No, not all motorcycles have exposed chains. The type of chain and its visibility on a motorcycle can vary depending on the design and purpose of the bike. Here are some common types of motorcycle chains and their visibility:
Exposed Chains: Many motorcycles, especially those in the off-road, dual-sport, or cruiser categories, have exposed chains. These chains are often visible on the rear part of the motorcycle, running from the engine to the rear wheel. They are typically covered by a chain guard or chain case to protect them from debris and provide some level of safety.
Enclosed Chains: Some motorcycles, particularly sport bikes or touring motorcycles, use enclosed or fully covered chains. Enclosed chains are housed within a protective casing or chain guard, which helps prevent dirt and debris from accumulating on the chain, reduces the risk of chain-related accidents, and requires less maintenance compared to exposed chains. These types of chains provide a sleeker appearance and are often quieter than exposed chains.
Belt Drive: Instead of using a chain, certain motorcycles, especially cruisers and some modern sport bikes, use a belt drive system. Belt drives are low maintenance, operate quietly, and do not require lubrication like chains. They are covered by a belt guard or casing.
Shaft Drive: Another alternative to chain drive is a shaft drive system. Motorcycles equipped with shaft drives have a driveshaft that transmits power from the engine to the rear wheel. This system eliminates the need for chains or belts and requires minimal maintenance. Shaft drives are commonly found on touring bikes and some cruisers.
It's important to note that the specific design and features of a motorcycle can vary greatly across different models and manufacturers. Therefore, it's always advisable to refer to the manufacturer's specifications or consult the owner's manual of a particular motorcycle to determine the type of drivetrain system and whether the chain is exposed or enclosed.