Headset Repair
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- Опубліковано 10 лют 2025
- This video will showcase the complete process of testing, inspecting, cleaning, and replacing the caged bearings in a threadless headset. This process is near identical on most modern bikes equipped with a threadless headset, however this will not apply to threaded headset bikes.
The process is simple, and can commonly be completed with only one tool... a 5mm allen key/wrench. You should be able to watch along with the video while making the repair, and have a fully successful bearing replacement.
There are several different variations of bearings that will fit a headset. Please note that the bearing position is entirely dependent upon the cage. If the cage completely clears the cone race, it should be placed on facing the cone. If it does not clear the cone, it should be on the cup side.
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Both bearings were installed in the opposite direction as it was before. The bottom bearing were facing up (cage down) as you can see here: ua-cam.com/video/tejmD6JC16Q/v-deo.html and were installed facing down (cage up), you can see it here ua-cam.com/video/tejmD6JC16Q/v-deo.html. The top bearings were facing down (the cage were up) as you can see here: ua-cam.com/video/tejmD6JC16Q/v-deo.html and were installed facing up (cage is down) as you can see here: ua-cam.com/video/tejmD6JC16Q/v-deo.html.
I don't know if this contributed to the play in the headset.
👌
Excellent video my friend...clear step by step instructions. You helped me a ton
Happy New Year!
I’ve been looking for a video like this. I’m new to working on bikes and this video was great!!
Great detail and the step-by-step process really helps!
Wow, I can’t believe it was that easy fix. Thank you for sharing this video It helped me a lot with my bikes. I was really frustrating.
Sooo, I've never had a threadless head set bike before. Chose the Mongoose Dolomite ALX for my first one for the sandy and gravel trails out here in the desert of Nevada. I had a few things I wanted to upgrade, specifically today it was going to be the stem...
I put it up on a rack, left the front tire on, removed the top cap and started loosening the stem. I'm sure you can imagine what happened next. Parts scattered all over the floor. I had no idea what went where.
So I want to thank you for this video! Even though the head set isn't identical, I was able to figure out what pieces when where and in what order. Again Thank you!! It rides like a dream now, and pulls the Burley flatbed trailer along behind it great! Great combo those two. If it had a steel frame, I can imagine it would be a rather heavy beast to get rolling, and then add the trailer and prospecting equipment on top of that.... Ugghhh!
Thanks, this help me fix the problem I was having with my headset.
Awesome video. Simply stated and to the port. My bike front is healed now. Thank you
Thanks, very clear. Succeeded with my bike, wouldn't have without you. Cheers
I liked the video simplicity but yet to the point (what I consider the right approach) all well explained, thanks very much for sharing this how to,
Maybe something to consider for future videos lighting, because in some scenes was quite dark
and volume
Yes, the bearing are questionable because of the way they are facing. I noticed that because, according they diagram that I was looking at the bearing where facing the other way around. I'm not an expert. I was just going of the picture diagram for installing my bearing in my tapered headset. Now I have to do some more research. Thanks for sharing the video. God-bless.
I thought that too.
Very nice sir i was suffering from this problem very helpfull
TY for your video- I was installing my bearing upsidedown
Great video. My top bearing is completely bent and deformed. I'll have to put it back together in the mean time until my new bearings arrive.
Thankyou so much bro you helped everyone else was a liability
Thanks for this video. Now I'll go and fix my headset.
U r just awesome bro...the exact problem im facing, due to less mechanical knowledge I can't proceed this further..
Good vid, saved me a few quid from taking it to a shop. :)
Very informative, thank you for posting
Thank you for an excellent explanation
Oooohhh loosen handlebar screws THEN tighten the cap screw. Man, the jiggle was driving me nuts, thanks!
Wow. Diamond back has impeccable welds. I couldn't stop staring 😳
this helped me alot got my sub
Wooohoooo!!! Worked out great!
I have a doubt, why are the bearings not put in the same way how it was, before taking them out. Please let me know
Great work on the upgrade vides. But is the Mongoose Malus, Dolamite and Hitch all the same bike and parts? What's up fellow bike enthusiasts. I'm new here and am just stopping by to say hello. As well as get some help with a recent used bike purchase (Mongoose Malus R5714A fat bike) issue. I'm looking to grease the headset, hubs, bottom bracket, etc. I know I'll need a freewheel/cassette puller, adjustable wrench, cone wrench, standard wrench(s), socket wrench(s), allen key(s), crank puller, pin spanner, etc. What I really want help with is figuring out which size tools I need? Or which bike repair tool kit(s)/set(s) are recommended for this bike model? I'm starting out with zero tools but only want to start my collection with these specific tools.
P.S. I believe the bike to have all its original parts (as per the first and only owner).
Good video I still can’t get my headset Tate it still has that rocking slop in it. I even added a spacer under the stem plug cap to get it tighter and still have slop in it. Any suggestions? Matt. Colorado
Thanks for the video, can you tell me please, out of curiosity, is your upper headset cover sitting flush with the upper bearing cup, I have changed the bearing cups and the bearings on my GIANT Fathom 29er and there is a 1.5 mm gap between the FSA top cover and the upper bearing cup, I might’ve not realised it at the beginning by not noticing it, and is killing me.
Thank you in advance.
Regards,
Florin
Very informative, thanks
Please, if you don’t mind, make a video how to replace the brake pad on the front tire. Because by mistake, I put WD-40 on the front breaking pad and right now it doesn’t work very well and I bought brake cleaner. I sprayed it on it it’s better but still not working properly.
Thank you for sharing idea
Yep my bearings are broken got to buy new ones tomorrow.
thanks brother.
im confused now you put your bearings in opposite of what all the info says online do they go up or down?
Put my head set back on and now it turns after i back the top screw out just a bit could it be because some grease got down into the part that the top screw goes into or is something together wrong, its pretty well a new Deviant built fat bike. Worked perfect before.
Looks like this grease gun works well.
+Johannes Nilsen I love this grease gun. It's gotten tons of use over the years. I find it a lot easier, and more precise, and cleaner than greasing by hand.
for sealed cartridge bearings I have to sue my hands. but I will have to get a zerk grease gun, cus I installed Chris King BB on my old xc bike.
I’ve seen people upgrade from the cup bearings to the sealed bearings but if I can keep using the cup Bearings I will on my Santa Cruz.
Good stuff....
Mine is kind of the same but it gets either too loose or too stiff, I just changed the fork do you think I may need to change the bearing? I will greatly appreciate the help please thank you
You replace your bearing inversely. Incorrect ❌❌❌
I'm just curious, I am going through a Mongoose Dolomite head right now and the bearings seem to go in opposite of the D-Back you are working on in this video. The cage goes to the outside races and the balls go in towards the cups. Just wandering if this is a design difference?
Great question! Short answer is. Yes, this is a different bearing cage style. Thank you for bringing this up.
The position of the cage depends on the cage itself. If the cage is wide open enough to where the balls come in complete contact with the cone on the fork and the cage does not touch, the cage should be placed on the cone side. If the cage does not completely clear the cone on the fork, the cage should be on the cup side (I hope that makes sense).
Ayo it worked and my ass is saved from the shop and the belt
tnq soooo much
Where do you buy your bearings?
Should the dust ring snap on or just set there?
How do I fix Mine on my MTB It’s Like Turn To Another Side And my wheel is straight
Your subtitles abstracing the main views.
6:25 and 12:25 make me giggle
You're welcome! To be fair though, you don't want the balls to be rough between your fingers!
is it okay if you dont have a dust shield?
I opened my headset and my bearings were in about eight pieces
I'm actually not joking. Walmart fucked my ass
@@Professor-8 lmfaoo offerup fucked my ass lmao
😀😂😂😂
The name of the housing lock
and barring
Oversized head sir?
Didn’t help much. Just had to try different combinations w/ parts I got in the mail. Never have had the tightening catch just plunk in. Always have had to struggle to squeeze in straight. Ordered 2, one was even bigger & no way I could get that in. Nasty job.
This headset design is prone to make a mess, water can easily come underneath the seal.
+Johannes Nilsen very true. This is a friend's bike, and it seems to be plagued with headset issues. I think it'll probably get an upgrade sooner than later.
And the bicycle too please
What is the diameter measurement of those bearings? Thanks
This helps me fix my headset but the problem is I have no money to buy a new set of bearings
The sounds quality is horrible. I had to put headphones on full blast and still could hardly hear
Ok
Thank you already fix my forks
Mine also
English is such a poor language 💩 I was searching for 🎧 lul anyway hope it's a useful video I'll let my like anyways
what a mess...