Shimano Component Release Schedule
| Groupset | Dura-Ace | Ultegra (600) | 105 | Tiagra | Sora | Claris |
|---|---|---|---|---|---|---|
| 1973 | 7100 : introduction | |||||
| 1974 | 6000 | |||||
| 1975 | ||||||
| 1976 | track | 6100 | ||||
| 1977 | ||||||
| 1978 | 7200 EX | 6200 | ||||
| 1979 | ||||||
| 1980 | 7300 AX | |||||
| 1981 | 6300 | |||||
| 1982 | ||||||
| 1983 | A105:Golden Arrow | |||||
| 1984 | 7400 : 6 speed and SIS | |||||
| 1985 | 7600 : track | |||||
| 1986 | ||||||
| 1987 | 7400 : 7 speed | 105SC : 6 speed | ||||
| 1988 | 7400 : 8 speed | 6400 | ||||
| 1989 | ||||||
| 1990 | 7400 : STI levers | 105SC : 7 speed | ||||
| 1991 | ||||||
| 1992 | ||||||
| 1993 | FC-7410 low profile crankset FD-7410 front derailleur |
105SC : 8 speed | ||||
| 1994 | ||||||
| 1995 | ||||||
| 1996 | 7700 : 9 speed | |||||
| 1997 | 6500 : 9 speed | |||||
| 1998 | ||||||
| 1999 | 5500 : 9 speed | |||||
| 2000 | ||||||
| 2001 | 4400 : 9 speed | |||||
| 2002 | 3300 : 8 speed | |||||
| 2003 | 7800 : 10 speed | 2200 | ||||
| 2004 | ||||||
| 2005 | 6600 : 10 speed | |||||
| 2006 | 5600 : 10 speed | 4500 : 9 speed | ||||
| 2007 | ||||||
| 2008 | 7900 : 10 speed | 3400 : 9 speed | ||||
| 2009 | 7970 : 10 speed Di2 | 6700 : 10 speed | 2300 : 8 speed | |||
| 2010 | 5700 : 10 speed | |||||
| 2011 | 6770 : 10 speed Di2 | 4600 : 10 speed | ||||
| 2012 | 9000 : 11 speed
9070 : 11 speed Di2 |
3500 : 9 speed with STI | ||||
| 2013 | 6800 : 11 speed | 2400 : 8 speed | ||||
| 2014 | 6870 : 11 speed Di2 | 5800 : 11 speed | ||||
| 2015 | 4700 : 10 speed | |||||
| 2016 | R9100 : 11 speed R9120 : 11 speed, w/ disc brakes R9150 : 11 speed Di2 R9170 : 11 speed Di2, w/ disc brakes |
R3000:9 speed internal cable routing | ||||
| 2017 | R8000 : 11 speed R8020 : 11 speed, w/ disc brakes R8050 : 11 speed Di2 R8070 : 11 speed Di2, w/ disc brakes |
R2000 : 8 speed internal cable routing | ||||
| 2018 | R7000 : 11 speed R7020 : 11 speed, w/ disc brakes |