Component
1970s
1980s
1990s
8
9
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
Rear Derailleur : Suntour
Cyclone GT
Cyclone M2 GT
Cyclone 7000
36
34
28
V GT Luxe
aR GT
aRX GT
aR II GT
36
34
32
34
AG Tech
AG Tech 5000
AG Tech GTL
34
34
38
GT
GT
36
34
MounTech 4900
Alpine 5050
34
38
MounTech GTL
MounTech II GTL
38
40
Superbe Tech L
Superbe Tech GTL
alpha-5000
34
40
Le Tech
40
XC
XC Sport 6900
XC Sport
XC Pro GX
38
38
40
40
XC 3 Pulley
1)
XC 9000
XCE
38
?
?
XCD6000
XC Comp
38
39
XCM
XC Master
?
?
8
9
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
Rear Derailleur : Shimano
600 EX GS
600 EX GS
34
40
Skylark
RS12
Tourney TY10
Tourney TY15
Tourney TY20
34
38
34
34
Deore
Deore XT
Deore XT (v2)
Deore XT M730
Deore XT M732
XT M735
XT M737
30
40
40
40
40
40
Z505
Z503
Z501
40
40
40
RD-AL11
Deore RD-MT60
Deore RD-MT62
Deore DX
40
38
38
38
Light Action SGS
Light Action SGS
Light Action SGS
Light Action L554
40
40
40
38
Exage Mountain
Exage 500 LX
Exage ES
38
38
38
Exage Trail
Exage 300 LX
Exage LT
38
38
38
Sport LX Long Cage
Mountain LX
Deore LX
LX M560
XTR M900
XTR M900 SGS
XTR M910 SGS
8
9
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
Rear Derailleur: Huret & Sachs-Huret
DuoPar Eco
Duopar Eco
38
40
DuoPar Titanium
36
New Success
New Success Aris
42
40
Rival
Rival Aris
Rival Aris
40
40
40
Rear Derailleur: Campagnolo
Rally
Rally
Rally
38
38
34
Euclid M010-LG
44
Centaur
38
Themis
44
8
9
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
Component
1970s
1980s
1990s
1)
Disraeligears says this of the XC Triple Pulley:
Fantastic - except for the fact that it looked so weird that, as you cycled by, dogs barked, babies cried and your friends laughed. At you, not with you.