Kinetic Bearings Headset Bearing Kinetic headset bearings are designed to be a upgrade on the standard headset bearings. Material: Chrome Steel 100Cr6 (Race & Balls) Grease: Mobil XHP-222 or SINOPEC HTHS Bearing Grease Seal: Double-sealed 2RS Cage Material: Nylon PA66 Various sizes ACB3636-150S Inner x Outer x Depth (mm): 40 x 51 x 6.5 Inch Dia: 1-1/2" Internal Angle: 36 Degrees External Angle: 36 Degrees Used On: Trek Madone (Lower Cup) ACB518K Inner x Outer x Depth (mm): 40 x 51.8 x 8 Inch Dia: 1-1/2" Internal Angle: 36 Degrees External Angle: 45 Degrees MH-P03 Inner x Outer x Depth (mm): 30.15 x 41 x 6.5 Inch Dia: 1-1/8" Internal Angle: 45 Degrees External Angle: 45 Degrees MH-P03H7 Inner x Outer x Depth (mm): 30.15 x 41 x 7 Inch Dia: 1-1/8" Internal Angle: 45 Degrees External Angle: 45 Degrees Used On: Many modern BMX's running integrated headsets MH-P03K Inner x Outer x Depth (mm): 30.15 x 41 x 6.5 Inch Dia: 1-1/8" Internal Angle: 36 Degrees External Angle: 45 Degrees MH-P08 Inner x Outer x Depth (mm): 30.15 x 41.8 x 6.5 Inch Dia: 1-1/8" Internal Angle: 45 Degrees External Angle: 45 Degrees MH-P08F Inner x Outer x Depth (mm): 30.5 x 41.8 x 8 Inch Dia: 1-1/8" Internal Angle: 45 Degrees External Angle: 45 Degrees Used On: Specialized (the inner chamfer has a lip) MH-P08H7 Inner x Outer x Depth (mm): 30.15 x 41.8 x 7 Inch Dia: 1-1/8" Internal Angle: 45 Degrees External Angle: 45 Degrees MH-P08H8 Inner x Outer x Depth (mm): 30.5 x 41.8 x 8 Inch Dia: 1-1/8" Internal Angle: 45 Degrees External Angle: 45 Degrees MH-P16 Inner x Outer x Depth (mm): 40 x 52 x 7 Inch Dia: 1-1/2" Internal Angle: 45 Degrees External Angle: 45 Degrees Used On: FSA Orbit, Specialized MH-P16H8 Inner x Outer x Depth (mm): 40 x 52 x 8 Inch Dia: 1-1/2" Internal Angle: 45 Degrees External Angle: 45 Degrees MH-P21 Inner x Outer x Depth (mm): 37 x 49 x 7 Inch Dia: 1-3/8" Internal Angle: 45 Degrees External Angle: 45 Degrees MH-P22 Inner x Outer x Depth (mm): 34.1 x 46.9 x 7 Inch Dia: 1-1/4" Internal Angle: 45 Degrees External Angle: 45 Degrees Used On: Kuota Road Bike, Cube Road Bikes & Many other Road Bikes using a Ritchey Lower Heaset Bearing of 1-1/4" Dia MH-P25K Inner x Outer x Depth (mm): 40 x 52 x 6.5 Inch Dia: 1-1/2" Internal Angle: 36 Degrees External Angle: 45 Degrees Used On: Cane Creek 110 & 40 Series MR136 Inner x Outer x Depth (mm): 32.8 x 41.8 x 6 Inch Dia: 1-1/4" Internal Angle: 45 Degrees External Angle: 45 Degrees Used on: Giant OD2 Upper Cup MR137 Inner x Outer x Depth (mm): 37 x 46.9 x 7 Inch Dia: 1-1/4" Internal Angle: 45 Degrees External Angle: 45 Degrees Used on: Giant OD2 Lower Cup