Hot Selling 110 EC49 Conversion Headset Bottom

• Bottom Type: EC – External Cup
• Bottom Head Tube Inside Dia.: 49.61mm
• Crown Race Seat Dia.: 30.015mm
• Crown Race Type: Aluminum, Dual-Seal
• Bottom Stack Height: 12mm
• Bottom Bearing Type: Top-quality, sealed stainless steel bearings
• Material: 7075 aluminum
• Weight: 83.01g

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