Yamaha YX600 Radian

YX600 Radian
ManufacturerYamaha Motor Company
Parent companyYamaha
Production1986 — 1990
ClassNaked bike (standard)
Engine598cc, air-cooled, DOHC, inline-4
Top speed125 mph (201 km/h)[1]
Power66 hp (49 kW)@ 9,500rpm (claimed)[1]
56 hp (42 kW)@ 9,500rpm (rear wheel)[1]
Torque38 lb⋅ft (52 N⋅m) @ 7,500 rpm (claimed)[2]
Wheelbase54.7 in (1,390 mm)
Weight198 kg (436 lb)[1] (wet)
Fuel capacity12 L; 2.7 imp gal (3.3 US gal)
Oil capacity2,200 ml (2.3 US qt)
Fuel consumption4.9 L/100 km; 58 mpg‑imp (48 mpg‑US)


The YX600 Radian is a sport/touring motorcycle manufactured by the Yamaha Motor Company between the years of 1986–1990. Except for the suspension, the rest of the Radian was a parts-bin motorcycle and came equipped with a slightly detuned for mid and low-end torque version of air-cooled, inline-4 which came from the Yamaha XJ600 that was also along with the Radian used in the Yamaha FZ-600 Sport Motorcycle (precursor of Yamaha's FZR series of performance bikes), as well as smaller carburetors and frame from the 550 Maxim.[1][2] Cycle World obtained for the Radian a 1/4 mi. time of 12.76 @ 103.8 mph (167.0 km/h) and 0 to 60 mph (0 to 97 km/h) acceleration at 3.8 seconds.

  1. ^ a b c d e "The Yamaha YX600S Radian". Motorcycle Classics. July–August 2009. Retrieved July 16, 2017.
  2. ^ a b "Yamaha YX600 Radin". Cycle World. January 1986. Retrieved January 17, 2018.