I'm looking for a tire recommendation for our tandem. Its a road bike that I ride with my son. I'm 170 lbs. and he is 100 lbs. We are not a heavy team. Our longest rides are 50 miles or less. We are riding Panaracer Pasela's now and they are OK. I'm wondering if there is a better choice out there. Also, what tire width do you guys ride? Thanks.