All Questions
Tagged with repair maintenance
15
questions
21
votes
9
answers
49k
views
How to remove a crank arm with stripped threads?
A friend called me up yesterday after a mis-adventure during his attempt at a bottom bracket overhaul. He stripped out the threads on the (left) crank arm while using a Park crank puller. In a pinch, ...
user313
11
votes
5
answers
1k
views
What is the necessary equipment on longer bike rides?
Let me provide some context to the question. I mostly cycle alone and cover distances in the range from 45 km to 65 km; depending on the route, these rides last from less than 2 hours to well over 4 ...
- 213
13
votes
6
answers
4k
views
How can I learn to take care of an old (70s era) road bike/get it back to working condition?
I found my mom's old road bike from the 70s tucked away in a corner of our attic. It's not in great condition and is pretty rusty. I don't know a lot about bikes from a mechanical or upkeep point of ...
- 133
9
votes
2
answers
2k
views
What tool should I be using on this bottom bracket?
Belongs to a fairly basic kids bike. Bought second hand and was able to remove it using almost my fingers alone, with a little assistance from a flat head screwdriver.
After replacing the bearings, ...
- 193
7
votes
3
answers
2k
views
What are the most common causes for hysteresis in the rear derailler?
I have often seen derailleurs on cheap MTBs to degrade in performance by showing hysteresis. By that I mean that to switch to a certain cog, one needs to shift one cog further and then immediately one ...
- 13.9k
2
votes
1
answer
18k
views
Twist shifter cannot shift down – what might be the cause?
My son's bike is stuck on 7. When we try to shift down to 1, there are no clicks. It just shoots right back to 7. This is a dial/twist/grip shifter, not a trigger shifter. I do not think it has ...
- 21
23
votes
4
answers
13k
views
Sequence for a complete road bike overhaul
I have a road bike that I plan to completely overhaul soon. Over the years, and with several bikes, I have overhauled most every component, but have never managed to do this for an entire bike, start ...
user313
13
votes
7
answers
1k
views
Minimalist setup for a "travelling bike mechanic"?
I have very little living/working space of my own and so, in order to keep my personal bike in working order, I need to be able to transport "bike mechanic stuff" (e.g. tools, screws, cables, inner ...
- 3,475
11
votes
4
answers
82k
views
When do bearings need to be replaced?
How do I know when bearings need to be replaced?
Should I go by time? Or is there a symptom to guide me?
user313
8
votes
1
answer
1k
views
Dent in bearing cone, try to get a new one, or can I keep riding like this?
So I opened my rearhub, because there was a lot of dirt in there after 4000 kilometers usage and I found that there is a little dent in the bearing cone. When I slide a bearing ball over that "dent" I ...
- 215
5
votes
2
answers
7k
views
Is torque relevant for steel/aluminium? Where do I find torque specs?
When you are not dealing with carbon, is torque relevant?
I've never seen it mentioned on the hundreds of answers here, or the hundreds of how-tos I've read elsewhere.
Should I just tighten ...
- 1,465
4
votes
2
answers
201
views
How do I determine what types of maintainence I need to perform?
I just got a new bike and I want to make sure I’m able to keep it up properly. I am entirely new to this.
Edit: thank you all for your responses, I’ll keep these all in mind and I’m adding them to my ...
1
vote
1
answer
842
views
Rear derailleur breakages [duplicate]
This is hypothetical in the spirit of a recent question about derailleur cables, but I've seen two bikes being pushed with broken rear derailleurs in the last few days.
What are likely causes of ...
- 60.8k
1
vote
3
answers
8k
views
Cycle tyre and tube burst
I pumped my cycle front tyre to 105 psi (700*23c) 5 days back and cycled some 60 km on the same day without any punctures. Afterwards I parked the cycle in my bedroom for the last 5 days (due to ...
- 772
0
votes
1
answer
1k
views
What exactly happened to my rear derailleur?
I had installed my front derailleur and was adjusting the high/low when I noticed my rear derailleur was hitting the spokes of my wheel. Suddenly, I saw a screw pop out and then my derailleur popped ...
- 133