Buses are usually not covered (only railreplacement buses of the Railcompanies and few exception like the Austrian IC Bus or the Buses in North Finland / North Sweden)

You may consider to use in the Month of June,July,August the 9€ ticket
for 9€ you get one month free travel on all public transport within Germany (excluded IC,ICE,EC,ECE,Nighttrain).

If you can take your bicycle with you or not is bestway asked directly with the Buscompany (In germany only very few bus services in tourist regions offer the possibilty to carry your bicycle )

Wanted to write exactly same, but there was a sudden breakdown. Zuidafrikaanders van Sarie Mareis?

Again a ultra-quick google showed all results; MVVG bus, line 77, ev 2 hrs, a few less buses on sat/sun, and the readily given timetable shows a bike symbol, saying that bikes CAN be taken on board-in very limited quantity (that will likely be the place where prams/strollers/wheelchairs etc stand-so max of 2 seems appropriate.