Depends on the training, for endurance stuff in bunches with intermediate riders you'll find pushing a big gear quite fatiguing on the boards, try 86"-88" or so. For more quality training or sprints then you'll already know what gears to take ;) Or ask the coach prior to the session if you don;t know the other riders or the schedule.
Are you sure about that Guy?
Depends on the training, for endurance stuff in bunches with intermediate riders you'll find pushing a big gear quite fatiguing on the boards, try 86"-88" or so. For more quality training or sprints then you'll already know what gears to take ;) Or ask the coach prior to the session if you don;t know the other riders or the schedule.