Why? I don't race at 180rpm (which as as fast as I've ever pedalled on 100" gearing), I race at about 90rpm. At the moment, I'm hitting 118rpm average on 56/9 gearing for my 5 x 30s interval session, which is already some 30% higher cadence than I race at, hence the desire to raise the gearing further to get the training rpm closer to the racing rpm. If I want to spin against no resistance, I can always put my track bike on the rollers, geared for Calshot at 49/16
Why? I don't race at 180rpm (which as as fast as I've ever pedalled on 100" gearing), I race at about 90rpm. At the moment, I'm hitting 118rpm average on 56/9 gearing for my 5 x 30s interval session, which is already some 30% higher cadence than I race at, hence the desire to raise the gearing further to get the training rpm closer to the racing rpm. If I want to spin against no resistance, I can always put my track bike on the rollers, geared for Calshot at 49/16