MCN - Motorcycle News Posted May 25, 2011 Report Share Posted May 25, 2011 Aprilia's new four-stroke RS4 125 will come with an optional quickshifter priced at £99, the Italian firm has announced. Offering the "fun and involvement of split-second clutchless upshifting on a 125cc motorcycle", the move mimics the raft of WSB-grade technology...More... Quote Link to comment Share on other sites More sharing options...
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