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// Workers AI · dad joke modeWhat did the Honda RC164 say? "I'm revving to go.

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From Wikipedia, the free encyclopedia

Honda RC164
Honda RC164 at the 2014 Goodwood Festival of Speed
ManufacturerHonda
Production1964
PredecessorHonda RC163
SuccessorHonda RC165
Engine249 cc (15.2 cu in) air cooled DOHC inline 4
Bore / stroke44 mm × 41 mm (1.7 in × 1.6 in)
Power48 bhp (36 kW) @ 14,000 rpm
Ignition typeMagneto
Fuel delivery4 Keihin carburettors
TransmissionMulti-plate dry clutch, 6 speed gearbox, chain drive
Frame typeOpen double loop
SuspensionF: telescopic forks
R: swinging arm
BrakesDrum brakes front & rear
Footnotes / references
[1]

The Honda RC164 is a 250 cc (15 cu in) air cooled DOHC inline 4 racing motorcycle that was manufactured by Honda in 1964 to compete in the 250cc World Championship. It was the last of a line of four cylinder 250s that were derived from the 1959 Honda RC160.

History

[edit]

Honda had first entered GP racing in 1959 and by 1962 were dominating the 250 cc class.[2] Yamaha was improving its RD56 and was quicker than the Honda, The existing inline 4 was at the limit of its development.[3] Honda started working secretly on a new model to restore their dominance in the class.[4] The engineer put in charge of the project was 24 year old Shoichiro Irimajiri,[5][a] Design started in January 1964 on a new inline 6.[9] A development of the 4, the RC164, which was lower and lighter than the previous model, was to be used until the six was ready.[10]

Jim Redman, Luigi Taveri and Isamu Kasuya were the works riders for 1964.[11] Tommy Robb[b] and Kunimitsu Takahashi were also to have ridden the bike but had their contracts terminated early in the year.[12]

Honda didn't attend the opening race of the season at Daytona. At the next round at the Montjuïc Circuit, Spain Tarquinio Provini on the four cylinder DOHC Benelli was surprisingly faster than both the Honda and the Yamaha of Phil Read.[13]

At the French GP Redman and Read battled for the lead, the lead changing several times until Redman's bike went onto two cylinders and he had to retire.[14]

2RC164

[edit]

Honda updated the RC164 for the Isle of Man TT. The new bikes, designated 2RC164, produced 50 bhp (37 kW) and were lighter. Every component on the bikes that could be lightened had been. Three bikes were made, one each for Redman, Taveri and Kasuya. Redman won the race despite having an oil leak on the last circuit which sprayed oil of the back wheel causing the bike to slide in left hand corners.[11]

At Assen Read lead until the last corner when Redman dived inside him and the two had a drag race to the finish line. Redman won by less than a wheel's length. The next race was at Spa. Read was leading Redman by inches until the fast Masta Kink where Read's Yamaha seized. Taking avoiding action, Redman left the track at 130 mph (210 km/h). Whilst Redman was trying to get back on track Mike Duff on the other Yamaha took the lead. Duff won the race with Redman second.[14]

In West Germany Redman led until the last lap when Read overtook him and took the win. Mike Hailwood, in his only appearance of the season in the 250 class, led the East German GP on an MZ until he came off. As the following riders took avoiding action Redman took the lead. Read followed closely until the closing laps when he overtook Redman. On the final corner Redman drew level but Read out accelerated him to the line. Read won again in Ulster in wet conditions.[14]

With Read leading championship, Honda sent the new 6 cylinder bike to Monza although it was not fully developed. Only one machine was sent for Redman. In the race Redman led until the bike started to overheat and he had to back off. Redman finished the race third[15] and Taveri on a 2RC164 sixth.[16]

At the season finale at Suzuka Redman had an updated version of the 6 cylinder machine, the Honda RC165, which he took to victory[17] with Kasuya second on the four cylinder bike.[16] Although Redman had 58 championship points to Read's 50, only the best 6 results counted and Read took the championship.[17]

Racing results

[edit]

Points were awarded to the top six finishers in each race. Only the best six races were counted.

Position  1st   2nd   3rd   4th   5th   6th 
Points 8 6 4 3 2 1
Year Rider Model 1 2 3 4 5 6 7 8 9 10 11 Points Rank Wins
1964 Federation of Rhodesia and Nyasaland Jim Redman RC164 USA
-		 ESP
2		 FRA
NC		 36 2nd 2
2RC164 IOM
1		 NED
1		 BEL
2		 GER
2		 DDR
2		 ULS
2
3RC164 NAT
3
RC165 JPN
1
Switzerland Luigi Taveri RC164 USA
-		 ESP
NC		 FRA
2		 11 6th 0
2RC164 IOM
NC		 NED
-		 BEL
-		 GER
6		 DDR
-		 ULS
NC		 NAT
6		 JPN
4
Japan Isamu Kasuya RC164 USA
-		 ESP
4		 FRA
-		 10 7th 0
2RC164 IOM
NC		 NED
-		 BEL
6		 GER
DNQ		 DDR
-		 ULS
-		 NAT
-		 JPN
2
Sources: [16]
ColourResult
GoldWinner
SilverSecond place
BronzeThird place
GreenPoints classification
BlueNon-points classification
Non-classified finish (NC)
PurpleRetired, not classified (Ret)
RedDid not qualify (DNQ)
Did not pre-qualify (DNPQ)
BlackDisqualified (DSQ)
WhiteDid not start (DNS)
Withdrew (WD)
Race cancelled (C)
Blank Did not practice (DNP)
Did not arrive (DNA)
Excluded (EX)

Bold – Pole
Italics – Fastest Lap

Notes

[edit]
  1. ↑ Irimajiri also designed the twin cylinder 50 cc RC115, five cylinder RC148 and worked on the RA270 Formula 1 engine.[6] Irimajiri later led the design teams for the Gold Wing[7] and CBX.[8]
  2. ↑ Robb became a works Yamaha rider for 1964 after his departure from Honda.[12]

References

[edit]
  1. ↑ Kortekaas.
  2. ↑ "Honda RC166: reviviendo una vieja gloria de seis cilindros y un cuarto de litro" [Honda RC166: Reviving an old glory of a quarter-liter six-cylinder]. Blog de Seminuevos.com (in Spanish). 18 March 2015. Retrieved 8 May 2026.
  3. ↑ Cameron 2017.
  4. ↑ "Musica celestial. Honda RC166 250/350cc 4t, 6 cilindros" [Heavenly music. Honda RC166 250/350cc 4-stroke, 6-cylinder] (in Spanish). Retrieved 8 May 2026.
  5. ↑ Frank 2012.
  6. ↑ Oxley 2023.
  7. ↑ "Hondas in Japan/From Torture To The Turbo". Adventure Rider. 25 September 2023. Retrieved 12 May 2026.
  8. ↑ "Honda CBX1000 | A retrospective". MCNews. 10 December 2004. Retrieved 12 May 2026.
  9. ↑ Martin 2018.
  10. ↑ Walker 2002, p. 44.
  11. 1 2 Richardson 2024.
  12. 1 2 Walker 2002, p. 37.
  13. ↑ Pereira 2014, p. 45.
  14. 1 2 3 Pereira 2014, p. 46.
  15. ↑ Pereira 2014, pp. 46, 47.
  16. 1 2 3 "1964" (PDF). pilotegpmoto.com. Archived from the original (PDF) on 30 May 2024. Retrieved 25 May 2026.
  17. 1 2 Pereira 2014, p. 47.

Bibliography

[edit]
Retrieved from "https://en.wikipedia.org/w/index.php?title=Honda_RC164&oldid=1361363507"