*Free shipping on orders over $99

Free Shipping Policy

Free Shipping applies to all orders placed for $99 and above
(pre-tax value). Some restrictions apply:

  • Offer valid in the Lower 48 States only
  • Excludes Complete Bicycles, Framesets, and some other oversize items

Road Headsets

Cervelo ST29 Headset

This Cervelo headset was developed by FSA and TH industries for use the proprietary stem system used with the 2019-present S3 Rim / Disc framesets, as well as the S-Series Disc 2019-present. It is not to used with any other frameset and includes the specific set of component parts and bearings to replace the headset that came with the specified framesets.


  • FSA IS2 headset for specific Cervelo S3/S-Series with ST29 proprietary stem assembly: 1-1/4" x 1-3/8”
  • Compatible with: S3 Rim/Disc (2019 - present), S-Series Disc (2019-present)
  • Includes upper and lower bearings, split ring, proprietary upper cap with spacer tab post, washers
  • Bearings are not the same- 1¼" 45°x45°, / 1⅜" 36°x45°