Carbon taperd road fork – use crown race or not?

Asked by: Lisa Thompson

Do you need a crown race on a carbon fork?

The crown race is the only thing that separates the headtube and fork. Without it, the headtube (of the frame) and fork will sit flush against each other. With no gap between the two surfaces, they will grind against each other, causing damage to both the forks and headtube.

Does a tapered fork need a crown race?

Straight 1 ⅛ in steerer tubes have a crown race seat of 30mm, so they require a 30mm crown race. Tapered steerer tubes can taper out to 1 ¼ in (33mm crown race seat) and sometimes have integrated crown races (like the 2nd image), so no press-fit crown race is needed.

How do you put a crown race on a carbon fork?

Quote from video: Go so here's the crown race very simple um don't need any grease or anything we just install it press fit on the fork. Here the uh smooth flat side goes down.

How do I get rid of crown race in carbon fork?

Place a small flat-bladed screwdriver between the crown and the race and turn it gently by about 1/16 of a circle (about 20 degrees). Repeat this all the way around, making the full circle in 8 to 10 “pokes”. When rotating the screwdriver, the race should be lifted by far less than 1 mm. Go gently, patiently.

How do I get rid of crown race?

Quote from video: Take the screwdriver and just put it down on the base. Of the crown race and just tap it a little bit flip. It over the other. Side. Tap it down a little bit and just go back and forth.

How do you pick a crown race?

To determine the fit, measure both the inside diameter of the fork crown race and the outside diameter of the fork crown. A difference between 0.05mm to 0.15mm is generally considered acceptable. Differences less than 0.05mm may be a weak fit and may come loose during use.

Can you reuse a crown race?

Unless it has been damaged, there is no reason a crown race can’t be reused.

Are Crown races headset specific?

NO! Not all headset cups and crown races are the same. There are different angles on the bearings both the inner and outer surfaces. You need to make sure that the cups and races match the bearings.

What is an integrated crown race?

An integrated crown race is simply a steerer tube that has been shaped to mate precisely with the outer race of the headset bearing. This takes over the duties of the crown race that would have been installed before. Integrated crown races typically come in two different angles – 36 or 45 degrees.

How do you use the crown race tool?

Quote from video: Where you put the Crown race on and then. I just drop it on just kind of you know make sure it goes on straight and push it on with your fingers. To get it snug.

What is crown race diameter?

The crown race ID is 26.5mm rather than 26.4mm and the threads are a tiny bit different, but ISO headsets are so close that they work absolutely perfectly on Italian frames. French sized frames use a 25.0mm steerer with a 22.0mm ID.

Where is the crown on a fork?

front

A fork typically consists of two blades which are joined at the top by a fork crown. The crown is often at the front. Most suspension forks have an arch connecting the two side of the lowers (the part connected to the axle.) It is often in front of the stanchions (shaft the lowers slide on) but not always.

What is fork crown?

The Crown connects your fork’s steer tube to its stanchions. The Stanchions are the pieces of tubing that actually slide into your forks lowers. The stanchions internally house the air spring (or coil) as well as the damper.

How do you remove a dual crown fork?

Double Crown Forks



Remove the front wheel. Use an allen key to remove the bolts which attach the brake caliper to the fork legs. Undo the pinch bolts of the upper and lower crowns, and start to slide the forks from the crowns. Remove the fork bumpers if fitted, then slide the stanchions all the way out.

How do you install split Crown racing?

Quote from video: So now we can get on to installation. Okay so you have the crown race removed and now you want to put it onto a new fork or put a new crown race on this one or whatever it may be simply take it slide

Do all headsets have crown race?

NO! Not all headset cups and crown races are the same. There are different angles on the bearings both the inner and outer surfaces. You need to make sure that the cups and races match the bearings.

What is an integrated crown race?

An integrated crown race is simply a steerer tube that has been shaped to mate precisely with the outer race of the headset bearing. This takes over the duties of the crown race that would have been installed before. Integrated crown races typically come in two different angles – 36 or 45 degrees.

How do you use the crown race tool?

Quote from video: Where you put the Crown race on and then. I just drop it on just kind of you know make sure it goes on straight and push it on with your fingers. To get it snug.

What is crown race diameter?

The crown race ID is 26.5mm rather than 26.4mm and the threads are a tiny bit different, but ISO headsets are so close that they work absolutely perfectly on Italian frames. French sized frames use a 25.0mm steerer with a 22.0mm ID.

Can you reuse a crown race?

Unless it has been damaged, there is no reason a crown race can’t be reused.

What is fork crown?

The Crown connects your fork’s steer tube to its stanchions. The Stanchions are the pieces of tubing that actually slide into your forks lowers. The stanchions internally house the air spring (or coil) as well as the damper.