Avid 5.8mm Titanium Pivot Balls are M3 threaded with a 3mm hex on the end for easy installment. Racers like to use these in order to remove the weight up high for a lower CG due to the stock kits typically supplying steel balls. These come in at 0.36g/ea where stock XRAY steel balls are 0.70g/ea. 
Features: 
- Machined from billet 6Al-4V Titanium
 - Broached with a 3mm allen head on outer side for easy installation and removal
 - 40% lighter than the kit steel ball studs
 - Includes 4 pivot balls, 1 doodad container, and 1 Avid mini-decal
 
Fits: 
- XRAY:
 - T4 '16, '15, and '14
 - X12 '16, '15 and '14
 - X1 '16 and '15
 - X10 '16 and '15
 - NT1 '15 and '14
 - RX8 '14
 - ARC:
 - R10, R11
 - Serpent:
 - S411 4.0, 3.0, and 2.0 Eryx
 - 733
 - 747
 - 747e
 - 748
 - 966
 - Hot Bodies:
 - Pro 5
 - R10
 - Kyosho:
 - TF-5
 - Evolva
 - V-One RRR
 
              