If you are looking into bike transport which will help you take your cycle long distances then there are plenty of options available. Some people will simply want to bag up their bike to protect it during a journey by road, but others will have grander travel plans in mind and so greater protection is needed.
For the most ambitions bike transport endeavours you may need to invest in bike bags for air travel. Companies like Evoc produce this type of bike travel bag. In general you will have to remove elements like the handlebars, wheels and pedals in order to get your bike into a travel bag that will then fit easily on a plane. However, these bespoke bicycle transport models can keep everything strapped down and secure throughout transit and will also be easier to take with you when you disembark from your flight thanks to integrated roller wheels like you would find on a standard suitcase.
If you have a folding bicycle then you will know how easy it is to take your cycle with you on the road or on public transport. However, if you want to prevent your bike transferring dirt or getting damaged then companies like Dahon produce simple carrying covers for folding bikes so that bicycle transport is as seamless as possible.
To carry individual elements of your bike with you it is possible to buy wheel bags from firms like SRAM and Zipp. As with any transport item it is useful to check that you are buying something which will fit with your particular bike and components to avoid disappointment.