This is the optional JConcepts 48P 78T Silent Spur Gear|
for the Associated B4.1, T4.1, B44.1, SC1 and
B5, B5M, T5M and SC5M Vehicles.
Precision machined composite material for a more consistent gear
mesh, more precise adjustment and quieter operation
Pattern vented area
JConcepts 48P 78T Silent Spur Gear