You can ride a bike from Chongqing University Town to Bishan, but it should be noted that this route needs to cross a long tunnel and needs to pass on foot, so it is impossible to ride.

The following are possible cycling routes:

1. From University Town to Bishan: Ride to the University Town subway station first, and then go straight along Bishan Tunnel to Bishan. The total length of the route is about 10 km, and the total length of the tunnel is 2.2 km, so it is necessary to push bicycles through.

2. From University Town to Chen Jiaqiao: Then ride from Chen Jiaqiao subway station to Qingmuguan, and then ride through Fulishu to Bishan. The total length of the route is about 20 kilometers, passing through rural and mountainous areas, which requires strong physical strength and endurance.

3. Other routes from the University Town to Bishan: You can also ride from the University Town to Shapingba, and then go straight along the 3 19 National Road to Bishan. The total length of the route is about 25 kilometers, passing through cities and villages, which requires strong physical strength and endurance.

No matter which route you choose, you need to be prepared in advance, including choosing the right bike, wearing comfortable sportswear and sneakers, and carrying enough water and food. At the same time, we should pay attention to traffic safety and road conditions, obey traffic rules and signals, and pay attention to road conditions and weather changes at any time.