5#2C$/&2$("#&$(60&$("#$90/&>$/04$9%)9>,-5#7 @*$("#
9"/-&$-5$()69"-&'$("#$W02$530)9>#($/&2$4/>-&'$&)-5#:$(60&$("#$)6(#0
9/5-&'$/2F65(4#&($</00#%$9%)9>,-5#$5%-'"(%1$()$(-'"(#&$-($6&(-%$("#$&)-5#
5()35$/&2$("#$9"/-&$06&5$54))("%17
O3#0/(#$%#.#0$()$9"/&'#$'#/05:$/&2$9"#9>$("/($&)$&)-5#$)99605
-&$/&1$)*$("#$'#/0$3)5-(-)&57
M)0$("#$<#5($=@=$3#0*)04/&9#:$3#0-)2-9/%%1$%6<0-9/(#$/%%$
3),#0E(0/&54-55-)&$3/0(57
+2F65(4#&($<)%( +2F65(4#&($<)%(
Note:
!"#$2-5(/&9#$<#(,##&$("#$)6(#0$5()33#0$()$("#$)6(#0$9/5-&'
")%2#0$)*$("#$0#/0$2#0/-%%#60$4/1$9"/&'#$,"#&$("#$0#/0
5653#&5-)&$4).#5:$5)$2#(#04-&#$("#$%#&'("$)*$("#$)6(#0$9/5-&'$/(
("#$3)-&($,"#0#$("-5$%#&'("$-5$/($-(5$'0#/(#5(7
Note:
=#($("#$-&�$9/<%#$5)$("/($-($30)(062#5$<1$/
%#&'("$)*$%#55$("/&$/<)6($W]$44:$/&2$("#&
9"#9>$("/($("#$-&�$9/<%#$2)#5$&)($-&(#0*#0#$,-("
("#$53)>#5$)*$("#$,"##%7 =()3$("#$,"##%$*0)4
(60&-&'$,"-%#$9/001-&'$)6($("-5$5(#37
K%#/5#$&)(#b 53#9-*-9/(-)&5$/0#$56<F#9($()$9"/&'#$*)0$-430).#4#&($,-(")6($&)(-9#7 AN&'%-5"C$$c Q/1$G]]_$<1$="-4/&)$@&97 d8H$=ef$K0-&(#2$-&$g/3/&7