Originally Posted by stapfam
Tyre pressures I always keep the same but this is higher than the pressure Recommended for that Tyre in any case. If I had a real heavyweight on the back then I would go to a Wider tyre and still over inflate- This would cause more drag but still be acceptable with a lighter rider on the rear.
Here is a link from Precision Tandems web site
http://www.precisiontandems.com/arttiresbymark.htm about tires and there is a chart for calculating tire pressure and formulas for tire pressure as a function of disproportionate tandem team weight.