Ribble Ultra SL Headset Bearing Kit (Same Upper & Lower) Pole Inch Classification – 1-1/8

Inch Classification – 1-1/8

platform design for stability

but not Prime brand

1 x 1 1/8" Upper Bearing ( MR040)

suitable for SRAM DUB bottom brackets

Ribble Ultra SL Headset Bearing Kit (Same Upper & Lower) Pole Inch Classification – 1-1/8Headset bearing kit to fit this Ribble bike Upper Bearing MH P16 (40 x 52 x 7 45 45) Lower Bearing MH P16 (40 x 52 x 7 45 45) Depending on the year and frame size, some have the same upper and lower bearing, some have a slightly taller lower bearing (See "Different Lower" kit for the ACB518K 40 x 51. 8 x 8 36 45 lower bearing kit. Please check your bearings to ensure correct kit High quality bearings