Trek Knock Block Lockring

Trek Knock Block Lockring

Regular price$59.99
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Shipping calculated at checkout.

This lockring spacer is automatically discounted by 60% off for customers also buying a Mac Ride. 

Do you ride with the Knock Block headset?

If yes, your spacers have notches on them. In order to be Mac Ride compatible, you need this wee KNOCK BLOCK Lockring Spacer.


The order for installation, Option 1, with knock bock spacers -
  • Base: any knock block spacers you are keeping
  • 2nd Layer: lockring spacer
  • 3rd Layer: Mac Ride front mount spacer
  • Then, your stem.

Option 2, removing knock block spacers:

  • Base: lockring spacer
  • 2nd Layer: Mac Ride front mount spacer
  • 3rd Layer: Any standard spacers you wish to add
  • Then, your stem.

Looking for a TREK lockring spacer closer to home? The part number is: #545523.

Quill Install

  1. Instead of swapping out a spacer on your steerer tube to install our standard spacer, use the quill adapter
  2. Once you loosen your stem (with bars), remove them from the frame
  3. Slide the quill upward on to the tube
  4. Reinstall your stem (with bars)
  5. The quill adapter does not need to be tightened. It should be snug, but not at all "cranked".

  
  Trek Knock Block Lockring

Customer Reviews

Based on 6 reviews
83%
(5)
0%
(0)
17%
(1)
0%
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0%
(0)
A
Arvin
Overprice but perfect!

This lockring works. Definitely recommended. Mine was installed on a Trek Supercaliber. Change my 60mm stock stem to a 75mm -15deg spare specialized stem I have.

M
Matt
Exactly what I was looking for.

What I needed when everywhere else was sold out.
Thanks!

J
JKR
Locking ring

The locking ring works but for me I wish it was half the thickness. It's the same size of the factory spacers.

J
James King
Run the stem you want too

I was very happy to find this option for the knock block headset. Im now running the stem I want too. Bontrager should have taken this opportunity to step up their stem game but with this I’m running a renthal stem without any issues, no play, no trouble thru switchbacks. Totally satisfied

m
michael surrency

Nice beat easy to dance too,
I give a95!!!

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