Tamiya TB04 Pro 2 Ceramic Bearings Choose Model:TB04R They include diamond polished Grade

They include diamond polished Grade 5 Silicon Nitride balls

They took the Sakura Zero and tweaked it to an entire new level

They trimmed the 8x16 mm bearings 2 mm in overall diameter and 1mm in width to an 8x14x4 mm bearing resulting in lighter overall weight

Also include is a complete set of GRP foam tires

30 piece bearing kit

Tamiya TB04 Pro 2 Ceramic Bearings Choose Model:TB04R They include diamond polished GradeACER Racing's Tamiya TB04 Pro 2 Ceramic Bearing kit is a full and complete bearing set replacing all of the TB04 Pro 2 bearings with our Ceramic Nitride Pro Series bearings. Oiled with 100% synthetic SIN oil not greased.