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Headset Bearings
Make your old headset work like new. Shockcraft has replacement cartridge bearings to fit most common headsets and frames.
From Cane Creek compatible ACB3645 bearings to Campy compatible 4545 bearings and even replacement bearings for Cannondale's own 1.5 inch headset, Shockcraft has them all. We have high quality chromium steel across the range with stainless steel available in some sizes.
These bearings also fit several non-headset applications, such as the pivots in GT's I-drive suspension bikes. Contact us for help with sizing.
Headset Bearing Identification Chart (PDF)
Monocrome 1 1/8" Headset
Shockcraft also has its own high quality headsets with cartridge bearings for standard 1 1/8" frames and forks. Available with chromium steel or stainless steel bearings.
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1 1/8" ACB 870E 4545 Headset Bearing 41.8 mm OD (FSA)
US$17.70No Longer Available
Alternative bearing option: Campy 4545 1 1/8" 1RS Headset Bearing (Monocrome)
Headset bearing by FSA
45 x 45 degree ACB
MR121
ID: 30.5 mm, OD: 41.8 mm, W: 8 mm
FSA Part Code: 160-1647 Learn More -
ACB3645 1 1/8" Headset Bearing for IS42 Headsets (Cane Creek)
US$19.05Available on backorder
Application: Cane Creek IS42 Headsets
36 x 45 degree ACB
ID: 30 mm, OD: 41.8 mm, W: 6.3 mm
Zinc coated steel Learn More -
ACB4545 1 1/4" Headset Bearing for Giant Overdrive 2 (Monocrome)
US$15.93In Stock
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Campy 4545 1 1/8" 1RS Headset Bearing (Monocrome)
US$15.93In Stock
Application: 1 1/8" 4545 Headsets
45 x 45 degree ACB
ID: 30.5 mm, OD: 41.8 mm, W: 7.88 mm
Features single rubber seal (1RS), rolled over outer race & recessed inner chamfer
Exact replacement for Campy 4545 1 1/8" bearings Learn More -
Campy 4545 1 1/8" 2RS Stainless Steel Headset Bearing (Enduro)
US$47.60Last One Left
Application: 1 1/8" 4545 Headsets using campagnolo (campy) style 45 x 45 degree ACB bearings ID: 30.5 mm, OD: 41.8 mm, W: 6.4 mm
Two rubber seals (2RS) This bearing looks different but is a direct fit to replace the one-side-sealed Campy 4545 1 1/8" bearings
Straight replacement for Campy 4545 1 1/8" bearings Learn More
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- Bearing Outside Diameter (OD): 41.8 mm Remove This Item
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- Bearing Internal Diameter (ID)
- Bearing Material
- Bearing Chamfer
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