We get asked all the time, do we repair bikes? We certainly do here at our location in Tempe, AZ. We can fix nearly any bike.
The beauty of a beach cruiser bike is the simplicity. Generally, keep ample tire pressure going and you are ready to ride. With Soul Beach Cruisers, we build a premium bike, but it is easy to maintain.
We choose hydraulic brakes because they have little to no maintenance. Brake pads wear out in perhaps 4-5 years of standard dry weather riding. If they get wet frequently, they will wear faster.
The Sturmey Archer SX-RK3 3 speed hub is low maintenance as well. It runs sealed bearings on the rotor side, and everything on the shifter side has seals to prevent contaminants from getting in there. Basically, adjust the shifter every once in a while and you are good to go. That is the only real adjustment you do mechanically to the bike. Everything else needs little attention.
Our chains are coated in several ways. Most of the chains are plated, with a specialty coating over the top to prevent rust. We run chrome chainrings and cogs, so only the tips of the teeth get wear and could show rust.
Keep good air pressure in all of your tires. When ample air pressure is maintained, you get less flat tires. On our fat tire bikes we try to keep 30 psi in them. Thinner tires go a bit higher, sometimes to 40.
We recommend a wax based chain lubricant such as White Lightning. This lasts longer, stays cleaner and is easy to apply.