Grade 12.9 Pinion Bolt 5B/5T
But only from... DAVE'S DISCOUNT MOTORS
Many HPI Baja 5B/5T users have had problems with broken pinion bolts. These 12.9 grade bolts are stronger than stock, and while they do not completely eliminate the risk of breaking, it does help make a break less likely. This is a simple, cheap upgrade that has saved many Baja owners a great deal of frustration. Bolt size is M4 x 16.