1. Only 30g compare to stock 46g.
2. Stainless steel to withstand tough condition.
3. Vibration-free after installation.
4. Built in threaded screw hole for Cateye mount.
Listing is only for one 30g Bracket
Compatible with Cateye Battery models EL530, EL500, EL 320, EL300, EL100, EL135, EL210, EL220 and USB Charge models Volt 200, 300, 400 (you will need the stock mount) ... but not the rubber band type.