The weight of Predator pool cues can be adjusted by unscrewing the cue butt bumper or rubber and adding or removing weight bolts to achieve your desired weight.
Predator pool cues made since 2008 have a Uni-Loc Weight cartridge system shown above, and their weight can be adjusted using the Uni-Loc Weight Cartridge Kit show below and that you can purchase here:
International customers: https://www.predatorcues.com/int/uni-loc-weight-cartridge-kit.html
The Uni-Loc® Weight Cartridge Kit lets you fine-tune the weight of your cue within a tenth of a ounce (0.1 oz / 2.83 gr). Eight different weights, ranging from 0.1 oz. to 2 oz., give you up to 30 possible weight combinations for unmatched precision. The versatile installation tool has dual prongs that interlock with each weight and a detachable handle. The tool can be used with the handle for easy on-the-go tuning, or with a drill bit for lightning fast tuning at home.
Weight sizes in Ounces: 0.1, 0.2, 0.3, 0.4, 0.5, 0.7, 1, 2 oz.
Weight sizes in Grams: 3, 6, 8.5, 11, 14, 20, 28, 57 gr.
Since the weight bolts do not have a head, the weight bolts can be stacked to get to the desired weight (for example using a 0.5 oz bolt, and then a 0.2 oz on top of it to add 0.7 oz). If stacking weight bolts, they will need to be tightened well together to prevent buzzing sounds.
To understand by how much weight you can adjust your cue, you will first need to see if there are weight bolts inside, and which weights these are. Once its length or weight is known, you will be able to understand the range by which your cue weight can be adjusted. You can lighten the cue by the weight of the current weight bolt(s). You can also increase the weight by using a heavier weight bolt than the one currently in your cue.
The maximum amount of combined weights that can be added into a butt at one time is 3.5 oz or 100 gr.
The Uni-Loc weight cartridge system and weight bolts are compatible with the following Predator cues series:
BK III SERIES
BLAK 2, 3, & 4 SERIES
IKON2, 3 & 4 SERIES
ROADLINE – SNEAKY PETE SERIES
SPORT II SERIES
LIMITED & SPECIAL EDITIONS (2012 & NEWER)
ALL PREDATOR CAROM CUES
MOLINARI BY PREDATOR CAROM CUES MADE BEFORE 2019
If you have a Predator cue made before 2008 and that is not compatible with the Uni-Loc cartridge system, refer to the following article to find compatible weight bolts: