More commonly known as a crown race, Chris King Components choose to call it a baseplate due to this being the foundation of the venerable Chris King Sealed Bearing headset and is designed as a low cost, sacrificial piece, easily replaced when worn or damaged upon removal. Made of stainless steel. 14g.
Weight: 14 grams
1-1/8 Inch
Mfg PartNum: PHS432
1.5 Inch
Mfg PartNum: PHS625