TKR5042B – Spindle Carriers (15 degrees caster, left and right)
The 15 degree spindle carriers are ideal for bumpy or blown out tracks.  They provide more stability in low-bite conditions and make the vehicle easier to drive.  Constructed of durable composite material, they are a direct upgrade for the EB48 and EB48.2 electric 1/8th scale buggies.  They are stock on the NB48, NT48, and ET48 vehicles.
Combined with the chassis kick up and ability to adjust that angle with the front inner hinge pin inserts, the total caster on the vehicles can be adjusted from 25 deg (single dot insert up), 25.5 deg (double dot insert up), 26 deg (insert middle), 26.5 deg (double dot insert down) and 27 deg (insert down) total caster.