Trek released the Active Braking Pivot (ABP) in late-2007. The ABP system uses a rear pivot concentric to the rear axle, and the brake is mounted on the seatstay. This allows the suspension to pivot freely under braking, without brake-induced suspension stiffening (sometimes called brake jack). Other suspension systems (FSR, VPP, Maestro) do the same thing with a different set-up (see above).
Trek also introduced a Full Floater system to go along with the ABP. The Full Floater system mounts the rear shock to two moving points in the suspension (rocker link and an extension of the chainstay). Other systems mount the shock to one end on the swing-arm, and the other to a fixed mount on the frame. This means as one part of the suspension compresses the shock, the other end of the shock moves as well. This allows Trek engineers more freedom to more accurately and precisely tune the system's leverage ratio.
The significance of ABP and Full Floater is that while other designs focused on the highly over-hyped axle path, Trek's innovation addressed brake-induced suspension movement and shock leverage ratio -- areas that improve performance.
The "Monolink" made by Maverick Bikes uses 3 pivot points and place the bottom bracket on a floating linkage between the front and rear triangle. It was designed by Paul Turner. The monolink design is unique in that is uses a shock body that is integrated into the rear triangle, and that the saddle to bottom bracket distance changes as the suspension is compressed, although not as large as a URT design. The suspension is more active when in the saddle, as pressure on the cranks actively works against the suspension. However, because of this property, there is less bob in out of the saddle sprints. The monolink design is also unique in having a rearward axle path, which is similar to the angle of attack of the front suspension. Examples are the Maverick ML7/5, ML8, Klein Palomino, and Seven Duo.
The "Equilink" suspension system was developed by Felt Bicycles for their full suspension line. The system is a "four bar" suspension with 2 pivots behind the bottom bracket and 2 behind the seat tube. The key feature of the system is an "equilink bar" that connects the upper pivot link and the lower pivot link. Felt contends that this system "equalizes" movement of the suspension in response to pedalling forces by linking the motion of the upper and lower linkages.
Trek also introduced a Full Floater system to go along with the ABP. The Full Floater system mounts the rear shock to two moving points in the suspension (rocker link and an extension of the chainstay). Other systems mount the shock to one end on the swing-arm, and the other to a fixed mount on the frame. This means as one part of the suspension compresses the shock, the other end of the shock moves as well. This allows Trek engineers more freedom to more accurately and precisely tune the system's leverage ratio.
The significance of ABP and Full Floater is that while other designs focused on the highly over-hyped axle path, Trek's innovation addressed brake-induced suspension movement and shock leverage ratio -- areas that improve performance.
The "Monolink" made by Maverick Bikes uses 3 pivot points and place the bottom bracket on a floating linkage between the front and rear triangle. It was designed by Paul Turner. The monolink design is unique in that is uses a shock body that is integrated into the rear triangle, and that the saddle to bottom bracket distance changes as the suspension is compressed, although not as large as a URT design. The suspension is more active when in the saddle, as pressure on the cranks actively works against the suspension. However, because of this property, there is less bob in out of the saddle sprints. The monolink design is also unique in having a rearward axle path, which is similar to the angle of attack of the front suspension. Examples are the Maverick ML7/5, ML8, Klein Palomino, and Seven Duo.
The "Equilink" suspension system was developed by Felt Bicycles for their full suspension line. The system is a "four bar" suspension with 2 pivots behind the bottom bracket and 2 behind the seat tube. The key feature of the system is an "equilink bar" that connects the upper pivot link and the lower pivot link. Felt contends that this system "equalizes" movement of the suspension in response to pedalling forces by linking the motion of the upper and lower linkages.
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