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| The new '81 has the Alpha range styling details
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Ripmax have just announced the launch of a new O.S. engine - the FSá-81 four-stroke. The FSá-81 is a direct replacement for the FS-70 Surpass II, offering greater power and throttle precision in a compact and lightweight design. The crankcase mounting dimensions allow the FSá-81 to slot into the same mount as an FS-70S II would for an instant power upgrade.
The new F-5030 silencer is "very effective", thanks to its internal baffle and carefully matched internal volumes and passages. The design allows a huge range of outlet positions to accommodate almost every model.
The latest 60RA carburettor now features a 'constant velocity' inlet for improved throttle response and reduced spitting.
Datafile
Displacement: 13.26cc 0.809cu.in.
Bore: 27.7mm 1.091in.
Stroke: 22.0mm 0.866in.
Weight: 556g 19.63oz
Power Output: 1.3ps/11,000r.p.m.
Practical RPM: 2,200~12,000
RRP: £224.99.
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