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An exercise machine, such as indoor cycle, includes a multi-function wheel brake actuator. A braking force is induced on a wheel by finely or coarsely adjusting the brake actuator. The brake actuator may include a knob whereby a user may finely adjust the braking force on the wheel and a lever to ac

An exercise machine, such as indoor cycle, includes a multi-function wheel brake actuator. A braking force is induced on a wheel by finely or coarsely adjusting the brake actuator. The brake actuator may include a knob whereby a user may finely adjust the braking force on the wheel and a lever to actuate interval settings whereby the brake actuator provides set positions of braking resistance. The lever may include a spacer to reduce friction of the lever. The exercise machine may further include a pop-pin assembly with an over-center cam mechanism to clamp members together. The pop-pin assembly also includes a fine adjustment to adjust the clamping force. Implementations of the pop-pin assembly may be arranged to apply the clamping force by pivoting a lever of the pop-pin assembly either toward or away from the members being fixed.

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1. An exercise machine comprising: a frame supporting a rotating member;a resistance element moveable between at least a first resistance element position and a second resistance element position, the first resistance element position associated with a first resistance on the rotating member and the

1. An exercise machine comprising: a frame supporting a rotating member;a resistance element moveable between at least a first resistance element position and a second resistance element position, the first resistance element position associated with a first resistance on the rotating member and the second resistance element position associated with a second resistance on the rotating member, the second resistance being different than the first resistance; anda resistance adjustment assembly comprising: a shaft coupled to the resistance element and translatable relative to the frame between a first shaft position and a second shaft position, the first shaft position corresponding to the first resistance element position and the second shaft position corresponding to the second resistance element position; anda lever assembly operably coupled with the shaft, the lever assembly independently rotatable from the shaft between a first lever position and a second lever position to translate the shaft between the first shaft position and the second shaft position. 2. The exercise machine of claim 1, wherein the shaft is independently rotatable from the lever assembly and such independent rotation of the shaft translates the shaft relative to each of the frame and the lever assembly. 3. The exercise machine of claim 1, wherein the shaft is independently translatable from the lever assembly in a first direction. 4. The exercise machine of claim 1, wherein the shaft is biased in a second direction opposite the first direction. 5. The exercise machine of claim 1, wherein the resistance element comprises at least one of a magnetic resistance element or a frictional resistance element. 6. The exercise machine of claim 1, wherein the rotating member is a wheel of the exercise machine. 7. The exercise machine of claim 1, wherein the resistance adjustment assembly further comprises a member operatively fixed relative to the frame and including a plurality of surfaces longitudinally offset relative to each other, the lever assembly further comprises at least one projection, in the first lever position the at least one projection abuts a first surface of the plurality of surfaces, and in the second lever position the at least one projection abuts a second surface of the plurality of surfaces. 8. An exercise machine comprising: a frame supporting a wheel;a brake arm pivotally coupled with the frame and moveable between at least a first position and a second position, the brake arm including at least one resistance element positioned proximate the wheel, and the first position associated with a first braking force on the wheel and the second position associated with a second braking force on the wheel, the second braking force greater than the first braking force; anda brake arm adjustment assembly comprising: a housing coupled with the frame, the housing translationally and rotatably supporting a shaft;a member operably fixed relative to the housing, the member defining a first surface separated from a second surface by a distance relating to a separation between the first position and the second position;a lever assembly including at least one projection, the lever assembly moveable relative to the housing to selectively move the at least one projection from engaging the first surface to engaging the second surface; anda spacer disposed between the lever assembly and the shaft, the lever assembly abutting the spacer and rotatable about the spacer,wherein movement of the lever assembly causes the shaft to translate the distance separating the first surface and the second surface and move the brake arm from the first position, associated with the first surface, to the second position, associated with the second surface. 9. The exercise machine of claim 8, wherein the spacer is interlocked with the member such that the spacer is rotationally fixed relative to the member. 10. The exercise machine of claim 9, wherein the spacer is translatable relative to the member when interlocked with the member. 11. The exercise machine of claim 9, wherein the member comprises at least one first boss and the spacer comprises at least one corresponding second boss, the interlocking resulting from mating of the at least one first boss with the at least one second boss. 12. The exercise machine of claim 8, wherein the housing defines a slot and the spacer comprises a tab disposed within the slot such that the spacer is rotationally limited by the slot. 13. The exercise machine of claim 8, further comprising a lateral support coupled to the shaft and abutting a distal face of the spacer. 14. The exercise machine of claim 8, wherein the spacer comprises a cylindrical body and a spacer flange extending outwardly from the cylindrical body, the spacer flange abutting a distal surface of the lever assembly. 15. The exercise machine of claim 8, wherein the housing defines a tab and the housing defines a slot within which the tab is disposed, the tab rotationally fixing the member relative to the housing. 16. The exercise machine of claim 8, further comprising a biasing element biasing the member into the lever assembly. 17. An exercise apparatus comprising: a first member;a frame comprising a second member, the first member moveably supported by the frame relative to the second member; anda locking assembly coupled with the second member, the locking assembly comprising: a shaft including an engagement portion positioned to engage the first member to fix the first member relative to the second member;a cam roller coupled to the shaft;a drive shaft defining a passage receiving the shaft, the shaft adjustably supported within the passage such that the shaft is translatable within the passage relative to the drive shaft; anda lever defining a cam slot and coupled to the drive shaft by insertion of the cam roller into the cam shaft, the lever pivotally supported by a pivot axle such that the lever is pivotal between a first lever position where the drive shaft is driven toward the first member to fix the first member relative to the second member and a second lever position where the drive shaft is released from driving the first member such that the first member may be moved relative to the second member. 18. The exercise apparatus of claim 17, wherein the cam roller and the cam slot are disposed between the pivot axle and the second member such that the lever is pivotal from the first position to the second position by pivoting the lever toward the second member. 19. The exercise apparatus of claim 17, wherein the pivot axle is disposed between the second member and the cam roller and cam slot such that the lever is pivotal from the first position to the second position by pivoting the lever away from the second member. 20. The exercise apparatus of claim 17, wherein the engagement portion includes at least one of a pin shaped to be received by a corresponding hole of the second member when the lever is in the first lever position or a collar adapted to apply pressure against the second member to frictionally engage the second member to the first member when the lever is in the first lever position.