Front Shimano 600 Tri-Colour / AeroSpoke. Front Wolber TX Profil Clincher 26x1" / Rear Aerospoke 26x1". Listing and template services provided by inkFrog. The item "52cm Schwinn Series 7 PDG Vintage Time Trial Bike" is in sale since Sunday, January 20, 2019. This item is in the category "Sporting Goods\Cycling\Bikes".pedlar" and is located in London. This item can be shipped worldwide.