•  Genuine Tange-Seiki made in Japan. 

•  Fully CNC machined heat tread steel cups and cones.

•  Tange Seiki original size sealed cartridge bearings. 

•  We reccomend sealed bearings for your One Piece cranks, no more adjusting sub-standard loose ball bearings especially if you are going to actually ride your bike .

•  24tpi thread - so fits all one piece cranks except 28tpi fine-thread Ashtabula and early Mongoose.

•  Chrome plated.