Slam That Stem 1-1/8" Bearing Covers

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Warning! This is for aero-junkies only...

The guys at Slam That Stem have created low profile bearing covers to literally "Slam That Stem" close to the head tube.

  • Works with 1-1/8" integrated headsets
  • Cover Diameter = 1.85" or 47mm 
  • 2 grams per cover
  • Each cover comes with 3 microspacers
  • 2mm height!

So how many watts can you save with a slammed stem? Find out in the video below:



Installation / Disclaimer

  • If you bike is not the CAAD 10, 8 or Super Six evo, you will probably need micro spacers between our product and your headset to ensure that our cap is not contacting your headtube. 3 are included with each cover.
  • If you do not fully understand how the cover works, please get in touch with your local bike shop to help with installation to avoid damages to your bike or headset assembly.
  • If you have never adjusted or worked with integrated headsets before, please seek help to make sure this is done properly.
  • Any adjustment to a bike can invalidate your warranty. Slamming your stem will likely invalidate your warranty, contact your bike supplier to avoid disappointment.
  • To be sure that the SLAM THAT STEM Headset Dust Cover is working properly, you should be able to pass a piece of paper between the gap of your Dust Cover and your headtube.
  • If you cannot do this and they are making contact, you need a micro shim or two. If you tighten the headset down without the proper micro spacers, the Dust Cover and the bike can get damaged. 
  • SLAM THAT STEM and KIT RADAR are not responsible for damages incurred to the bicycle, dust cover or user as result of improper installation. 
  • Remember, if something on your bike feels wrong, it is wrong, and you should stop riding it and bring it into a shop to be looked at!


2mm height headset bearing cover with microspacers for a perfect fit

  • Height: 2mm
  • Diameter: 1 1/8 inch or 1.85 inch or 47 mm
  • Weight: 2 grammes

  • 1 x Slam That Stem Bearing Cover
  • 3 x microspacers
  • 1 x certified slammed sticker

Customer Reviews

Based on 1 review

Really struggled to find anything in the UK that would slam my stem! Found it on Kit Radar and chuffed to pieces. Looking forward to saving some watts!