I bought a 10 foot length of 2" inner diameter ABS at ACE hardware for $7.00. At first I used a hacksaw to cut the pipe but I would always cut crooked and the cuts were rough. I borrowed a friends pipe cutter, measured out the width I wanted and started cutting. Made 50 tires in about an hour and the cuts were smooth. Still got about 5 feet of pipe left. I just put the tires in hot water for a few minutes and it made putting the tire on the rim easier, when it cools down its pretty tight dont even need to glue it. And I just found a few feet of PVC behind my house, gonna get started on that and see how it works.