Notch design for Mac Ride compatibility: Allows use of Mac Ride front mount spacers with knock block headsets
Durable solid black construction: Ensures long-lasting performance and a clean look
Easy installation: Simplifies headset setup for mountain bike riders
Compatible with Trek knock block spacers: Designed specifically for Trek systems
Summarized by Shop
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:
Color
Black
Pattern
Solid
Compatible Bike Type
Mountain
Part Number
545523
Brand
Trek
Summarized by Shop
4.3
9 ratings
5
4
3
2
1
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.
A
Arvin · August 23, 2021
Exactly what I was looking for.
What I needed when everywhere else was sold out.
Thanks!
M
Matt · May 31, 2021
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.