XRA350013 XB8 2018 Nitro Buggy Manual
19
5. FRONT SUSPENSION
KICK UP
ROLL CENTER DOWNSTOP
WHEELBASE
TRACK WIDTH
901408
SB M4x8
909395
SS 3.5x45
909372
SS 3.5x22
353371
SHIM 4x10x2
All possible mounting alternatives 
of eccentric bushings
3.5x22mm
3.5x45mm
The tables below describe the amounts of kick-up, front track-width change depending on the combinations 
of eccentric bushings used with 0 and 1mm, 1° offset. The 0.5mm, 0.5° represents the half change.
* Not recommended to use this setting.
NOT RECOMMENDED TO USE THIS SETTING
TRACK-WIDTH ROLL CENTER
FF FFFR FR(mm) (mm)
=308
=306
=310*
=1
=0
=-1
The XRAY alu front lower suspension holders provide even greater range of 
adjustment for the front suspension. Using different combinations of eccentric 
bushings, fine adjustment of front kick-up, roll center, and front track-width 
can be obtained. For more information about the influence of kick-up, front 
track-width, and roll centers on car handling, please refer to HUDY Off-Road 
Set-up Book (#209099).
Eccentric bushings have two different offsets from the center.
Middle position = 0.5 mm or 0.5° from center 
 Outer position = 1mm or 1° from center
➊
➊
➋
➌
➌
➍
➍
➎
4x8mm
FR
FF
2mm
2mm
4mm
4mm
2mm
2mm
2mm
2mm
4mm
4mm
DETAIL
FRONT ARM
L=R
DETAIL
Check for free movement
DETAIL
Push the arm from both sides to create play
INITIAL SETTING
FF
0.5°
1°
INITIAL SETTING
FR
0.5°
1°
(HUDY #107634)
ARM REAMER
If the suspension arms do not move  freely, 
use a HUDY Arm Reamer to resize the holes.
DETAIL
0.0mm
DOWNSTOP SETTING
DETAIL
2.0mm Allen
#902407
Downstop screw 
for fine tuning.
INITIAL SETTING ALTERNATIVE SETTING
INITIAL SETTING
BOOK
SET-UP










