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Yokomo YZ-834B "Dog Fighter" is a 1/10 scale electric-powered 4WD radio-controlled vehicle made by Yokomo. Introduced in 1983 for off-road racing, it has been cited by the website, LiveRC, as the first racing specific 4WD buggy[1] The car was marketed in Europe, sold by Graupner, as the Graupner Dogfighter[2][3][4] and in the US by Delta Systems, as the Delta Dogfighter.[5]
As the YZ-834B required numerous upgrades and an investment of US$500 (equivalent to $1,390 in 2023) to make it competitive, Yokomo introduced the mail-order only SE 4WD featuring a host of parts that made the car competitive straight out of the box for US$200 (equivalent to $555.92 in 2023) despite being offered with a Yokomo 05R stock motor and a mechanical speed controller.[6][3]
The RPS/Yokomo Dog Fighter SE was introduced following the 1985 IFMAR 1:10 Electric Off-Road World Championships win by Gil Losi Jr. The car was marketed by Ranch Pit Stop (hence RPS), a hobby retailer owned by Losi Jr's father; who later became known as Team Losi three years after.[7]
Ron Rossetti used this version of the car to win the 1986 ROAR 1:10 Off-Road National Championships.[8][9]
Despite its success in racing, including winning the aforementioned IFMAR Worlds, it was criticized for its low ground clearance, which meant it was unsuited to the UK racing.[10]
The YZ-834B was replaced by YZ-870C in 1987.
Year | Model | Details | Known issues |
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1983 | Dog Fighter 834B (not pictured)
Rare original release model with one shock absorber each end, exposed alloy roll bar, yellow wheels and black body pan. |
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1985 | Wonder Dog Fighter
(could be late 1984) |
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1985 | Wonder Dog Fighter Limited Edition |
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1986 | Wonder Dog Fighter SE - 834B SE |
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1986 | Dog Fighter RPS SE |
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