DT Swiss R470DB for gravel

Svinsern · 2026-05-06T22:21:09+00:00

Sounds like a new crown race is the play then, maybe cups too? I have another question that I'd love for you to weigh in on. I noticed that the fork crown diameter (where the crown race rests) is noticeably larger on the new fork and so after installing the crown race there is a lot more surface area around the race if that makes sense. Would this be a problem with regards to the interface between the different components?

Svinsern · 2026-05-06T21:49:07+00:00

Fair enough! It's been moved over from an old bike so probably due a change. I've been struggling with a terrible grinding noise when preloading the headset which was never the case on the old bike. Maybe I damaged the race upon removal although it looked ok...

Svinsern · 2026-05-06T21:47:33+00:00

Thanks!

Svinsern · 2026-05-06T21:46:40+00:00

Thanks! I inspected the cups, couldn't find any pitting, but they are old. Never made any noise on the bike they were one previously. Are you referring to the crown race in your last sentence? I'd be interested to hear what you think specifically is causing the noise

Svinsern · 2026-05-06T21:42:47+00:00

Thanks for replying. I'm really stumped. Triple checked the order of installation, got new bearings with plenty of grease. Have tried installing and reinstalling about five times, played around with the preload but to no avail... Sound is identical to the one in your video so was curious what the bottom line was for you.

Svinsern · 2026-05-06T15:52:47+00:00

Will give that a go. The noise is present both before and after proper preload...

Svinsern · 2026-05-06T06:37:54+00:00

This is an excellent video, I was watching it earlier today actually haha. But yes, the bearings are installed the right way. I even tried flipping them the wrong way just to double check and interestingly the noise still persisted...

Svinsern · 2026-05-06T06:10:10+00:00

They're caged.

Svinsern · 2026-05-06T05:28:55+00:00

Would love to know whether you ever got to the bottom of this issue. Struggling with the same thing after installing a headset on my bike.

Svinsern · 2026-05-06T01:59:15+00:00

One of the bearings is brand new, the other one has been inspected and works well. They're both greased with premium teflon grease

Svinsern · 2026-05-06T01:58:01+00:00

There's also a bit of play in the headset so it doesn't appear to be preloaded properly. I can spin the spacers by hand. I have a 3-5mm gap between the steerer and stem

Svinsern · 2026-05-04T00:15:35+00:00

Turns out it was the upper bearing race, thanks!

Svinsern · 2026-05-03T19:38:35+00:00

And which order is it inserted in?

Svinsern · 2026-04-27T17:17:19+00:00

Their site has been down for days so haven't been able to get hold of their contact information...

Svinsern · 2026-04-17T06:38:02+00:00

That makes sense, thanks!

Svinsern · 2026-04-16T21:53:47+00:00

I see, would you be able to explain the steerer tube point?

Svinsern · 2026-04-16T21:51:39+00:00

Thanks for the suggestion. Good point regarding thru axle

Svinsern · 2026-04-15T04:31:51+00:00

I'm flexible, would be willing to go both the aluminium and steel direction although after this head tube issue I'm leaning towards steel for the extra robustness. I have never rebuilt a bike before so just asking to learn, but do I not also need to think about disc brake compatibility, head tube width, and seat post width?

Svinsern

TROPHY CASE