A feature released by Honda to coincide with this weekend's Japanese MotoGP, celebrating 50 years since the factory's debut in the premier-class of motorcycle grand prix racing...

The 2016 MotoGP season marks a half-century since Honda first contested the premier-class of ღWorld Championship motorcycle racing.

During much of that time (Honda did not participate between 1968 and 1978) bike racing's most challenging category has been like a university to Hoﷺnda engineers and riders, teaching them𝓀 so much about all aspects of motorcycle design and development.

The class of kings has also brought Honda a huge amount of success: 270 race wins and 38 500cc and MotoGP Riders World Championships andౠ Constructors World♋ Championships. [At the end of the 2015 season].

Honda e꧂ntered the premier 500cc class for the first time in 1966, seven years after the company made its World Championship debut in the 1959 Isle of Man 125cc TT. Since then Honda has repeat the development and victory to achieved a record total of more 700 race wins across all five classes: MotoGP/500cc, 350cc, 250cc, 125cc and 50cc.

Since 1966 a total of 31 riders have won 500cc/MotoGP races riding Honda machinery. Honda also holds the records for the most premier-class victories in one season: 15 win♊s in 1997 and 2003, 14 wins in 2002 and 2014 and 13 wins in 1996, 1998 and 2011.

RC181: the story of Honda's first premier-class Grand Prix motorcycle

Honda's f🌄irst ever premier-class Grand Prix bike made i🐓ts race debut 50 years ago, in May 1966.

Considering its fabulously exotic stablemates - including the six cylinder
250cc 💧RC166 and the five cylinder 125cc RC149 - tไhe RC181 was a relatively straightforward motorcycle.

The mighty machine utilised typical Honda engine archi💯tecture: four cylinders inline and canted forward, with gear-driven cams operating four valves per cylinder. Its first incarnation gave rideওr Jim Redman 85 horsepower at 12,500rpm for a top speed of almost 170mph.

Redman began Honda's premier-class career in style, beating Giacomo Agostini (MV Agusta) at Hockenheim on May 22nd 1966. Badly outgunned, MV unleashed an overbored version of its lightweight 350 triple for the following Dutch GP where Redman rode an inspired race to defeat the Italia♉n once again. It seemed Redman was on course to fulfilling Honda's dream of con🌃quering the 500 class.

But one week later at Spa-Francorchamps Redman crashed in the rain lashed Belgian Grand Prix. "There was a lake of water - ♛the machine aquaplaned and down I went a🐻t over 250km/h," said Redman who was badly battered in the accident and later announced his retirement.

With Redman out, Honda threw its weight behind Mike Hailwood, who already had expe🔯rience in the 250, 350 and 500 classes. At Assen Hailwood crashed while leading and at Spa he was robbed of success by gearbox gremlins. At Brno he inflicted a decisive defeat on Ago, but at Imatra in Finland he came home second after running off the track.

Hailwood won again at the Ulster and at the Isle of Man, so if he scored one more victory at the season finale in Italy the title would be Honda's, even though he had miওssed the first three ro🐈unds. Hailwood and Ago duelled for victory at Monza, until the RC181 broke an exhaust valve.

Honda/MV rivalry was now at its peak, but despite the intense compet𝓡ition the two teams enjoyed a relationship of mutual reꩲspect that verged on friendliness.

"We exchanged presents sometimes," remembers Honda's 𓄧team leader Michihiko Aika. "MV would give us Italian wine and we would give them dried seaweed from Japan."

Hailwood may have failed to win the premier-class title but 1966 was year the factory managed the unique achievement of winning all five Constructors World Championships (500cc, 350cc, 250cc, 125cc a🎃nd 50cc), while Hailwood won the 350 and 250 riders titles and Swiss ace Luigi Taveri took the 125 crown.

"That season was our golden era, even though we only had a few staff in the team," Aika recalls. "We had a maximum of 12 staff at the Isle of Man, and that included engine designers,♔ chassis designer and all the mechanics, we had no drivers or helpers. We did everything ourselves, looking after 30 machines, six for each class.꧃"

The enormous effort of contesting all five motorcycling World Championships and also the Formula 1 car series took its toll, so Honda withdrew fro🅷m the 125 and 50 classes before the 1967 season. Honda had entered F1 for the first time in 1964, won its first race in 1965 and planned a full assault on the 1967 F1 series with former bike champion John Surtees, driving Honda's three-litre V12.

Aika started the 1967 motorcycle season with just a handful of staff and with Hඣailwood attacking the 250, 350 and 500 series alone.

The RC181 was improved for its second campaign, growing 10cc to 499cc, for even more power. However, the bike broke its crank at the opening Hockenheim race, while Hailwood was well ahead of Agostini's MV. The following month The Briton won a famous victor💎y over Ago at the Isle of Man TT, establishing a lap record that stood for many years. Ago fought back to win the next two races at Spa and the Sachsenring, then Hailwood beat the Italian at Brno by 17 seconds.

Hailwood crashed out at Imatra and led the way at Monza, until he was slowed by gearbox issues. H🍒e won agai🐭n at the season finale at Mosport in Canada, but it wasn't enough. Ago took the title with a second place finish.

In February 1968 Honda announced its withdrawal from all motorcycle Grand Prix classes to focus on development of seminal motorcycles like CB750 four as well as Formula 1 and the car market. The C𓂃B750 was the world's first superbike. It was launched in 1969, when Honda's annual motorcycle production reached 1.5 million units for the first time.