Chris King ThreadFit 30 bottom bracket

Bottom bracket Chris King with BSA threads built around angular contact bearings made in the USA. It is certainly the most durable and high-performing bottom bracket on the market, and their lifetime warranty is proof of its quality.

• BSA/BSC thread
• High-quality stainless steel bearings
• Compatible with 68 / 73 / 83 / 100 mm box width
• External diameter: 34.75 mm
• 30 mm axis compatible
• Designed, manufactured, and assembled in Portland, Oregon, USA
• King Lifetime Warranty
• Requires Fit Kit (sold separately):
• Fit Kit #2:
• Use: Road
• Bottom bracket axle: DUB 28.99 mm
• Bottom bracket: ThreadFit 30
• Road bottom bracket width: 68 mm
• Manufacturer's number: PBB080
• Fit Kit #3:
• Use: Road, MTB
• Bottom bracket axle: 30 mm
• Road bottom bracket width: 68 mm
• MTB bottom bracket width: 68 mm, 73 mm
• Bottom bracket: ThreadFit 30
• Manufacturer number: PBB083

If your bike creaks when you press hard on the pedals, or if the bottom bracket has lost its smoothness or become loose, these symptoms indicate it's time to change your bottom bracket. Like all parts of your bike, the bottom bracket and its bearings are subject to wear.

Replacing it is a simple operation if well prepared. The variety of standards for bearings, bottom brackets, and frames can be overwhelming. We will guide you through this complexity. The bottom bracket is the interface between your crankset and your frame, so the first step is to identify which crankset you want to fit into which frame.

We advise you to dismantle your original bottom bracket to measure the dimensions of the bottom bracket of your frame accurately. This compatibility is given as an indication; there are also adapters that allow mixing standards.

• Width of the box: 68
• 100 Standard BSC/BSA bottom bracket
• Internal diameter: 34.75 mm
• Bearing quality: Stainless steel
• Bottom bracket axle: 30 mm
• Standard Bottom bracket: Rotor UBB30 (BB30 long axle).