September 10, 2010
Rivara JK50R
£699
NEWItalian-made Kids' motocrosser.
Not to be confused with ultra-cheap Chinese 'pit bikes'.
The JK50R is not a toy. This is a performance motorcycle with around 10bhp power output.
Also available: JK50S (less-powerful engine and drum rear-brake) at only £599.
Engine capacity: 49cc
Single cylinder, 2 stroke
Auto transmission
2 stroke single cylinder engine. light alloy cylinder with highly diamentioned 5 scavenge ports, chromium plated liner and carbon fibre reed valve
displacement: 49cc
bore x stroke(mm): 39 x 41.7
compression ratio: 10.8:1
carburettor: Dell'Orto PHBL024
electronic ignition
kick starter
single speed with automatic centrifugal clutch
Giannelli exhaust system with carbon fibre muffler
single beam steel frame
front suspension: hydraulic telescopic fork Marzocchi magnum 32mm dia
seat height: 64cm
wheel base: 94cm
10" wheels
disc brakes
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