The B-RAD Dogbone allows for the bottle cage to mounted off center with additional B-RAD accessories, without needing the B-RAD base. Most commonly used for smaller, curved or dual suspension frames where the slotted bases won't fit or are not needed. DOGBONE The Dogbone can be used to offset a bottle or other accessory to an optimal location. Most commonly used for smaller, curved or dual suspension frames Compatibility Mounting any of the bases requires the use of at least 2 standard threaded bottle cage mounts. B-RAD 3 and 4 should use the auxiliary foam pad (to protect your frame) and zip tie to secure the base. Any other mounting methods are not recommended You may need a Problem Solvers Space Out Kit or similar method to clear the front derailleur clamp. Be sure to use bolts with additional length equivalent to the extra spacing added Compatible with any frame that uses standard 64mm spacing bottle cage braze-ons (basically every modern frame)