2.125-5.750" (53.98-146.05mm).
For 1" arbor
Hubless Rotors & Drums through 1 Ton Vehicles.
Includes:
940924 Backing Plate, (4.7" diameter)
940924 Backing Plate, (5" diameter)
941202 Backing Plate, (6.2" diameter)
940923 Backing Plate, (7.2" diameter)
Set of 2 hubless adaptors and 1 centering cone
For 1" arbor
Contents:
2 x Hubless adaptors: 176mm
Centering cone: 9.5 x 14.5mm