The Fox 2.0 Reservoir Holding Clamp with Clamp Inserts (part 803-02-044) mounts a remote reservoir against the body of a Fox 2.0-diameter shock, the piggy-back setup used across Fox's 2.0 remote reservoir lineup. Owners on user forums have ordered it specifically to replace the band clamps supplied with their Performance 2.0 remote reservoir shocks. For a builder who wants the reservoir held in a fixed, machined position, that swap is the main reason to choose it over stock hardware.
Fitment is the part to verify before you order. One owner on a user forum measured a Performance 2.0 shock body at roughly 2 3/16 inches and found that a 2-inch clamp would not fit it, so measure your shock body and reservoir diameter first. Search terms worth checking against the manufacturer's listing include Fox 2.0 remote reservoir clamp 803-02-044, 2.0 piggy-back reservoir clamp, and Fox 2.0 billet reservoir mount fitment.
Confirm the shock body and reservoir diameters before you start, since fitment is the most common problem owners on user forums describe. Plan the reservoir position first, then tighten. Fox's install sheet for its 2.5 reservoir brackets recommends loosely pre-assembling the clamp nearest the front of the vehicle before final tightening, and that sequence is a sensible approach here too. Check that the reservoir sits clear of the coil spring and control arm travel before you torque the hardware.
