Honda Racing Corporation was formed in 1982 as Honda's dedicated motorsport subsidiary, initially covering motorcycle racing activities worldwide. When the Superbike World Championship launched in 1988 as a series for modified production machines, Honda was among the founding competitors. The series' format — pitting tuned road-legal motorcycles against each other — suited Honda's engineering resources, and the early seasons saw Honda's RC30 (VFR750R) win frequently before the Ducati V-twins began to assert dominance.
The Castrol sponsorship gave the team a distinctive red and white livery throughout much of its competitive life. HRC backed the programme directly, supplying factory-prepared machines and logistics, making Castrol Honda one of the most prominent factory operations in the paddock during a period when the World Superbike grid still attracted substantial manufacturer investment.
During the early 1990s, Castrol Honda ran the RC30 and later the RC45 as its championship machine. While the RC45 never replicated the outright dominance of the RC30 era, it remained competitive with the right riders. New Zealander Aaron Slight joined the squad and became its standard-bearer for much of the decade, finishing third overall in 1994 and 1995, second to Troy Corser in 1996, and third again in 1997. Slight narrowly missed the championship in 1998, losing to Carl Fogarty by just 5.5 points after a series of late-season misfortunes including a last-lap engine failure at Monza and a start-line incident at Laguna Seca. That year he did claim his first career double victory, at Misano.
American rider Colin Edwards joined Honda in 1998 aboard the RC45, finishing fifth overall that season and recording his first solo international victories with a double win at Monza. Edwards continued to build his results in 1999, finishing second overall behind champion Carl Fogarty, including a 1-2 result at Brands Hatch alongside Slight.
The major turning point came in 2000 when Honda introduced the VTR1000 SP1 (also known as the RC51), a purpose-built V-twin that matched Ducati's engine configuration advantage directly. Edwards rode the new machine to the world championship that year, becoming the first American champion since the series began. He came second to Ducati's Troy Bayliss in 2001, but reclaimed the title in dramatic fashion in 2002 — trailing by 58 points midway through the season, he won nine consecutive races to clinch the championship on the final round at Imola in one of the most remarkable comebacks in the sport's history. Edwards set a new single-season points record of 552 in that championship year.
Aaron Slight was the backbone of Castrol Honda's effort through the mid-to-late 1990s, accumulating 87 career podiums, 13 wins and 8 poles in the series, largely with the team. He won the Suzuka 8 Hours three consecutive times (1993, 1994, 1995) and twice finished as overall runner-up in the world championship. John Kocinski raced alongside Slight in 1997, winning the world championship title that year on a Castrol Honda.
Colin Edwards delivered both of the team's world championship victories, in 2000 and 2002, cementing the team's place in WSBK history.
HRC competed under the Castrol Honda banner until the end of the 2002 season, when a rule change in MotoGP allowed four-stroke engines and led the major Japanese manufacturers — including Honda — to redirect factory resources toward the Grand Prix series. Castrol Honda's withdrawal after 2002 was part of a broader retreat by Japanese factories from World Superbike that transformed the competitive landscape of the series for several years. The two world titles won by Edwards and Kocinski's championship stand as the principal legacy of HRC's direct factory participation in the series.
Works Honda involvement returned briefly from 2019 onward in a different team structure, but the Castrol Honda era of the 1990s and early 2000s represents the sustained peak of the marque's commitment to the World Superbike Championship.