Tange Seiki BB220SB Sealed Bottom Bracket For One Piece Cranks Chrome
• 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.