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Enduro Bearings and Seals RacingBros
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12 O`Clock:Headsets
Product - Description   Price Ex GST Price Incl GST ✔ = in stock now ❌ = no stock more expected
12O-05CR01-BK - 12Oclock Crown race - 1-1/8 45 degree
Our Part code: 12O-05CR01-BK - Alt Part code: 05HS1-CR

For 1-1/8 steerer forks with 45 degree inner angle bearing

  8.00 8.80 ✔ 43

12O-05CR02-BK - 12Oclock Crown race - 1.5 45 degree
Our Part code: 12O-05CR02-BK - Alt Part code: 05HS2-CR

For 1.5 steerer forks with 45 degree inner angle bearing

  13.70 15.07 ✔ 15

12O-05CR51-BK - Crown race - 1.5 - 1-1/8
Our Part code: 12O-05CR51-BK - Alt Part code: 05CR51

For 1-1/8 steerer forks in a 1.5 headset with a 45 degree inner angle bearing

  13.70 15.07 ✔ 40

12O-05CR52-BK - Crown race - 1.8 - 1.5
Our Part code: 12O-05CR52-BK

For 1.5 inch steerer forks in a 1.8 headset with a 36 degree inner angle 50mm ID bearing
eg MR229

  17.30 19.03 ✔ 83

12O-05EXP-BK - Expander for 1-1/8 Carbon steerer - Black
Our Part code: 12O-05EXP-BK - Alt Part code: 05EXP-BK

20mm depth
Full insertion type

  19.40 21.34 ✔ 32

12O-05EXP-BL - Expander for 1-1/8 Carbon steerer - Blue
Our Part code: 12O-05EXP-BL - Alt Part code: 05EXP-BL

20mm depth
Full insertion type

  19.40 21.34 ✔ 5

12O-05EXP-GD - Expander for 1-1/8 Carbon steerer - Gold
Our Part code: 12O-05EXP-GD - Alt Part code: 05EXP-GD

20mm depth
Full insertion type

  19.40 21.34 ✔ 5

12O-05EXP-RD - Expander for 1-1/8 Carbon steerer - Red
Our Part code: 12O-05EXP-RD - Alt Part code: 05EXP-RD

20mm depth
Full insertion type

  19.40 21.34 ✔ 5

12O-05HS1-BK - Headset - ZS44/ZS44 1-1/8 - Black
Our Part code: 12O-05HS1-BK - Alt Part code: 05HS1-BK

Top Cap: AL6061-T6, Laser Logo   AL7075 Screw, W/Star-Nut
Crown race: AL7075
Fork Steerer: 1-1/8” Upper / 1-1/8" Bottom
Headtube: 44mm Upper / 44mm Bottom
Stack Height: 9.6+3=12.6mm
Bearing: Sealed Bearing, 41mm Upper / 41mm Bottom
Weight: 80gr

  77.10 84.81 ✔ 10

12O-05HS2-BK - Headset - ZS44/ZS56 1-1/8 - 1.5 - Black
Our Part code: 12O-05HS2-BK - Alt Part code: 05HS2-BK

Top Cap: AL6061-T6, Laser Logo   AL7075 Screw, W/Star-Nut
Crown race: AL7075
Fork Steerer: 1-1/8” Upper / 1.5" Bottom
Headtube: 44mm Upper / 56mm Bottom
Stack Height: 9.6+2.8=12.4mm
Bearing: Sealed Bearing, 41mm Upper / 52mm Bottom
Weight: 112gr

  82.80 91.08 ✔ 31

12O-05HS255-BK - Headset - ZS44/ZS55 1-1/8 - 1.5 - Black
Our Part code: 12O-05HS255-BK - Alt Part code: 05HS255-BK

Top Cap: AL6061-T6, Laser Logo   AL7075 Screw, W/Star-Nut
Crown race: AL7075
Fork Steerer: 1-1/8” Upper / 1.5" Bottom
Headtube: 44mm Upper / 55mm Bottom
Stack Height: 9.6+2.8=12.4mm
Bearing: Sealed Bearing, 41mm Upper / 52mm Bottom
Weight: 112gr

  82.80 91.08 ✔ 10

12O-05HS3-BK - Headset - IS42/IS52 1-1/8 - 1.5 - Black
Our Part code: 12O-05HS3-BK - Alt Part code: 05HS3-BK

Top Cap: AL6061-T6, Laser Logo   AL7075 Screw, W/Star-Nut
Crown race: AL7075
Fork Steerer: 1-1/8” Upper / 1.5" Bottom
Headtube: 42mm Upper / 52mm Bottom
Stack Height: 9.6+2.8=12.4mm
Bearing: Sealed Bearing, 41.8mm Upper / 52mm Bottom
Weight: 95gr

  60.00 66.00 ✔ 34

12O-05HS341-BK - Headset - IS41/IS52 1-1/8 - 1.5 - Black
Our Part code: 12O-05HS341-BK - Alt Part code: 05HS341-BK

Top Cap: AL6061-T6, Laser Logo   AL7075 Screw, W/Star-Nut
Crown race: AL7075
Fork Steerer: 1-1/8” Upper / 1.5" Bottom
Headtube: 41mm Upper / 52mm Bottom
Stack Height: 9.6+2.8=12.4mm
Bearing: Sealed Bearing, 41mm Upper / 52mm Bottom
Weight: 95gr

  60.00 66.00 ✔ 15

12O-05HS4-BK - Headset - ZS44/EC44 1-1/8-1-1/2 Black
Our Part code: 12O-05HS4-BK - Alt Part code: 05HS4-BK

Top Cap: AL6061-T6, Laser Logo   AL7075 Screw, W/Star-Nut
Crown race: AL7075
Fork Steerer: 1-1/8” Upper / 1.5" Bottom
Headtube: 44mm Upper / 44mm Bottom
Stack Height: 9.6+14=23.6mm
Bearing: Sealed Bearing, 41mm Upper / 52mm Bottom
Weight: 112gr
Colors: Anod. BK / Red / Gold / Blue / Silver / Green

  82.80 91.08 ✔ 8

12O-05HS5-BK - Headset - EC34/EC34 1-1/8 Black
Our Part code: 12O-05HS5-BK - Alt Part code: 05HS5-BK

Top Cap: AL6061-T6, Laser Logo   AL7075 Screw, W/Star-Nut
Crown race: AL7075
Fork Steerer: 1-1/8” Upper / 1-1/8” Bottom
Headtube: 34mm Upper / 34mm Bottom
Stack Height:
Bearing: Sealed Bearing, 41mm Upper / 41mm Bottom
Weight:
Colors: Anod. BK / Red / Gold / Blue / Silver / Green

  82.80 91.08 ✔ 32

12O-05SPC-BK - 12OClock Stem Spacer set for 1-1/8 steerer - Black
Our Part code: 12O-05SPC-BK - Alt Part code: 05SPC-BK

1 x 10mm
2 x 5mm
1 x 3mm

  9.00 9.90 ✔ 42

12O-05TCS-BK - Top cap set for 1-1/8 steerer - Black
Our Part code: 12O-05TCS-BK - Alt Part code: 05TCS-BK

Alloy top cap screw and star nut

  11.40 12.54 ✔ 10

12O-05TCS-BL - Top cap set for 1-1/8 steerer - Blue
Our Part code: 12O-05TCS-BL - Alt Part code: 05TCS-BL

Alloy top cap screw and star nut

  11.40 12.54 ✔ 8

12O-05TCS-GD - Top cap set for 1-1/8 steerer - Gold
Our Part code: 12O-05TCS-GD - Alt Part code: 05TCS-GD

Alloy top cap screw and star nut

  11.40 12.54 ✔ 10

12O-05TCS-RD - Top cap set for 1-1/8 steerer - Red
Our Part code: 12O-05TCS-RD - Alt Part code: 05TCS-RD

Alloy top cap screw and star nut

  11.40 12.54 ✔ 10

Product prices are shown ex GST for overseas customers and for comparative purposes.