Trek Knock Block Lockring

Trek Knock Block LockringThis lockring spacer is automatically discounted by 60% off for customers also buying a Mac Ride. Do you ride with the Knock Block headset from Trek? 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,

If your frame is 68mm or wider

This weight makes it unnoticeable when mounted on the bike

Sometimes customers have an unlucky moment and they need to purchase a replacement "leg" for their Mac Ride (foot rest plus stirrup insert)

Maximum weight to tow: 200kg – 450lb

Can you ever have too many bikes

so if they don't need the extra width

low-profile cloth on each thumb (stay dry and wipe away mud)

Sometimes the size is marked on the shaft of the stem

Weight of the device: 95g

Suitable for any bike

for no extra shipping charge)

Shipping added at checking