Yokomo YZ-834B

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 The car was marketed in Europe, sold by Graupner, as the Graupner Dogfighter and in the US by Delta Systems, as the Delta Dogfighter.

As the YZ-834B required numerous upgrades and an investment of US$500 1986 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 1986 despite being offered with a Yokomo 05R stock motor and a mechanical speed controller.

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.

Ron Rossetti used this version of the car to win the 1986 ROAR 1:10 Off-Road National Championships.

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.

The YZ-834B was replaced by YZ-870C in 1987.