How to Replace a Bicycle Stem

How to Replace a Bicycle Stem - Threadless

Рет қаралды 459,535

Күн бұрын

This video covers everything you need to know about removing and installing a threadless stem from a bicycle, including choosing compatible components, proper spacer orientation, and final centering and headset adjustment.
Questions or comments? Leave them below!
See all our bar & stem videos in our Handlebars & Stems playlist ▶︎ • Repair Help: Handlebar...
Video contents:
00:00 Preliminary Information
03:07 Removal
04:21 Installation
➤ Tools & materials used:
• RR-12 Tape Measure - www.parktool.com/product/tape...
• Appropriate hex/Torx®-compatible wrenches - www.parktool.com/category/hex...
• Torque wrench/driver - www.parktool.com/category/tor...
• PPL-1 Polylube Lubricant - www.parktool.com/product/poly...
• TLR-1 Threadlocker - www.parktool.com/product/medi...
• Supergrip Carbon and Alloy Assembly Compound - www.parktool.com/product/supe...
• Toe Straps/Zip Ties
• Rags
For a text-based walk-through of this process: www.parktool.com/blog/repair-...
➤ Subscribe: kzfaq.info...
➤ Like: / parktool
➤ Follow: / parktoolblue
➤ Fix It:
Did you know that Park Tool is the #1 resource for bicycle repair education?
• Visit our KZfaq Channel: / parktool
• Visit the Repair Help section of Parktool.com: www.parktool.com/blog/repair-h...
• Check out The Big Blue Book of Bicycle Repair: www.parktool.com/product/big-b...
➤ About Park Tool:
Since our founding in 1963, Park Tool has been the leading name in bicycle tools. Our KZfaq channel is an extension of our mission to be the ultimate resource for mechanics and riders of all skill levels. Here you will find comprehensive repair help tutorials for a wide range of components and processes, as well as troubleshooting guides, tips and tricks, and information on the latest Park Tool products.
➤ More Bars & Stems Repair Help:
• How to Wrap Handlebars for Road Bikes - • How to Wrap Handlebars...
• How to Replace Flat Handlebar Bicycle Grips - • How to Replace Flat Ha...
• How to Cut Bicycle Handlebars - • How to Cut Bicycle Han...
• How to Replace Bicycle Handlebars - Flat Bars • How to Replace Bicycle...
• How to Replace Bicycle Handlebars - Drop/Road Bars - • How to Replace Bicycle...
• How to Replace a Bicycle Stem - Quill Stem - • How to Replace a Bicyc...

Пікірлер: 189

@dlloyd6300 4 жыл бұрын

If you don't have a micrometer to measure diameter on the parts, take a crescent wrench, adjust to the tube you are measuring, then place that over a ruler to gauge the diameter. Upvote this comment to help people!

@redtobertshateshandles Жыл бұрын

Or buy a $10 or cheaper plastic vernier. I've had mine for at least 25 years, they're broken but I still use them. For super critical stuff I have a micrometer. The shifter trick is just too povo. Lol . 😆

@tacconelli 7 ай бұрын

Never thought of that. Thanks!

@jimqpublic2 Жыл бұрын

I stopped riding 23 years ago when kids arrived, now my son and I are back into it- with old school and new bikes. Now a lot of the tech has changed- but Park Tool is still on top of it! I appreciate the great tutorials.

@OrientEspresso 2 жыл бұрын

Migrating from a quill stem bike from '98 to modern steering tube assembly. This is perhaps the best instructional video I've ever seen on youtube about anything... terrific and comprehensive job!

@DavydovAlex 2 жыл бұрын

Really appreciate this series of professional bike maintenance videos from Park Tool! So hard to find a source of reliable expert information on the subject these days.

@NeilWNC 2 жыл бұрын

I recently purchased a bike with this kind of stem and had NO idea how it was put together, nor how to adjust things. This great video is so helpful, thorough and really well presented. Many thanks!

@mypojam Жыл бұрын

I know everyone have been praising this video, but I still need to leave a comment praising it. What a perfect tutorial video! Bravo team

@hafizabbas5479 Жыл бұрын

evergreen tutorial for newbies like me...planning to buy stem extender to make my handle bar higher, but after watching this i just install the stem in down position..simple & save my money!

@tomarobert-marian2198 5 жыл бұрын

thank you for your work in this material !

@m.pantazis3718 4 жыл бұрын

Great tips! Toe straps as holders/restraints is brilliant!

@marchaywood9378 3 жыл бұрын

Hi, thanks for this, really helpful for me as a beginner maintainer at 53! You are helping prove it’s never to late. The format, structure and commentary is ideal.

@Blinkman24 4 жыл бұрын

These videos are SOO helpful! thankyou!

@Ceremony64 3 жыл бұрын

Fantastic tutorial videos. Seriously, every question that pops up always get answered at some point in these videos. Top notch content!

@davidholmes3449 2 жыл бұрын

The ruler is genius struggled for years with this not anymore keep the good work up

@ziliestarrive 5 жыл бұрын

this is super helpful, thank you!

@danfuerthgillis4483 3 жыл бұрын

Many road bikes do not use the small 5 mm spacer under the top cap. The reason is the expander plug is put in and the extension bar then slides up 3-4 mm pass the top of the plug metal head. This allows for the bottom of the expander plug to protect the carbon steerer on the bottom and top bolts of the extension bar. Always use a 4 cm expander plug this way you can the 5 mm spacer, a smaller expander plug is really for slammed stems, also check the inside of the extension bar and make sure it is smooth and has no rough edges on the clamp hole area. I have seen tons of high end road bikes where there is a 4 mm gap on top and the cap tightens with no spacer underneath it.

@infundere 5 жыл бұрын

Amazing video through and through.

@kennethhowell5291 2 жыл бұрын

Thank you! You saved the day for me, and my bicycle is still in one piece!

@tewsrus 2 жыл бұрын

Thank you for this video. It is just what I needed as a beginner on this topic. Very understandable with the dialogue and visual together.

@MatyasLemberTutorials 3 жыл бұрын

Thanks a lot for doing these videos! So helpful with the visuals

@albievickers590 3 жыл бұрын

these are wonderful and never get old

@JackSmith-ig7lg 3 жыл бұрын

You guys are awesome I can’t tell you how much your videos has helped me thanks for your effort with your videos

@heliogoncalves2870 4 жыл бұрын

Best bike repair videos ever 👌🏻

@boatman222345 3 жыл бұрын

Excellent video. Very detailed and clear!

@floriankronert6133 Жыл бұрын

Thank you so much for your tutorial videos. Thanks to this one I was able to shorten my stem on my own - now my Cannondale CAAD 4 fits me way better. Of course I used Park Tool tools for doing it, they feel great!

@yuukiokazaki3543 5 жыл бұрын

Saw the email notification, jumped right into the video. Anyone else planning on binge-watching Park Tool videos this week?

@p504504 3 жыл бұрын

Yes but Calvin Jones is the best.

@khairulkhai7815 2 жыл бұрын

Thanks for the videos. It really helps me when i changed my stem and handlebar position. 👍👍

@johnkennedy4201 4 жыл бұрын

Excellent easily understood video.

@tradingtips1103 4 жыл бұрын

I found this vid really useful credit to you guys

@AwayToKpax Жыл бұрын

This is really, really insightful. Thank you for uploading this video!

@ryanarmishaw3305 2 жыл бұрын

Another very helpful video! Thank you

@Australia-ky7kx Жыл бұрын

Excellent professional quality video on an important subject.

@regis387 Жыл бұрын

as always - top notch!

@hasbulrizaishak3035 4 жыл бұрын

Very helpful 👍

@AlejandroGarcia-my7hb 3 жыл бұрын

Great! I was having a lil wiggle in mine..salutes from phoenix,az

@NickW90 Жыл бұрын

Very informative thank you

@MultiMonitor Жыл бұрын

Thanks, this helped me along.

@dakiro222 3 жыл бұрын

Sooo good. What you need to know.

@mangjosejunior438 3 жыл бұрын

Awesome channel.very helpful

@itaymarom8241 Жыл бұрын

Excellent and professional

@axiekid3272 4 жыл бұрын

Thank you sir for good video nice

@stevenwreyford4570 3 жыл бұрын

Great content

@kevinrenaud 4 жыл бұрын

Super helpful. Just changed mine for the first time, thank you!

@maryjunquimbo5773 3 жыл бұрын

Very useful ..thanks

@imambm5638 3 жыл бұрын

Great explanation dude... very usefull.. 👍👍

@davidreeves3396 2 жыл бұрын

Clear coherent explanation and procedure of how to complete this task. The down arrows. Could be from authors of the abundant; poorly conceived videos or bike shops attempting to limit knowledge.

@roiwilzenalcantara1960 5 жыл бұрын

wow very informative, never knew those small details

@martinaxe6390 4 ай бұрын

Bonus tip to help make sure that steerer tube is tight: Place the front wheel snug against a wall and firmly (not violently) pressing down on the stem while sitting on the frame top tube. This should sit everything tightly before tightening the top screw.

@SaadKidwai 4 жыл бұрын

Thank you

@krishnansrinivasan830 Жыл бұрын

Awesome & Thanks :)

@badumakatataka991 5 жыл бұрын

I like your videos 👍

@papalouie5187 4 жыл бұрын

I like the ruler trick to align the fork & handlebar.

@gotredeemed 3 жыл бұрын

Thanks. I found an extra shim on the top and moved it to the bottom for added height.

@tiktokmedia5985 3 жыл бұрын

Thanks

@badumakatataka991 5 жыл бұрын

I did that accordingly instruction before I seen that :))))))

@lachlan1971 4 жыл бұрын

I've been doing it right all along! Go me!

@jonwebster1670 4 жыл бұрын

The video was very helpful, thank you. I have a question. Is it okay to have a gap of about half a centimeter in between your two stem pieces? I ordered the right size but they are not coming together around the handle bar with a tight seal.

@lllBASlll 4 жыл бұрын

6:10 - 6:31

@josereneducharme142 5 жыл бұрын

The ruler trick rules!

@chrislardizabal3749 3 жыл бұрын

I like the background tune

@dasbabu7261 Жыл бұрын

Make a video on changing the derailleur shifters and how to fix front derailleur barrel adjuster if doesn't rotate clockwise or anticlock wise

@redtobertshateshandles Жыл бұрын

Thanks for these videos. Please ignore the ignoramuses.

@djismarcosta 5 жыл бұрын

I like☺

@lazurm Жыл бұрын

Is there a rule of thumb for the space between the stem and the faceplate? After putting on a new stem my space is about 5 millimeters but the bolts are long enough to be quite inside the stem.

@ENDrain 3 жыл бұрын

I have a folding bike with telescopic stem. Would appreciate a video on those.

@manikuttan910 4 жыл бұрын

Pls make a video for replacing the suspension forks.......

@nbb5026 5 жыл бұрын

So grease or threadlock on faceplate bolts? My bike had what looks like blue loctite on the faceplate bolts.

@parktool 5 жыл бұрын

If the bolts were clean/dry, with nothing, grease is good thread preparation. You likely had an aerobic thread locker, installed dry. Run them as they are, without grease. The dry locker provides some prep for the thread.

@jameschimombe9882 4 жыл бұрын

How to make handle and wheel straight?

@tmyles9017 3 ай бұрын

Love this Animal Crossing track.

@diggumvt04 5 жыл бұрын

I can’t unscrew my top stem cap, it just keeps turning and turning and won’t completely unscrew.... any tips? I’m trying to eliminate all play in fork and headset

@wjlasloThe2nd 2 жыл бұрын

Installation in written form: Set bike on ground, ensure full stack is entirely seated. Set stem height. Stem or spacers should be ~3mm above the top of the steerer tube. (For carbon forks, steerer tube MUST go entirely through stem. Use spacer on top to get the 3mm) Grease on topcap bolt, install. Snug down, tune later. (Carbon bars - put on assembly compound) Grease OR threadlocker on faceplate bolts. Thread in bolts. Tighten lightly but evenly according to stem design. Set bar roll, center bars. Fully tighten faceplate bolts (4-6Nm) in X pattern. Snug topcap down until there is slight resistance. Bars should turn with almost no resistance. If there is, loosen by 1/8 turn at a time. Straighten handlebars to fork. Snug pinch bolts. Test for play in headset by holding front brake and rocking forward and backward. Feel for play at headset. If there is play, loosen pinch bolts, tighten topcap 1/8 turn, retighten pinch bolts and try again. Tighten pinch bolts (4-6Nm).

@AudiBunyamin Жыл бұрын

Hi ParkTool. I need some advice on my stem. I just bought a renthal apex stem. While installing to my rockshock recon fork, i realized it was too tight to enter. So I used a rubber mallet to knock it in. But after one ride, i noticed there is some play on the headset. Can i get an expert advice on what should i do?

@parktool Жыл бұрын

It sounds like you may need to add another headset spacer. Loosen the fixing bolts on the stem, add the spacer then tighten the top cap and i'm guessing you will be off to the races. Hope this helps!

@_stax_7168 4 жыл бұрын

I got a new race face chester stem... And a torque wrench... On the sides of stem is written that you need to tight bolts to 12 Nm (steer tube bolts). Im little bit confused because in the video you said that a typical effort is about 4 to 6 Nm. Thank you.

@parktool 4 жыл бұрын

Go with the manufacturer. The 6Nm is more common on the four bolt face plates for the bars. Again, manufacturers rule....as long as it makes sense.

@xuannhapham9964 5 жыл бұрын

Đẹp thích .

@gza4704 5 жыл бұрын

I've a nobrand stem without any indication about size. How can I measure it? Should I consider the internal diameter with the bolts fully tightened?

@parktool 5 жыл бұрын

If you remove the faceplate and measure from the diameter of the half round section what number do you get?

@gza4704 5 жыл бұрын

@@parktool 25.2 more or less, measured with a classic caliper

@jrpzjrpz24 5 жыл бұрын

@Park Tool Is there a desired steer tube length height? I'm 5.5" my new bike frame is 13" takes 700c wheels so, how high should my handlebars be adjusted to the steer tube?

@parktool 5 жыл бұрын

Steer tube height is mostly personal preference. Longer will offer more adjustability. Shorter may give you the visuals or fit you are looking for. Just depends on your fit and where you need to be positioned.

@absolutemtb6696 2 жыл бұрын

@@parktool Hello there i need your help in something i have a question about my bike it’s a Scott ransom 910 2021 you see when ever i wash my bike with muc off soap and water i get a creeking sound from my headsets and it was so annoying that I couldn’t find what’s causing this till I opened the headsets and found out that when ever i wash it the grease from The headsets bearings fell of completely cause of the water and starts creaking like crazy but wait why the grease is dropping after i hose my bike its because it’s not a waterproof grease but that shouldn’t fix the problem that means i have to put fresh grease every time i wash my bike till I found out that the headsets that came with my bike from the factory it doesn’t has a washer completely like no washer whatsoever now my question is this and I think it’s the solution for my problem I’m willing to replace the headsets and the stem just to buy a headsets that has a washer i got In mind cane creek branch their the best I think anyway Since I have a square shape of headsets and square shape of spacers I’m forced to buy a new stem and a pare of new headsets that comes with a washer my only problem is that I don’t know if their is a measure I should take in min when ordering a new headsets with rounded spacers could you help me I really appreciate that thank you waiting for your reply thank

@frafra224 6 ай бұрын

Hello sir is a torque key needed if my bike is all aluminium?

@aar0nlam856 4 жыл бұрын

on my stem, theres some sort of cover that doesnt let me access any bolt or anything at the top. what can i do in that case?

@parktool 4 жыл бұрын

Some stems have covers like that. Those covers should be able to be removed to allow access to the stem bolts. Send an image to tech@parktool.com if you would like a better idea on how to remove the cover.

@eastcoastm3 4 жыл бұрын

Aaroneki you can lift/pry that small center rubber piece with your fingernail. Just don’t use sharp metal tool as you will scratch the bikes finish.

@vaccumme 3 жыл бұрын

I have a Giant City Escape that I would like to bring the Handlebars UP 2". What are my options ? Please Advise. Ted.

@unclefreddieDied 3 жыл бұрын

maybe... new head that's angled up... maybe restack the spacers...

@fredrickmata3476 3 ай бұрын

Can I go from a thread to non thread? If so is it the same procedure?

@user-go8oj4dl4w 2 жыл бұрын

My old stem had a little plastic spacer that filled the compression slot on the rear of the stem. It has two holes for the bolts to pass through. Is this just an optional, aesthetic thing? My new stem didn't come with one and I can't see any images of other stems using a spacer, they just have a gap it seems.

@parktool 2 жыл бұрын

There are stems that do this and is part of the design. If it is there, leave it in place.

@johno4521 3 жыл бұрын

A good job I watched this video; I checked my front brake hose & it's stretched to the max already :-(( won't accommodate a steeper stem.

@hasurohit4780 Жыл бұрын

How many types stem available??how to measure size ??

@marshallgoldberg8376 4 жыл бұрын

Grease or thread locker... Should the torque value be reduced 20% when one of these lubricants are applied?

@parktool 4 жыл бұрын

Check with your manufacturer for greased or non greased specs. Typically these are spec'd with grease but some models are spec'd dry. Very very few though. Typically only if Ti hardware is involved.

@Dg-_-71044 4 жыл бұрын

can you enlighten me on one thing? you say stem/spacers have to be a lil bit over steertube, why? what will happen if it's flush or below??

@parktool 4 жыл бұрын

The reason for the stem or spacer to be above the steer tube is to allow the top cap to do is job. The top caps job is to pre load the headset bearings to get rid of any potential for play. If the spacer or stem is below the steerer then it will be near impossible to get a correct headset adjustment.

@Dg-_-71044 4 жыл бұрын

@@parktool spot on thankyou! changing headset soon and i just wondered the ramifications of it being short,

@Rgun77 2 жыл бұрын

Hello....what do you do if the bolt holding the stem top cap doesn't come off? The bolt is free spinning. Thanks

@parktool 2 жыл бұрын

If the steerer is metal then the star nut has gone bad. Unfortunately it may be best to drill the head of the bolt out and then use a punch to pound the star nut out the bottom and replace. If the steerer is carbon then you may just need to use one size smaller hex key to tighten the expanding plug and then loosen the top cap.

@marcgasper8226 4 ай бұрын

Can I leave more than 3mm between steer tube and the stem (stem above the steer tube), and by how much? My stem is too low and additional 5-7mm rise could be enough for me. Would that be a hazard? I could get the stem riser, but that is way too high even if I point the stem down.

@parktool 4 ай бұрын

More than 3mm is not advised. Its hard to say if or when you will ahve a problem going higher than the 3mm but it is not advised. It may be safer to look for a bar with a higher rise or a stem with a higher rise.

@marcgasper8226 4 ай бұрын

Thank you.@@parktool

@sagarwangikar1077 3 жыл бұрын

Sir please tell me how to remove stem when alen screw is stripped I am not able to remove the screw

@parktool 3 жыл бұрын

You will need to remove the screw by either drilling it out or using a bolt extractor to remove the bolt unfortunately.

@interceptor7905 3 жыл бұрын

Or you can try hex key one size bigger

@redtobertshateshandles Жыл бұрын

You can put outward pressure as you turn the bolt. It will back out.

@unclefreddieDied 3 жыл бұрын

4:45 I had some play cause my steerer tube was about 1/4" above my stem... I didn't think that this could cause it, but I was wrong! threw another spacer in the mix and problem solved!

@YoMumzinnit 4 жыл бұрын

If I’m south of the equator, is it “lefty tighty, righty loosey” or is it still “righty tighty, lefty loosey”?

@billsummers6918 4 жыл бұрын

No, you're just upside down.

@annieosullivan8195 3 жыл бұрын

South of the Equator also; it's righty tighty, lefty loosey unless it's a left hand thread

@xts_eddy9527 3 жыл бұрын

My stem doesnt have a bolt on the top cap?

@GraphicApe Жыл бұрын

Quick Q - if adjusted correctly, with play removed - and accounting for correct procedure + 3mm gap, should the spacers be able to rotate (with high effort)?

@parktool Жыл бұрын

They will rotate with a heavy amount of effort. But should not be anywhere near easy to rotate.

@GraphicApe Жыл бұрын

@@parktool Hi - great thank you, this was the missing piece of the puzzle for me!

@abuzarnoob5665 Жыл бұрын

wht size of l keys a need for th clamp bolts please answer

@parktool Жыл бұрын

That can vary with the brand. 4, 5 and 6mm are seen. The T25 torx is also seen.

@sihtosoveltaa6936 5 жыл бұрын

You should include the bike models shown in the video, that kona looks damn sexy!

@mattgies 5 жыл бұрын

It's a Honzo ST (legible on the top tube at 7:33). 2018 colors, I think.

@clearcreek69 9 ай бұрын

I can picture myself removing the top cap & having the forks fall to the ground, before I realize that I should've secured the forks in place

@nxxbs_btw5568 2 жыл бұрын

what if my headset doesn’t have a cap and is just a hole with a strange hex shape going through the fork

@parktool 2 жыл бұрын

What bike is this on?

@robieosborne7369 5 жыл бұрын

Lmaoooooo @14-15 seconds. Who made you look? :p

@michelemize 2 жыл бұрын

Is it better to switch the stem rather than using shims for a mountain bike?

@parktool 2 жыл бұрын

It is better to replace the stem. Typically an adaptor is used when parts are not available or when money is looking to be saved.

@TownofJezza 4 жыл бұрын

5:26 the compression plug in the carbon steerer is too low - the top stem bolt has nothing to press against

@234wdsd8 4 жыл бұрын

my fork doesnt have anything at the top jjust normal metal or whatever what does that mean

@parktool 4 жыл бұрын

Is your fork new?

@234wdsd8 4 жыл бұрын

@@parktool no i bought a second hand fork off ebay

@DarthPingu07 4 жыл бұрын

When I do this my fork always slips and I end up with loads of play 😕

@parktool 4 жыл бұрын

Sounds like you should grease all your stem bolts and tighten everything down. When the bike is built is the best time to check this over. After bike is built it should be checked on a regular basis.

@MrStruggle0 3 жыл бұрын

Make sure your stack height is taller than your steerer tube

@unclefreddieDied 3 жыл бұрын

@@MrStruggle0 thank you all... I just did this... noticed some play in the fork... I have the steerer tube sticking out about a 1/4 in, after I swapped out the stem. didn't think it would make a difference.. gonna order some more spacers today THANKS!

@unclefreddieDied 3 жыл бұрын

would you recommend I tighten everything while the bike is supported on a stand or sitting on it's wheels?

@MrStruggle0 3 жыл бұрын

uncle freddie lol I made the same mistake, I would suggest doing it on the wheels so that the fork can kind of push itself in instead of you holding it (worked for me)

@_stax_7168 4 жыл бұрын

Can i do it without a torque wrench?

@parktool 4 жыл бұрын

You sure can. Tighten the bolts evenly till the bars do not rotate on either axis. You could also use perceived torque.

@_stax_7168 4 жыл бұрын

@@parktool thanks👍