"but on a standard engine, in gear under load it takes a while to rev the engine trough the range"

im not to far away from standard but i go from changing gear to limiter pretty quick tbh it do sent take awhile on mine untill about 70 mph its change gear hit limiter change gear hit limiter its not like it take time to climb

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Yamaha xt660x 2009 blue/gold mods= iridium plug, stage1+2, removed snorkel, blocked ais, akrapovric pipes, power commander pc3usb (pre made map), adjusted tps, dynojet 02 optimiser 30amp aux relay, smoked puig screen, oxford heated grips and brembo carbon ceramic pads, rfx 30mm bar raisers, puig long adjustable leavers, plus much more and a cheep �30 alarm which stopped it been stolen