Ribble Ultra SL Headset Bearing Kit (Different Lower)

Headset bearing kit to fit this Ribble bike

Upper Bearing – MH-P16 (40 x 52 x 7 - 45/45)

Lower Bearing –ACB518K (40 x 51.8 x 8 - 36/45) 

Depending on the year and frame size, some have the same upper and lower bearing: MH-P16 - 40 x 52 x 7 - 45/45. See "Same Upper & Lower" kit for this version instead.

Please check your bearings to ensure correct kit.

High quality bearings.