This is the list of my XRAY XB4 2016 option parts that I use most of the time on carpet and astro tracks. All this parts help me to improve the performance of my perfect XRAY XB4.

366220 Servo Mount

Gives additional increased steering and improves flex.

361178 Graphite Rear Chassis Brace Deck 2,2mm

Helps me to improve the stability of the car on extreme high grip condition.

362573 Alu Steering Plate 4-Hole

This steering plate increases the steering precision and gives more additional set up options.

362478 Anti-Roll Bar 1.8 mm

Gives less chance to traction rolling on high grip tracks. I use it in front and also in rear.

363352 - Alu Rear Upright - Left

363351 - Alu Rear Upright - Right

Give more rotation from the rear end which allows the car to turn faster in corners.

362112-G - Composite Susp. Arms Front Lower - Graphite

363121-G – Composite Susp. Arms Rear Lower Left – Graphite

363111-G - Composite Susp. Arms Rear Lower Right – Graphite

The graphite arms are perfect to give more speed in corners in high grip conditions.

362244 Alu C-Hub 12° Left

362234 Alu C-Hub 12° Right

These options increase the stability of the car in the corners and help the car to be easier to drive.

335030 Diff Bevel And Satellite Gear

This option part is "bulletproof" - it offers very long durability and better traction.

N. Risser

Source: N. Risser