Not too many answers addressing the original concerns
. A high quality bike should have few problems on board and not need any sort of bag or case if kept below when not used and a small amount of care given to it. People with scare stories about frames rusting are talking about low end or old style bikes and those mentioning folding bikes just don't know what biking is about
We have only carried bikes a few times on board and that for just weeks at a time, but very exposed with them lashed to the lifelines
. But we do have 7 mountain bikes in the garage
(my own bikes and my son's) and my son works in the bike industry so I have also had a chat with him before writing this post, therefore the following comments not just constructed from imagination. We also live on a windy surf beach so things are pretty salty and sandy even around our home (anyone want a window cleaning
A good bike will have a carbon fibre or a quality aluminium frame - if aluminium it will be of at least one of the higher grades of 6061 (boats are built of 6061 so it is fine) - corrosion
should not be a problem there. My son says they occasionally get warranty returns on aluminium framed mountain bikes that have been used on beaches a lot, generally bubbling of paint
where there has been paint
damage and the oxide reforming lifts the paint edge leading to wider paint failure. They refuse such warranty claims. Sand in components is a much bigger danger
though than salt
On a good bike there should be little else to worry too much about as it will all be generally be aluminium, stainless steel
or plastic or easy to look after.
, unless an old bike, brake rotors, etc should all be stainless steel
The chain will be steel as may be some fasteners, bushes and bearings, rear cassette, etc but in the end good bikes (especially mountain bikes) are made to be serviceable in the wet, through rivers and mud without running to rust or other corrosion
. In any event most of these parts
should be well lubricated regardless of environment
- general good care with greasing, keeping clean and spraying with silicon should take care of those just as one should be doing anyway. Chains especially will show a slight flush of rust even after degreasing and washing
but normal lube prevents that as does silicon spray.
Some components when worn, such as the steel stanchions used on cheaper front suspensions, will rust if the plating is worn though use but at that stage one will be at replacement time anyway. Similarly it is common for the likes of the inside of the socket heat screws used on stems (steering tube to handlebars piece), etc to show light rust after they have been adjusted a few times but not too many of these and are easily cared for.
These things will just need a little extra attention to care.
In the end I would have no problems with keeping my own bikes on board (in fact I had the locker door into one interior storage
area made big enough to do so when the boat was built) and carting them ashore in the dinghy
. I wouldn't consider any sort of bag or container necessary if kept below decks. Even bikes ashore appreciate a wash down with fresh water
(spray, not a jet) and I would do the same when water is accessable if kept on board - even putting it out in the rain. I have seen good bikes living on marina docks around here exposed to salt
spray, etc and they seem to stand up well.
Bikes with cheap
components, and especially the steel framed bikes which will have both cheap
components and a non corrosion resistant frame will be a problem for certain (even on land