ELF 500 ROC: Difference between revisions

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| image =
| image =
| aka =
| aka =
| manufacturer = [[ELF]]
| manufacturer = [[Elf Aquitaine|ELF]]
| production = [[1996]]-[[1997]]
| production = 1996-1997
| predecessor =
| predecessor =
| successor =
| successor =
| parent_company =
| parent_company =
| class = 500cc
| class = 500 cc
| engine = [[Swissauto]] [[Two-stroke cycle|two-stroke]] [[V4 engine|V4]] 500 [[cubic centimeter|cc]]
| engine = [[Swissauto]] {{Convert|499.3|cc|abbr=on}} [[Two-stroke cycle|two-stroke]] 108° [[V4 engine|V4]]
|bore_stroke = {{Convert|54|×|54.5|mm|abbr=on}}
|power = over {{Convert|160|hp|abbr=on}} @ 12,500 rpm
|torque =
| transmission =
| rake =
| trail =
| wheelbase ={{Convert|1410|mm|abbr=on}}
| length =
| width =
| seat_height =
| dry_weight ={{Convert|130|kg|abbr=on}}
| wet_weight =
| fuel_economy =
| fuel_capacity ={{cvt|34|L}}
| related =
| related =
| similar = [[Muz 500]]<br>[[Pulse 500]]
| similar = [[Muz 500]]<br>[[Pulse 500]]
}}
}}
The '''ELF 500 ROC''' was a motorcycle that competed in the {{MGP|1996}} and {{MGP|1997}} 500cc Road Racing World Championship.
The '''ELF 500 ROC''' was a motorcycle that competed in the {{MGP|1996}} and {{MGP|1997}} 500&nbsp;cc Road Racing World Championship.


== ELF 500 ROC ==
== ELF 500 ROC ==
A new European motorcycle made its debut under the Elf banner in 1996. The engine was a Swissauto 500cc [[Two-stroke cycle|two-stroke]] [[V4 engine|V4]] engine, designed as a compact and powerful unit which could be used in both [[sidecars|sidecar]] racing outfits and solo bikes. It utilised a single balance shaft and a 6 speed cassette-type gearbox. Its crankshaft design allowed for the engine to fire at different angles, allowing the rider to choose either "big-bang" or "screamer" engine characteristics. The engine was housed a frame designed by Serge Rosset's small ROC firm, based at Annemasse in France. The bike competed in the [[1996 Grand Prix motorcycle racing season|1996]] and [[1997 Grand Prix motorcycle racing season|1997]] 500cc World Championships.
A new European motorcycle made its debut under the [[Elf Aquitaine|Elf]] banner in 1996. The engine was a Swissauto 500&nbsp;cc [[Two-stroke cycle|two-stroke]] [[V4 engine]], designed as a compact and powerful unit which could be used in both [[sidecars|sidecar]] racing outfits and solo bikes. It utilised a single balance shaft and a 6-speed cassette-type gearbox. Its [[crankshaft]] design allowed for the engine to fire at different angles, allowing the rider to choose either [[big-bang firing order|"big-bang"]] or "screamer" engine characteristics. The engine was housed in a frame designed by Serge Rosset's small ROC firm, based at [[Annemasse]] in [[France]]. The bike competed in the [[1996 Grand Prix motorcycle racing season|1996]] and [[1997 Grand Prix motorcycle racing season|1997]] 500&nbsp;cc World Championships.


===1996===
===1996===
⚫
Sponsored by soft drink giant Pepsi, the team consisted of [[Adrian Bosshard]] and [[Juan Borja (motorcycle racer)|Juan Borja]]. Over the course of the season [[William Costes]] stood in for Bosshard, [[Chris Walker (motorcycle racer)|Chris Walker]] later replaced Bosshard, and [[Marti Craggill]] stood in for Walker at the final round. At its debut race in Malaysia, Borja scored an impressive 10th place. The bike would go on to record 8 point-scoring finishes out of 15 races, its highest placing being that of 8th by Borja at [[1996 British motorcycle Grand Prix|Donington Park]]. The motorcycle proved fast but unreliable as it notched up a string of non-finishes. Borja finished the season on 34 points, Walker on 2 points.
Sponsored by soft drink giant Pepsi, the team consisted of [[Adrian Bosshard]] (SWI) and [[Juan Borja]] (SPA).
⚫
Over the course of the season [[William Costes]] (FRA) stood in for Bosshard, [[Chris Walker (motorcycle racer)|Chris Walker]] (GBR) later replaced Bosshard, and [[Marti Craggill]] (AUS) stood in for Walker at the final round. At its debut race in Malaysia, Borja scored an impressive 10th place. The bike would go on to record 8 point-scoring finishes out of 15 races, its highest placing being that of 8th by Borja at Donington. The motorcycle proved fast but unreliable as it notched up a string of non-finishes. Borja finished the season on 34 pts, Walker on 2 pts.


===1997===
===1997===
Borja remained in the team, and was joined by new teammate [[Jurgen Fuchs]] (GER). Reliability was still a concern but there was improvement and the bikes finished 13 times in the points – 6 times inside the Top 10. Its highpoint came in Brazil, with Fuchs scoring a best finish of 6th. Borja finished the season on 37 pts, Fuchs on 28 pts.
Borja remained in the team, and was joined by new teammate [[Jürgen Fuchs (motorcyclist)|Jürgen Fuchs]]. Reliability was still a concern but there was improvement and the bikes finished 13 times in the points – 6 times inside the Top 10. Its highpoint came in [[1997 Brazilian motorcycle Grand Prix|Brazil]], with Fuchs scoring a best finish of 6th. Borja finished the season on 37 points, Fuchs on 28.


The ELF team ceased GP competition at the end of 1997, but the bikes returned to the grid in 1998 in the form of the [[Muz 500]].
The ELF team ceased GP competition at the end of 1997, but the bikes returned to the grid in 1998 in the form of the [[Muz 500]].
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|-
|-
| Engine Type:
| Engine Type:
| 2 stroke water cooled V4
| 2-stroke water-cooled V4
|-
|-
| Displacement:
| Displacement:
| 499.27cc
| 499.27&nbsp;cc
|-
|-
| Max Power:
| Max Power:
Line 50: Line 63:
|-
|-
| Transmission:
| Transmission:
| 6 speed cassette type
| 6-speed cassette type
|-
|-
| Final Drive:
| Final Drive:
Line 68: Line 81:
|-
|-
| Brake System:
| Brake System:
| Front: Carbon composite disc (320mm), Nissin 4 pot calipers<br>Rear: steel disc (220mm)
| Front: Carbon composite disc (320&nbsp;mm), Nissin 4 pot calipers<br>Rear: steel disc (220&nbsp;mm)
|-
|-
| Overall Length:
| Overall Length:
| 2040&nbsp;mm
| 2040mm
|-
|-
| Overall Width:
| Overall Width:
| 490&nbsp;mm
| 490mm
|-
|-
| Wheelbase:
| Wheelbase:
| 1410&nbsp;mm
| 1410mm
|-
|-
| Weight:
| Weight:
| 129kg (without tank)
| 129&nbsp;kg (without tank)
|-
|-
| Fuel Tank:
| Fuel Tank:
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|-
|-
|}
|}

==See also==

*[[Honda NSR500]]
*[[Aprilia RSW-2 500]]
*[[Cagiva C593]]
*[[Suzuki RGV500]]
*[[Yamaha YZR500]]
*[[Paton PG500RC]]
*[[Sabre V4]]


==External links==
==External links==
*[http://www.europark.com/machines/ny-elf500_1996.htm Specs for the 1996 ELF 500]
*[https://web.archive.org/web/20070614145424/http://europark.com/machines/ny-elf500_1996.htm Specs for the 1996 ELF 500]
*[http://www.swissauto.com/e/projekte.e/projektbeschrieb.e.jsp?ID_Display=20000B Official Swissauto site]
*[http://www.swissauto.com/e/projekte.e/projektbeschrieb.e.jsp?ID_Display=20000B Official Swissauto site]
*[http://www.andy-wuthrich.com/12803.html Website of Andreas Wuthrich, 500cc Project Manager at Swissauto]
*[https://web.archive.org/web/20070928145218/http://www.andy-wuthrich.com/12803.html Website of Andreas Wuthrich, 500&nbsp;cc Project Manager at Swissauto]


[[Category:Grand Prix motorcycles]]
[[Category:Grand Prix motorcycles]]

[[it:Team Elf]]

Latest revision as of 04:38, 2 October 2021

ELF 500 ROC
ManufacturerELF
Production1996-1997
Class500 cc
EngineSwissauto 499.3 cc (30.47 cu in) two-stroke 108° V4
Bore / stroke54 mm × 54.5 mm (2.13 in × 2.15 in)
Powerover 160 hp (120 kW) @ 12,500 rpm
Wheelbase1,410 mm (56 in)
Weight130 kg (290 lb) (dry)
Fuel capacity34 L (7.5 imp gal; 9.0 US gal)

The ELF 500 ROC was a motorcycle that competed in the 1996 and 1997 500 cc Road Racing World Championship.

ELF 500 ROC[edit]

A new European motorcycle made its debut under the Elf banner in 1996. The engine was a Swissauto 500 cc two-stroke V4 engine, designed as a compact and powerful unit which could be used in both sidecar racing outfits and solo bikes. It utilised a single balance shaft and a 6-speed cassette-type gearbox. Its crankshaft design allowed for the engine to fire at different angles, allowing the rider to choose either "big-bang" or "screamer" engine characteristics. The engine was housed in a frame designed by Serge Rosset's small ROC firm, based at Annemasse in France. The bike competed in the 1996 and 1997 500 cc World Championships.

1996[edit]

Sponsored by soft drink giant Pepsi, the team consisted of Adrian Bosshard and Juan Borja. Over the course of the season William Costes stood in for Bosshard, Chris Walker later replaced Bosshard, and Marti Craggill stood in for Walker at the final round. At its debut race in Malaysia, Borja scored an impressive 10th place. The bike would go on to record 8 point-scoring finishes out of 15 races, its highest placing being that of 8th by Borja at Donington Park. The motorcycle proved fast but unreliable as it notched up a string of non-finishes. Borja finished the season on 34 points, Walker on 2 points.

1997[edit]

Borja remained in the team, and was joined by new teammate Jürgen Fuchs. Reliability was still a concern but there was improvement and the bikes finished 13 times in the points – 6 times inside the Top 10. Its highpoint came in Brazil, with Fuchs scoring a best finish of 6th. Borja finished the season on 37 points, Fuchs on 28.

The ELF team ceased GP competition at the end of 1997, but the bikes returned to the grid in 1998 in the form of the Muz 500.

ELF 500 ROC Specifications
Engine Type: 2-stroke water-cooled V4
Displacement: 499.27 cc
Max Power: 160 + BHP
Carburation Type: 4 Dell Orto VHSB35 flat valve carbs
Ignition: CDI digital
Clutch: Dry multiple discs
Transmission: 6-speed cassette type
Final Drive: Chain
Frame Type: Twin spar aluminum
Suspension: Front: Inverted telescopic forks
Rear: Ohlins mono shock
Tyres: Michelin
Wheel: Front: 3.5 x 17 inches
Rear: 6.0 x 17 inches
Brake System: Front: Carbon composite disc (320 mm), Nissin 4 pot calipers
Rear: steel disc (220 mm)
Overall Length: 2040 mm
Overall Width: 490 mm
Wheelbase: 1410 mm
Weight: 129 kg (without tank)
Fuel Tank: 35L

See also[edit]

External links[edit]

Retrieved from "https://en.wikipedia.org/w/index.php?title=ELF_500_ROC&oldid=1047700715"