Questions tagged [mechanical]
Repairs, maintenance, mechanical issues, or drivetrain parts.
14
votes
8answers
3k views
Loose spokes after only a few rides
I have recently joined the cycling world after committing to losing weight. I am a heavy rider at about 28st (390 lbs) and have after some advice gone for a GT Avalanche. I have had the bike less than ...
1
vote
1answer
98 views
Clicking noise when cranks rotate
I've got an old `86 Raleigh fixed gear bicycle that is making a loud clicking noise when the cranks rotates. It seems to have just started doing this today. I'm looking for someone who, maybe has ...
1
vote
1answer
44 views
Chain getting stuck between large chain ring and front mech when changing into big ring
15+ year old Scott MTB. When changing gear from mid to large chain ring the chain gets pinched between the mech and the large chain ring. Tried adjusting the max min screws, problem persists. Old bike ...
3
votes
1answer
123 views
Lost power when chain is not lubricated properly
Does anybody know how much power is lost when the chain is not lubricated properly? I drive a rather heavy bike and experienced that when the chain is not lubricated it definitely has an effect. Can ...
0
votes
1answer
62 views
Mechanical disc rotor for CUBE MTB - front wheel : Shimano 559x17-21c
Seeking advice with regards to the size of disc brakes for front wheel.
Cube mountain bike. Front wheel: Shimano 559x17-21c. Disc brake: Shimano brake disc sm-rt 10 Centre Lock 160mm
Could you ...
1
vote
1answer
67 views
How to fix a crack in a silicone grip
I have a brand new pair of silicone grips. Somehow, one of the grips got a crack. Its mostly an aesthetic issue, as no fragments of the grip where lost.
Is there any glue appropriate for silicone to ...
6
votes
3answers
619 views
Replacing an FSA chainring
I would like to replace my chainring for a bigger one.
I looked up my bike specs and it comes with a FSA CK-316BT, KSS, 42T chainring. I couldn't find any information about this, so I don't know how ...
3
votes
1answer
135 views
How can I un-seize track nuts?
I bought a set of these about 18 months ago now and for a little while they continued to work as they should but then now they're seized up.
Is there anything (short of ordering another pair) I can ...
1
vote
1answer
89 views
What's that thing at the bottom of the fork steerer?
You know that slanted metal thing on the bottom of the fork steerer that can slide around? Like, the diagonal cut thing at the end that you insert into the hole when you assemble a bicycle? What is ...
2
votes
1answer
112 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 ...
1
vote
1answer
130 views
How to change small chainring
I have a bike with a 46/36T crankset (FSA Gossamer Cross BB30) and I'd like to change the small chainring to an even smaller one.
Googling around suggests that the smallest chainring I can get for ...
5
votes
2answers
183 views
What are cheap options for an extra set of brake levers for mechanical disk brakes?
A quick question. I want to have an extra pair of brake levers for my mechanical disk brakes set at a different position on my handlebar(s), and I want the whole upgrade to cost as little as possible. ...
3
votes
2answers
564 views
Wrench to be used with a bottom bracket tool?
It looks like a wrench with a cup at the endpoint. I was wondering what is this tool called and whether it's meant to be used by itself or in combination with a bottom bracket tool, like the PT BBT-22,...
0
votes
1answer
57 views
How to find a fitting drivetrain
I'm currently building up a new bike from a vintage Scott Windriver MTB frame. My plan is to install a Shimano Zee 10-Speed drivetrain because I don't really need more gears in my area, I want it to ...
3
votes
1answer
58 views
Rear gear change misses 1 gear
Hi I have a 9 speed setup with the derailleur that springs to the largest cog.
My problem is that when I change through the gears one at time it misses 1 whole gear in the middle. It doesn't sit and "...
5
votes
1answer
90 views
Why does my chain have a single hollow pin?
I have some version of a SunRace 10-speed chain, and I'm curious as to why it seems as though each pin is a regular "non-hollow" pin, and a single one on the chain is hollow. Is this some kind of a ...
0
votes
2answers
55 views
How to configure my rear suspension
I recently bought a second hand bike, that got through quite some repairs and testing at a nearby bike store. They fixed some issues and put the bike into cycling condition, as well as changing the ...
2
votes
2answers
306 views
Help! I've rounded off my bolts!
I was working on my bike and was about to add some more tension to my SLX clutch mech. While trying to remove the clutch cover I accidentally rounded off the bolts, so I have no way of getting the ...
0
votes
1answer
101 views
Bike re-assembly gear and noise issues
I had an old general purpose bike that I wanted to use exclusively with my new turbo trainer. I ended up taking it apart almost completely and of course I did not take pictures so re-assembly was a ...
5
votes
2answers
413 views
How to reassemble a completely disassembled brake caliper?
I have mechanical disk brakes in my XC bike and in the process of replacing the brake pads, I completely opened the insides of the brake caliper. There were three ball bearings and a spring attached ...
4
votes
6answers
6k views
Mechanical disc brakes lacking stopping power
I bought a carbon road bike about 4-5 months ago with Tektro Spyre dual pivot mechanical disc brakes. Love the bike except for the brakes :(
Brakes are not too bad on the flat but when going ...
2
votes
2answers
564 views
Are my cable disc brakes knackered?
Well, I bought a bike called "Iron Horse" and the bike has front and rear mechanical disc brakes. The brakes, upon inspection, have no writing at all (The manufacturer was too scared to put their ...
1
vote
1answer
125 views
What's the name of the tool to bevel bar ends?
I noticed the mechanic at my LBS used a tool to smooth out and bevel the end of the steering tube after cutting it. It looks like a useful tool to smooth out the edge of bar ends as well. It's round ...
0
votes
1answer
186 views
How to fully maintain a bicycle myself? [closed]
I'm into bikes for a long time, but I still haven't got how to do maintenance of the bicycle myself so I only know how to change a tire and put some grease on the chain. I'd like to know the list of ...
1
vote
2answers
279 views
Replacing Mechanical Disk Brake cables
I am having problems with replacing brake cables on rear wheel. The bicycle has mechanical disks. I removed old cable successfully and I've put the new one in. The thing is that I feel like it's not ...
1
vote
2answers
3k views
Is it normal for a bike to skid even after both brakes are applied?
When I apply both brakes going at moderate speed, it takes a few feet before the bike stops and I can hear the rear tire skidding.
The brake pad seems to be working fine since the wheels themselves ...
8
votes
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 ...
4
votes
2answers
3k views
Bike brake cables popping out of brake handles
A couple days ago I got in a small bike crash and since then both my front and back brakes have this issue. As shown in the picture, the metal ends of the cables come out of the handles when I squeeze ...
0
votes
1answer
136 views
Is the ticking of a free spinning wheel related to its quality? [duplicate]
I have often noticed that, whenever a race bike is running with free wheel (so no active pedals movements), I can hear a distinct "tick tick tick tick" coming from the rear wheel, sounding more or ...
8
votes
2answers
2k views
Stuck gear hub on the way into a gear on an internal geared hub
My bike recently got stolen :( therefore I have borrowed a bike with an internal gear hub from my stepdad, which was working fine until recently when the pedals just wouldn't turn whenever I switched ...
4
votes
1answer
134 views
Inconsistent headset tightness and squeaking
I own a Trek 1.5 road bike, purchased new around June 2012. The headset (original, never replaced) has recently been experiencing some interesting issues:
About 4 weeks ago, the headset began ...
3
votes
1answer
73 views
What is this ring on these bottom brackets?
Ordered a few bottom brackets; I've never seen this ring before. I can imagine its purpose, but that imagining takes me to consider that this could be problematic (bottom out before bolt is tight). So ...
2
votes
1answer
285 views
Mechanical cable-actuated disc brakes started working really badly
Currently I have a cyclocross bike with Tektro Lyra mechanical cable actuated disc brakes with 160mm wave rotors.
I have had issues with the brakes for some time now, mainly my fault, I accidently ...
1
vote
1answer
723 views
Unable To Adjust Mechanical Disc Brakes Properly
I have a very puzzling problem with the front mechanical disc brakes on a big-box retailer mountain bike. Nothing fancy, and it used to work well for over a year but since I last dismantled it to ...
1
vote
0answers
84 views
Road Bike overhaul [closed]
Can someone recommend a complete step by step book or other media that can help me with this project I am about to take on. Please include the list of tools too.
I have an old Jamis road bike I would ...
1
vote
3answers
5k views
New Bike + Disc Brake Shuddering: Cause and Fix?
I recently bought a new bike (cx steel frame, carbon fork, disc brakes) that I am using as a commuter/all-rounder bike.
My question is similar to questions that have already been asked concerning ...
3
votes
1answer
309 views
Freezing headset cups to ease installation - does this actually work?
Sometimes it can be a tight fit installing a headset cup / race. Bike forums are full of people saying putting the cup in the freezer helps installation based on their anecdotal, uncontrolled ...
1
vote
1answer
442 views
Loose brake cable hook bushing inside the brake/shifter hood
I noticed a slight clicking noise and a resistance when squeezing the right (from the bicyclist's point of view) brake. Inside the hood, I can see a white rubber thingy (pivot bushing, thanks mikes) ...
0
votes
1answer
104 views
Campagnolo rear mech with Sram groupset
Is it possible to install a Campagnolo Record 11 speed mechanical rear derailleur on a bike that is otherwise equipped with a Sram Force 11 speed groupset?
Has anyone ever used a similar setup and if ...
1
vote
2answers
759 views
Tektro Novela MD-M311 mechanical disc brake replacement [duplicate]
I have bought an electric mountain bike with Tektro Novela MD-M311 mechanical disc brakes and love the bike; however I find the brakes squeal quite badly, and I am looking at replacing the rotors and ...
3
votes
3answers
553 views
My rear wheel isn't properly spinning. How can I tell whats wrong?
I'm just getting back into cycling after a long hiatus. My bike is a little old and worn and its got some issues. The biggest one is the rear wheel.
My rear wheel spins, but it seems to be off center....
7
votes
6answers
4k views
Reverse Gear in Bicycles
For an ordinary bicycle (neither fixed gear nor capable of changing any gears).
Is it possible to modify it to have a reverse gear on it?
(i.e. reverse pedaling causes the bicycle to go backward)
(...
3
votes
1answer
1k views
Disk brake rotor feels loose
Hey guys I've noticed my disk brake being "lose", I'm probably going to consult with LBS anyway but heres how I can describe it:
the [rear] disk it self is not significantly more lose than the front ...
2
votes
2answers
220 views
Dutch Bike Winter Cleaning
I am asking this question as I ride a dutch bike (chain guard, mud flaps etc) so my chain is not directly impacted by salt on the roads. However, seeing that there is a lot of water splashing with a ...
5
votes
1answer
2k views
Back wheel started moving backwards when pedalling backwards
I have a 10 year old cheap 21 speed mountain bike that I have only ever done basic maintenance on (replacing inner tubes, tyres, brake pads, lubricating chain etc).
I have just noticed that when I ...
5
votes
3answers
8k views
rear shifter lever gets stuck when shifting gears
All the shifting was working smoothly until my bike fell off to the ground (edit1: to my right side hitting the right side of the bike) with me couple days back. Now after about a week when I took my ...
0
votes
3answers
649 views
gears overshifting issue
As I have explained in my previous post here I have changed my rear shifter cable and housing. But I'm still having issues with shifting gears smoothly.
It overshifts at particular gear combinations ...
-1
votes
1answer
473 views
automatic gear shifting (slack chain) when reverse pedalling
I'm quite new to bikes. Thanks to youtube I fixed some of the shifting issues I had in the front derailer and now I can shift to all the gear combinations. But I found a something strange when I'm ...
5
votes
3answers
5k views
Derailleur Pulley Wheel Compatibility
I can't find replacement pulley wheels for my derailer that are explicitly made for it. Should I be safe replacing them with a set with the same number of teeth (i.e., the same diameter) and targeted ...
5
votes
1answer
424 views
How do I get rid of weird rubbing noise on my cx bike?
Recently I got the Giant Revolt 3 and have been riding it for a few days now. I have lately noticed that there is some rubbing noise when I apply the brakes. If you look at this picture (might be a ...
