| APRILIA | RS 250 | 1999 |
| APRILIA | RS 250 | 1998 |
| APRILIA | RS 250 | 2002 |
| APRILIA | RS 250 | 2001 |
| APRILIA | RS 250 | 2000 |
| APRILIA | RS 250 | 1997 |
| DUCATI | 851 | 1992 |
| DUCATI | 851 | 1991 |
| DUCATI | 888 | 1994 |
| DUCATI | 888 | 1993 |
| DUCATI | MONSTER 750 | 1997 |
| DUCATI | MONSTER 900 | 1999 |
| DUCATI | MONSTER 900 | 1998 |
| DUCATI | MONSTER 900 | 1995 |
| DUCATI | MONSTER 900 | 1997 |
| DUCATI | MONSTER 900 | 1996 |
| DUCATI | MONSTER 900 I.E. | 2000 |
| DUCATI | MONSTER 900 I.E. | 2001 |
| DUCATI | SS 750 | 1993 |
| DUCATI | SS 750 | 1992 |
| DUCATI | SS 900 | 1993 |
| DUCATI | SS 900 | 1992 |
| DUCATI | SS 900 | 1991 |
| DUCATI | SS 900 | 1990 |
| DUCATI | SS 900 FE | 1998 |
| KAWASAKI | ZX-6 600 | 1994 |
| KAWASAKI | ZX-6 600 | 1995 |
| KAWASAKI | ZX-6 600 | 1996 |
| KAWASAKI | ZX-6 600 | 1997 |
| KAWASAKI | ZX-6 600 | 1998 |
| KAWASAKI | ZX-6 600 | 1999 |
| KAWASAKI | ZX-6 600 | 2000 |
| KAWASAKI | ZX-6 600 | 2001 |
| KAWASAKI | ZX-6 600 | 2002 |
| KAWASAKI | ZX-7 | 1993 |
| KAWASAKI | ZX-7 | 1994 |
| KAWASAKI | ZX-7 | 1995 |
| KAWASAKI | ZX-7 R | 1991 |
| KAWASAKI | ZX-7 R | 1992 |
| KAWASAKI | ZX-7 R | 1993 |
| KAWASAKI | ZX-7 R | 1994 |
| KAWASAKI | ZX-9 R | 1994 |
| KAWASAKI | ZX-9 R | 1995 |
| KAWASAKI | ZX-9 R | 1996 |
| KAWASAKI | ZX-9 R | 1997 |
| KAWASAKI | ZZR 600 | 2003 |
| KAWASAKI | ZZR 600 | 2004 |
| SUZUKI | GSX-R 1100 | 1994 |
| SUZUKI | GSX-R 1100 | 1993 |
| SUZUKI | GSX-R 1100 | 1992 |
| SUZUKI | GSX-R 1100 | 1991 |
| SUZUKI | GSX-R 600 | 1993 |
| SUZUKI | GSX-R 600 | 1992 |
| SUZUKI | GSX-R 750 | 1993 |
| SUZUKI | RGV 250 | 1992 |
| SUZUKI | RGV 250 | 1991 |
| SUZUKI | RGV 250 | 1995 |
| SUZUKI | RGV 250 | 1994 |
| SUZUKI | RGV 250 | 1993 |
| SUZUKI | RGV 250 SP | 1997 |
| SUZUKI | RGV 250 SP | 1996 |
| YAMAHA | FZR 1000 | 1991 |
| YAMAHA | FZR 1000 | 1992 |
| YAMAHA | FZR 1000 | 1993 |
| YAMAHA | FZR 250 | 1986 |
| YAMAHA | FZR 250 | 1987 |
| YAMAHA | FZR 250 | 1988 |
| YAMAHA | FZR 750 R | 1987 |
| YAMAHA | FZR 750 R | 1988 |
| YAMAHA | TZ 250 | 1991 |
| YAMAHA | TZ 250 | 1993 |
| YAMAHA | TZ 250 | 1996 |
| YAMAHA | TZ 250 | 1997 |
| YAMAHA | TZ 250 | 1998 |
| YAMAHA | TZ 250 | 1999 |
| YAMAHA | YZF 600 R | 1996 |
| YAMAHA | YZF 600 R | 1995 |
| YAMAHA | YZF 750 R | 1994 |
| YAMAHA | YZF 750 R | 1995 |
| YAMAHA | YZF 750 R | 1996 |
| YAMAHA | YZF 750 R | 1997 |
| YAMAHA | YZF 750 R | 1998 |
| YAMAHA | YZF 750 R | 1993 |
| YAMAHA | YZF-R3 | 2015 |
| YAMAHA | YZF-R3 | 2016 |
| YAMAHA | YZF-R3 | 2017 |
| YAMAHA | YZF-R3 ABS | 2017 |
| YAMAHA | YZF-R3 ABS | 2016 |
| YAMAHA | YZF-R3 ABS | 2015 |

The company was founded in 1938 as Showa Aircraft Precision Works. In Japan's drive to develop its military capability in preparation for World War II, Showa supplied aircraft suspension and landing systems to various aircraft manufacturers. Banned from developing or manufacturing aircraft systems after the war, Showa entered the car components industry, using its aircraft knowledge to develop specialist suspension products for motorcycles made by the new company Honda. The relationship between Showa and Honda developed over the years, with Honda Racing Corporation accounting for more than 50% of Showa's business.
| Brand | Model | Year | Name | CC |
|---|---|---|---|---|
| DUCATI | MONSTER | 1997 | 750 | |
| DUCATI | SS | 1992 | 750 | |
| DUCATI | SS | 1993 | 750 | |
| DUCATI | 851 | 1991 | Production Racer | 851 |
| DUCATI | 851 | 1992 | Production Racer | 851 |
| DUCATI | 851 | 1991 | Strada | 851 |
| DUCATI | 851 | 1992 | Strada | 851 |
| DUCATI | 888 | 1993 | Strada Biposto | 888 |
| DUCATI | 888 | 1993 | Production Racer | 888 |
| DUCATI | 888 | 1994 | Strada Biposto | 888 |
| DUCATI | MONSTER | 1995 | 900 | |
| DUCATI | MONSTER | 1996 | 900 | |
| DUCATI | MONSTER | 1997 | 900 | |
| DUCATI | MONSTER | 1997 | Solo | 900 |
| DUCATI | MONSTER | 1998 | 900 | |
| DUCATI | MONSTER | 1998 | Cromo | 900 |
| DUCATI | MONSTER | 1998 | Spezial | 900 |
| DUCATI | MONSTER | 1999 | Dark | 900 |
| DUCATI | MONSTER | 1999 | City | 900 |
| DUCATI | MONSTER | 1999 | City Dark | 900 |
| DUCATI | MONSTER | 1999 | Cromo | 900 |
| DUCATI | MONSTER | 1999 | Spezial | 900 |
| DUCATI | MONSTER | 1999 | 900 | |
| DUCATI | MONSTER | 2000 | Spezial | 900 |
| DUCATI | MONSTER | 2000 | Dark | 900 |
| DUCATI | MONSTER | 2000 | City | 900 |
| DUCATI | MONSTER | 2001 | Dark | 900 |
| DUCATI | MONSTER | 2000 | Cromo | 900 |
| DUCATI | MONSTER | 2001 | Cromo | 900 |
| DUCATI | MONSTER | 2001 | Metallic | 900 |
| DUCATI | MONSTER | 2001 | Spezial | 900 |
| DUCATI | MONSTER | 2000 | 900 | |
| DUCATI | MONSTER | 2001 | 900 | |
| DUCATI | SS | 1993 | Carenata | 900 |
| DUCATI | SS | 1998 | Carenata | 900 |
| DUCATI | SS | 1998 | Nuda | 900 |
| DUCATI | SS | 1998 | Carenata | 900 |
| DUCATI | SS | 1990 | 900 | |
| DUCATI | SS | 1991 | Carenata | 900 |
| DUCATI | SS | 1992 | Carenata | 900 |
| DUCATI | SS | 1991 | Nuda | 900 |
| DUCATI | SS | 1992 | Nuda | 900 |
| DUCATI | SS | 1993 | Nuda | 900 |
| DUCATI | SS | 1991 | 900 | |
| DUCATI | SS | 1992 | 900 | |
| DUCATI | SS | 1993 | 900 | |
| DUCATI | SS | 1998 | 900 | |
| KAWASAKI | ZX-6 R | 1995 | Ninja | 600 |
| KAWASAKI | ZX-6 R | 1996 | Ninja | 600 |
| KAWASAKI | ZX-6 R | 1997 | Ninja | 600 |
| KAWASAKI | ZX-6 R | 1998 | Ninja | 600 |
| KAWASAKI | ZX-6 R | 1998 | Ninja Catalysator | 600 |
| KAWASAKI | ZX-6 R | 1999 | Ninja | 600 |
| KAWASAKI | ZX-6 R | 1999 | Ninja Catalysator | 600 |
| KAWASAKI | ZX-6 R | 2001 | Ninja Catalysator | 600 |
| KAWASAKI | ZX-6 R | 2002 | Ninja Catalysator | 600 |
| KAWASAKI | ZX-6 R | 2001 | Ninja | 600 |
| KAWASAKI | ZX-6 R | 2002 | Ninja | 600 |
| KAWASAKI | ZZR | 2003 | 600 | |
| KAWASAKI | ZZR | 2004 | 600 | |
| KAWASAKI | ZX-6 | 1994 | Ninja | 600 |
| KAWASAKI | ZX-6 | 1995 | Ninja | 600 |
| KAWASAKI | ZX-6 | 1996 | Ninja | 600 |
| KAWASAKI | ZX-6 | 1997 | Ninja | 600 |
| KAWASAKI | ZX-6 | 1998 | Ninja | 600 |
| KAWASAKI | ZX-6 | 1999 | Ninja | 600 |
| KAWASAKI | ZX-6 | 2001 | Ninja | 600 |
| KAWASAKI | ZX-6 | 2002 | Ninja | 600 |
| KAWASAKI | ZX-7 | 1991 | Ninja | 750 |
| KAWASAKI | ZX-7 | 1992 | Ninja | 750 |
| KAWASAKI | ZX-7 | 1993 | Ninja | 750 |
| KAWASAKI | ZX-7 | 1994 | Ninja | 750 |
| KAWASAKI | ZX-7 | 1995 | Ninja | 750 |
| SUZUKI | RGV | 1991 | Gamma | 250 |
| SUZUKI | RGV | 1992 | Gamma | 250 |
| SUZUKI | RGV | 1993 | Gamma | 250 |
| SUZUKI | RGV | 1994 | Gamma | 250 |
| SUZUKI | RGV | 1995 | Gamma | 250 |
| SUZUKI | RGV | 1991 | Gamma | 250 |
| SUZUKI | RGV | 1992 | Gamma | 250 |
| SUZUKI | RGV | 1993 | Gamma | 250 |
| SUZUKI | RGV | 1994 | Gamma | 250 |
| SUZUKI | RGV | 1995 | Gamma | 250 |
| SUZUKI | GSX | 1992 | 600 | |
| SUZUKI | GSX | 1993 | 600 | |
| SUZUKI | GSX | 1992 | Katana | 600 |
| SUZUKI | GSX | 1993 | Katana | 600 |
| SUZUKI | GSX-R | 1992 | 600 | |
| SUZUKI | GSX-R | 1993 | 600 | |
| SUZUKI | GSX | 1993 | 750 | |
| SUZUKI | GSX | 1993 | Katana | 750 |
| SUZUKI | GSX-R | 1993 | 750 | |
| SUZUKI | GSX-R | 1993 | 750 | |
| SUZUKI | GSX | 1991 | 1100 | |
| SUZUKI | GSX | 1992 | 1100 | |
| SUZUKI | GSX | 1993 | 1100 | |
| SUZUKI | GSX | 1994 | 1100 | |
| SUZUKI | GSX | 1991 | Katana | 1100 |
| SUZUKI | GSX | 1992 | Katana | 1100 |
| SUZUKI | GSX | 1993 | Katana | 1100 |
| SUZUKI | GSX | 1991 | 1100 | |
| SUZUKI | GSX | 1992 | 1100 | |
| SUZUKI | GSX | 1993 | 1100 | |
| SUZUKI | GSX | 1994 | 1100 | |
| SUZUKI | GSX | 1991 | 1100 | |
| SUZUKI | GSX | 1992 | 1100 | |
| SUZUKI | GSX | 1993 | 1100 | |
| SUZUKI | GSX-R | 1991 | 1100 | |
| SUZUKI | GSX-R | 1992 | 1100 | |
| SUZUKI | GSX-R | 1993 | 1100 | |
| SUZUKI | GSX-R | 1994 | 1100 | |
| SUZUKI | GSX-R | 1991 | 1100 | |
| SUZUKI | GSX-R | 1992 | 1100 | |
| SUZUKI | GSX-R | 1993 | 1100 | |
| SUZUKI | GSX-R | 1994 | 1100 | |
| YAMAHA | YZF | 1996 | Thunder Cat | 600 |
| YAMAHA | YZF | 1995 | 600 | |
| YAMAHA | YZF | 1996 | 600 | |
| YAMAHA | FZR | 1987 | Genesis | 750 |
| YAMAHA | FZR | 1988 | Genesis | 750 |
| YAMAHA | FZR | 1988 | Genesis | 750 |
| YAMAHA | FZR | 1987 | 750 | |
| YAMAHA | FZR | 1988 | 750 | |
| YAMAHA | YZF | 1993 | 750 | |
| YAMAHA | YZF | 1994 | 750 | |
| YAMAHA | YZF | 1995 | 750 | |
| YAMAHA | YZF | 1996 | 750 | |
| YAMAHA | YZF | 1997 | 750 | |
| YAMAHA | YZF | 1998 | 750 | |
| YAMAHA | YZF | 1994 | 750 | |
| YAMAHA | YZF | 1995 | 750 | |
| YAMAHA | YZF | 1996 | 750 | |
| YAMAHA | YZF | 1997 | 750 | |
| YAMAHA | YZF | 1998 | 750 | |
| YAMAHA | YZF | 1993 | 750 | |
| YAMAHA | YZF | 1994 | 750 | |
| YAMAHA | YZF | 1995 | 750 | |
| YAMAHA | YZF | 1996 | 750 | |
| YAMAHA | YZF | 1997 | 750 | |
| YAMAHA | YZF | 1998 | 750 | |
| YAMAHA | FZR | 1991 | Genesis Exup | 1000 |
| YAMAHA | FZR | 1992 | Genesis Exup | 1000 |
| YAMAHA | FZR | 1993 | Genesis Exup | 1000 |
| YAMAHA | FZR | 1991 | Genesis Exup | 1000 |
| YAMAHA | FZR | 1992 | Genesis Exup | 1000 |
| YAMAHA | FZR | 1993 | Genesis Exup | 1000 |
| APRILIA | RS | 2002 | 250 | |
| APRILIA | RS | 2001 | 250 | |
| APRILIA | RS | 2000 | 250 | |
| APRILIA | RS | 1999 | 250 | |
| APRILIA | RS | 1998 | 250 | |
| APRILIA | RS | 1997 | 250 | |
| YAMAHA | YZF | 1993 | 750 | |
| YAMAHA | YZF | 1994 | 750 | |
| YAMAHA | YZF | 1995 | 750 | |
| YAMAHA | YZF | 1996 | 750 | |
| YAMAHA | FZR | 1986 | 250 | |
| YAMAHA | FZR | 1987 | 250 | |
| YAMAHA | FZR | 1987 | 250 | |
| YAMAHA | FZR | 1988 | 250 | |
| SUZUKI | RGV | 1991 | Gamma | 250 |
| SUZUKI | RGV | 1991 | Gamma | 250 |
| SUZUKI | RGV | 1992 | Gamma | 250 |
| SUZUKI | RGV | 1992 | Gamma | 250 |
| SUZUKI | RGV | 1993 | Gamma | 250 |
| SUZUKI | RGV | 1993 | Gamma | 250 |
| SUZUKI | RGV | 1994 | Gamma | 250 |
| SUZUKI | RGV | 1994 | Gamma | 250 |
| SUZUKI | RGV | 1995 | Gamma | 250 |
| SUZUKI | RGV | 1995 | Gamma | 250 |
| SUZUKI | RGV | 1996 | Gamma | 250 |
| SUZUKI | RGV | 1996 | Gamma | 250 |
| SUZUKI | RGV | 1997 | Gamma | 250 |
| SUZUKI | RGV | 1997 | Gamma | 250 |
| YAMAHA | TZ | 1991 | 250 | |
| YAMAHA | TZ | 1993 | 250 | |
| YAMAHA | TZ | 1996 | 250 | |
| YAMAHA | TZ | 1997 | 250 | |
| YAMAHA | TZ | 1998 | 250 | |
| YAMAHA | TZ | 1999 | 250 | |
| YAMAHA | YZF-R3 | 2015 | 320 | |
| YAMAHA | YZF-R3 | 2015 | 320 | |
| YAMAHA | YZF-R3 | 2016 | 320 | |
| YAMAHA | YZF-R3 | 2016 | 320 | |
| YAMAHA | YZF-R3 | 2017 | 320 | |
| YAMAHA | YZF-R3 | 2017 | 320 |
SHOWA Fork service kit 41x45x20 APRILIA RS 250 97-02/KAWASAKI ZX-6/ZX-9R 91-02/YAMAHA YZF-R3/FZR 250-1000 86-13
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