Bike laptop(s) for tandem | Highway Bike, Biking Boards

Are you saying you have been displaying gears in your present tandem? How?

There is not any GPS that gives twin screens. So you are going to want two models. You might do a pleasant giant navigation unit to your spouse.
And for you simply to see velocity particulars, there are low-cost models with normal bike particulars. Pace, Distance, Time, and so forth for $30 – $50

If you really want to see Di2 gear information as talked about above, I feel the LEZYNE Tremendous Professional is the most affordable unit that’ll try this. $150