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Yamaha RD125LC

Yamaha RD125LC

Yamahas RD125LC was the bike to have for the most mid 1980’s 17 year olds. Our UK bikes were restricted to 12BHP. The rest of the world got full YPVS on the mark two version – Giving 22+ BHP. Our mark two kept the mark one engine, Later mark three UK bikes got the YPVS barrel, but blocked off. Pick of the bunch is the 1GU specification bike.

Full YPVS – Giving 22BHP & torque to match. This gives a proper bike feel to the nimble chassis & was bought in other markets as a nippy commuter bike, not restricted learner, The RD125LC is a well-proportioned & stylish ‘80’s icon. We love them!



Type – Liquid-cooled, reed-valve, two-stroke single
Capacity – 123cc
Bore X Stroke – 56 x 50 mm
Compression Ratio – 6.4:1
Ignition – 12V electronic CDI
Fuel System – 1 x Mikuni VM24SS

Primary/Final Drive – Gear / Chain
Clutch – Wet, Multiplate
Gearbox – Six Speed


Frame – Tubular steel double cradle
Front Suspension – 33mm rwu, telescopic forks
Rear Suspension – Box-section swingarm, cantilever monocross suspension, adj. preload.
Front Brake – 1 x 245mm disc, single-piston sliding caliper
Rear Brake –  1 x 150mm drum
Front Tyre – 80/100 16
Rear Tyre – 90/90 18


Dry Weight – 98kg (216lb)
Wheelbase – 1275mm (50.2”)
Seat Height – 755mm (29.7”)
Fuel Capacity – 13 Litres (2.86 Gallons)


Top Speed – 89mph
Claimed Power – 21 bhp@9500 rpm (d/res)
Claimed Torque – 11.8 lb.ft@9250 rpm(d/res)
Fuel Consumption – 43 mpg
Price New When Built – £819 (1983)