Hub-center steering

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Hub-center steering (HCS) is one of several different types of front-end suspension/steering mechanisms used in motorcycles and cargo bicycles. Hub-center steering is characterized by the steering pivot points being inside the hub of the wheel, rather than above the wheel in the headstock as in the traditional layout. Most hub-center arrangements employ a swingarm that extends from the bottom of the engine/frame to the center of the front wheel.

Hub steering mechanisms are complex and have a number of theoretical advantages, but in practice often provide an inconsistent driving feel due to slack arising from the complex linkages. Although conventional forks have a number of theoretical weaknesses, it is, on the other hand, a more developed and mature system.