"Ir en el autobús del venado" means "to go on the deer bus"
How you say "Bus ride" in Spanish is "El viaje en autobús".
Both are all right to say, but most people will say on; for example:"I'm riding on the bus.""I'm getting on the bus right now.""She get on the bus last night."
Strictly speaking, you would ride "in the bus" because to be "on the bus" would mean that you are on the roof. However, people often say that they ride on the bus when they mean that they are sitting or standing inside it.
Bus = El autobús
venado, ciervo
venado; ciervo
All it is in spanish is, Autobús escolar.
You would say "ciervo" or "venado".
Montar a caballo.
autobus municipal/urbano
You can say "Voy a montarlo duro."
Estoy muy emocionado de montar en la bicicleta would be the best way to say "I am excited to ride on your bike" in Spanish.