Questions tagged [stem]

The stem is the part of the bicycle that secures the handlebars to the fork.

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votes
1answer
32 views

Tightening steerer expander/compressor and spacer positions with a carbon fork

I had ugly clicking noises coming from the headset before and after a warranty exchange of a fork (the reason for the exchange was on the other end). I have identified the clicking as coming from the ...
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0answers
37 views

How many degrees does the stem of a Canyon integrated cockpit rise?

I am plotting a Canyon Ultimate bike on BikeCad, but I can't find how many degrees the stem rises. The stem is part of the Canyon H36 integrated cockpit. In general, manifacturers of integrated-stem ...
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1answer
99 views

Raising handlebars using a stem raiser on B'twin Triban 500

I've just got a second hand B'twin Triban 500. The seat goes easily high enough, but I've not used a road bike before and the handlebars are far too low for me, even with all the spacers in place. I ...
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3answers
6k views

25 degree rise stem vs 6 degree rise stem with taller head tube - how is handling affected?

All, I’m shopping for a new road bike with endurance geometry (more upright position and shorter top tube), 9mm drop saddle-to-bars. I’ve had a Guru fit done by a professional fitter. The main ...
3
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3answers
346 views

Replacement stem cap and bolt

Our oldest son has been alternating between mine and my wife’s bike (Carreras from Halfords) whenever he has to go anywhere, but over the last week or so we noticed he had stopped using my bike, ...
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3answers
216 views

Bike fit: Adjusting stem angle vs. height

I'm playing with my fit a bit as I have gotten much more flexible since I had a bike fit 2 years ago (+1 to stretching and foam rolling.) As I'm experimenting with drop I am wondering if it makes ...
11
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3answers
14k views

Attaching a stem to a carbon steerer: how much torque?

So I decided to travel with my bike this week and to my surprise discovered that the steerer is carbon fiber. I had removed the stem from the steerer for packing but naively assumed it was aluminum ...
2
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2answers
83 views

Broken bearing cover near stem

I have a small issue with a bearing cover/seal (not sure how it's called properly) that I would like to fix. I'm attaching the picture for clarity. I imagine I should just replace the part but I have ...
4
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2answers
4k views

Handlebar stem : height vs length

I want to decrease the reach of my handlebars. Does it matter whether I increase the height or get a stem with a smaller length(extension?) on my bike? And is there any way to calculate the relation ...
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0answers
54 views

Custom dutch bike project [closed]

Here I am a Kiwi in the Netherlands with a little dutch bike project underway. The internal of the steerer tube is 19.3mm (give or take) so I am unable to put a 1" - 1" 1/4 (32mm Handlebar diameter) ...
5
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2answers
917 views

Is my carbon fork steerer tube damaged by overtightened stem bolts

As per the title: I've had my bike serviced by a bike shop, who helpfully tightened up the stem cap and pinch bolts on my headset. I rode it approx 15 km (9 miles) and I noticed some play in the ...
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2answers
118 views

What are the pros and cons of suspension seats and suspension handlebars?

The title says it all, but I’ll add more specifics to give a better understanding of my particular situation. I am a on-road commuter with little-to-no dirt roads in my routes, many of the roads are ...
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5answers
528 views

Can a hybrid bike's stem be slammed to make it nearly as fast and powerful as a road or cyclocross bike?

Can a hybrid bike's stem be slammed to make it nearly as fast and powerful as a road or cyclocross bike? More aggressive positions are thought to improve power transfer. That means a better workout ...
3
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6answers
9k views

How do you make the handlebar stem straight?

I adjusted my stem height the other day, and since then, the stem hasn't felt straight. I've attempted to straighten it a few times, but because I'm just eyeballing it, the handlebars don't quite seem ...
4
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1answer
2k views

Broken stem, how to fix?

My crappy bike (Aldo Cadenazzi) was squeaking for the last two days. Then today the stem broke. Luckily I was very slow when it happened. How can I fix it? I have read a little bit about threadless ...
3
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2answers
147 views

Reducer for 1“ fork and 1 1/8” stem

So I have a steel road bike which orignially had a 1" threaded fork. I replaced it for a ahead fork and have been using this with a 1" Ahead stem without issues. The stem was just a temporary ...
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2answers
62 views

Problem at bottom of threaded stem

I just bought 2002 Specialized Expedition Elite 3×9 speed bike. The bike comes with stock threaded stem. It was taken apart for service. And upon reassembly the bottom of the stem is catching and not ...
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2answers
67 views

How do I adjust this adjustable quill stem? Any ideas? [SOLVED]

I can't tilt lower the stem. There is a bolt underneath the horizontal stem. I loosened it and am able to tilt the stem up from 30 to 40 degrees. I want to lower it though but for some reason cannot ...
0
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1answer
279 views

Short stem & riser bars on XC [closed]

I found a crack under my handlebar and I'm thinking of buying a riser bar and a shorter stem for my mountain bike. is it a good idea? I don't ride on trails, not because i don't want to, I just don't ...
0
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1answer
107 views

Why does my stem have no bolts?

I am fixing this bike for a friend. The headset is wobbly. All the instructions I find online for how to tighten it stress loosening the stem bolts first, but this bike has none. Is that why, despite ...
0
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2answers
109 views

Wobbly stem: serious issue or not?

I went test riding a second hand bike. During the test I have found that the stem was wobbly around the axis defined by the red star in the picture. I have tried changing the tilt of the stem to ...
2
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1answer
135 views

What's this part from inside the steering tube?

I wanted to replace a stem with a new one, so I first tried to screw the top cap off. What happened is that instead of the cap, the piece in the picture came out. What is the name? Is it bad that it ...
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16answers
15k views

Is reversing the stem (pointing it backwards) a safe way to reduce reach length?

Assuming a steerer/fork/brake/cable setup that does not rely on the stem facing forward: is it safe to point a stem backwards as a way to reduce seat-to-bar reach (i.e. as a way to 'fit' a too-large ...
2
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2answers
829 views

What's the difference in threaded and threadless headset and stem

What's the difference in threadless and threaded headsets and stems? Why change it? is it because it's easier for maintenance?
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5answers
2k views

Broken stem tube – LBS “just” lowered handlebars. Is this safe?

I have asked this elsewhere on the internet as well, but this is the Stack Exchange adaptation. I have three related questions and I'll try to make it clear what they are. Here's some background ...
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2answers
166 views

How to read stem measurements?

I'm thinking of getting a shorter stem for my road bike. But I don't understand how they measure in terms of lenth and angle. I measured it from center to center and it came up to 4.25 inches. I'm ...
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2answers
112 views

Can anyone help me identify this stem binder nut

This nut (pictured) fits the binder bolt from a vintage 3ttt stem. I would like to know the name of this nut, or the type of nut this is so that I can try to buy more. So far, I've found similar ...
2
votes
2answers
3k views

How can I find the perfect handlebar height?

I test-rode a bike (2018 Specialized Rockhopper Sport) and I liked everything except the height of the handlebars, and it's the XL size so there's no larger option available. I feel like it would be ...
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1answer
2k views

How to adjust the handlebar alignment with front wheel?

I have the follwing stem My handlebar is a bit too much right and I am not sure what screw(s) I have to loosen the one on top (in the headset) or the two left on the picture above or maybe all of ...
4
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2answers
659 views

Another stem diameter question (French steerer)

The steerer in the French bike I'm restoring has about .2mm less diameter than "regular" ones. With some grease, I manage to fit the "regular" cinelli stem I will use into the steerer. (Mine is the ...
3
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1answer
1k views

How do I remove my bicycle handlebars that are connected by a single rusted bolt?

I'm trying to remove the HANDLEBARS from the stem of my bike and the handlebars are put into the stem and secured with a bolt. However, the bolt is rusted and will not budge no matter how hard I go at ...
2
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1answer
396 views

How can I tilt up a stem of my bike's handlebar which is held by two bolts?

I bought a second hand hybrid bike and would like to adjust the stem of the handlebars such that I can ride it in a more upright position. The following photo shows a side view of the stem with an ...
2
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1answer
649 views

Can tricep pain be cause by having a smaller bike frame?

Some context, my boyfriend bought a used carbon frame bike because it was a good deal, I feel like recent tricep soreness is caused by his biking on a bike that is too small for him or wrongly ...
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2answers
544 views

The stem connects the handlebars to the…?

If this is a stem... ... what's this? I'm asking because I need to buy a taller one so I don't have to bend over as far. It's not convenient to buy a new bike, and I already have an adjustable stem ...
5
votes
1answer
2k views

Can't Tighten Handlebars

I have an old Trek mountain bike with a "Traditional" handlebar stem (Quill stem?) and I've suddenly become unable to adequately tighten the stem to a) remain in line with the wheel and b) stop the ...
5
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4answers
3k views

Would Lowering my Handlebars Help my Performance?

I ride now with pretty decent comfort, I have no real back/neck/shoulder pain. As I ride now I feel decent, but I feel as though I might be in too much of an upright position on the bike to get the ...
19
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6answers
5k views

Deterrents against partial (component) theft

Big question: Is there any way to increase the security of bolted on portions of a bicycle? Specifics: I cycle as my primary mode of transport (in East London) on a early 90s steel road bike with ...
2
votes
2answers
682 views

Lowering the stem on a Canyon Endurace

I have a Canyon Endurace XL frame with a 110mm stem which I currently have slammed. I've started racing this year and am very comfortable in the drops for the entire race, which makes me think that I ...
1
vote
1answer
402 views

Replace / Repair Diamondback bike stem

I have a Diamondback Edgewood 26" hybrid bike. I believe it is a 2008 model. Mostly it's a great bike and it certainly serves my needs right now. However, the stem has become loose so the ...
2
votes
1answer
102 views

Handlebar of my bike will not bolt onto the front forks

I decided I'd like to remove my front brake from my bmx, but having looked closer i realised I was looking at a gyro brake system. I proceeded anyway, thinking this wasn't going to be a problem, and I ...
5
votes
1answer
3k views

Are stem height extenders safe to use?

I was trying to determine the longest length I can safely cut my steer tube, then I learned about stem extenders. I have to wonder, if you cut your steer tube to the maximum recommended length for ...
3
votes
1answer
610 views

Longer stem, need to re-cable?

When I got my bike built, I chose a 60mm-long stem. It's a single-speed bike with front and rear cantilever break (cyclocross model.) After riding on the bike for a couple of months, I have decided ...
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vote
1answer
198 views

Straight 1" OD quill stem for Townie

I have an Electra Townie with handlebars offset 2 1/8" forward of stem tube. Is there a replacement quill stem available that would line up handlebars with stem tube? Center of handlebars needs to ...
2
votes
3answers
2k views

Tall rider - good cockpit/body position for downhill

I have been riding mountain bikes since a long time, and I am riding only downhill/bikeparks since 2009. I've had several bikes, but I've never been in a real comfortable position when riding (or if I ...
3
votes
1answer
171 views

Why is my stem shim angled?

This is what my stem shim looks like: Why is it angled like that? Does it have a purpose? I lowered my handlebars and with that angle it looks hideous. The stem sticks out over the spacers now. When ...
2
votes
1answer
390 views

Minimum insert for stem: line or arrow

I would like to raise my handlebar and have come across the following markings on my stem. Can I raise this stem only until the upper arrow disappears or does "Min Insert" refer to the line below and ...
4
votes
2answers
758 views

Increase the height of my handlebars to reduce back pain

I have an early 80s Trek 970 Single track that is an awesome bike, but as an older rider who doesn't ride trails as much, would like to ride in a more upright position. The handlebars are for the ...
6
votes
4answers
13k views

Bike is slightly too large, shorten the stem?

I feel that my bike frame is slightly too large because I'm stretching out quite a bit even when on the hoods. I'm considering swapping out my 90mm stem for a 35mm or 40mm stem It seems like these ...
0
votes
1answer
542 views

Quill stem diameter not matching the fork…possible to get around this?

I refurbished my bike and in the process got a new shiny quill stem to replace the original threadless stem. Unfortunately, like a dunce I forgot to ensure that the diameter of the stem adapter (the ...
9
votes
3answers
43k views

Better solution for uncomfortably low bars: a stem riser, or taller stem?

I've got my (threaded) stem at the maximum height, but I'd be more comfortable if the bars were higher relative to the seat. It would be uncomfortable to lower the seat any further. I was intrigued ...