Disc numbering system

01 / 02 Slotted Face, T Bobbin, Peg drive, Bolt / bush
03 / 04 Slotted Face, OE Mounting
05 / 06 Slotted Face, OE Mounting
07 / 08 Slotted Face, DD
11 / 12 Smooth Face, T Bobbin
13 / 14 Smooth Face , OE Mounting
15 / 16 Smooth Face , OE Mounting
17 / 18 Smooth Face, DD
21 / 22 Dimpled Face, T Bobbin
23 / 24 Dimpled Face, OE Mounting
25 / 26 Dimpled Face, OE Mounting
27 / 28 Dimpled Face, DD
31 / 32 Slotted Face, T Bobbin, Dyno Bedded
33 / 34 Slotted Face, OE Mounting , Dyno Bedded
35 / 36 Slotted Face, OE Mounting , Dyno Bedded
37 / 38 Slotted Face, DD, Dyno Bedded
41 / 42 Double Slotted Face, V2
43 / 44 Dimpled Face, V2
45 / 46 Slotted Face, V2
451 / 461 Slotted Face, V3
47 / 48 Slotted Face, V2, Dyno Bedded
51 / 52 Double Slotted Face, V2
55 / 56 Slotted Face, V2 – V3, Championship supply
57 / 58 Slotted Face, DD, Heavy Duty Mounting
61 / 62 Slotted Face, T Bobbin, Inc Bobbin Kit
63 / 64 Slotted Face, OE Mounting, Inc Bobbin Kit
65 / 66 Slotted Face, OE Mounting, Inc Bobbin Kit
651 / 661 Slotted Face, V3
67 / 68 Slotted Face, DD / V2, Inc Bobbin kit
71 / 72 Smooth Face, T Bobbin, Inc Bobbin kit
73 / 74 Smooth Face , OE Mounting, Inc Bobbin Kit
75 / 76 Smooth Face , OE Mounting, Inc Bobbin Kit
77 / 78 Smooth Face, DD, Inc Bobbin Kit
81 / 82 Dimpled Face, T Bobbin, Inc Bobbin Kit
83 / 84 Dimpled Face, OE Mounting, Inc Bobbin Kit
85 / 86 Dimpled Face, V2, Inc Hat Ring Kit
87 / 88 Dimpled Face, DD, Inc Bobbin Kit