Classic Bike Challenge Francorchamps 2010 Yamaha 125cc V4 ex Bill Ivy & Phil Read

Ferry Brouwer from Yamaha Classic Racing Team is warming the engine from a copy of the Yamaha RA31A 125cc.
Engine and Type: Water-Cooled V4 Two-Stroke
Bore & Stroke: 35 mm x 32,4 mm
Capacity: 124,6cc
Induction: Rotary Disc Valve
Carburettor: Mikuni VM22
Ignition: Magneto/Transistor
Power Output: Over 42 bhp @ 17,400 rpm
Transmission: Dry Clutch 9 Speed
Weight: 95 kg

[@eslermanu47]

proper racing bike in the golden era

[@derf9465]

Imagine if 125 today we're this fast

[@burghill1979]

I can't understand why photos cant be allowed!!!! what a t----