Patent ID: 7758475

Claim:
An exercise equipment, comprising: a. a base frame comprising a front portion and a rear portion; b. a flywheel rotatably connected to the base frame; c. a crank assembly attached to the base frame, wherein the crank assembly comprises: i. a crankshaft housing; ii. a crankshaft housed inside the crankshaft housing; iii. a first and a second crank arm mounted on the crankshaft on opposite sides of the crankshaft housing; iv. a first and a second freewheel holder mounted on the crankshaft on opposite sides of the crankshaft housing and attached to the first and second crank arm, respectively; v. a first and a second freewheel mounted on the crankshaft on opposite sides of the crankshaft housing and coupled to the first and second freewheel holder, respectively, in a ratchet and pawl configuration to allow the first and second crank arms to drive the flywheel independently; vi. a chainring mounted on the crankshaft on one side of the crankshaft housing and fixedly attached to the second freewheel; and vii. a drive chain coupled to the chainring and the flywheel, wherein the first and second freewheels and the chainring are keyed to the crankshaft such that rotation of the crankshaft by the first or second crank arm in a first direction rotates the first or second freewheel, respectively, and the chainring, thereby allowing the first and second crank arms to independently turn the chainring to turn the drive chain and drive the flywheel; d. an indexing ring on a side opposite the chainring inserted between the crankshaft housing and the first freewheel, wherein the indexing ring is keyed to the crankshaft such that rotating the crankshaft rotates the indexing ring, wherein the indexing ring comprises an aperture; and e. a first and a second crank arm locking member insertable into the aperture, wherein the first and second crank arm locking members each have an engagement position and a disengagement position, wherein in the engagement position the first and second crank arm are immobilized relative to each other and in the disengagement position the first and second crank arms are independent of each other.