Tools, parts, techniques, and procedures to keep your bike in working order. MAINTENANCE is not the same as REPAIR, a separate tag. Maintenance is what one does on a regular basis. Repair is what one does only when something is broken.

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24
votes
2answers
5k views

Why does pedalling backwards not move my bike backwards?

On the BMX bike I have, pedaling backwards moves the chain but doesn't drive the wheels of the bike backwards like you would expect it to. Why is this?
7
votes
8answers
5k views

How long should a well maintained chain last and what can I do to prolong its life?

I commute on a fixie. I'm using KMC Z410 chains. Every evening if it's wet I wipe and re-lube my chain, using ProLink lube. Every weekend I remove the chain, soak it in kero, brush it with a citrus ...
4
votes
4answers
535 views

How do I re-insert a chain pin that has been pushed completely out?

While breaking the chain, I pushed the pin too far and pushed it out completely. Now the chain is too short. How do I re-insert this pin, or should I look for other options.
6
votes
7answers
1k views

What are the absolute essentials a cyclist should own? [on hold]

Context: My bike shop includes free servicing as a standard with a new bike. I don't need such thing and live too far away. In lieu of waiver I can get €100 of stuff from the shop. Best bike problem ...
1
vote
1answer
93 views

Is graphite grease suitable for bicycle bearings?

The Wikipedia article doesn't explicitly list the applications of graphite grease. Would it be suitable for bicycle bearings and threads? Furthermore, I went ahead and purchased a single package (the ...
6
votes
4answers
95 views

Bicycle maintenance notes, technical book: do you have one?

Well, I drive a car and I have a technical book (maintenance) and automatically I want to do the same for my newly bought bicycle. I would love to track repairs, maintenance schedules, changed / added ...
5
votes
2answers
994 views

What to do about a stuck chain link on 10 speed chain

I put a new chain on my bike and after 3 rides or so, I developed a stiff link. I'm not sure what caused the issue, but now it barely bends at the pin at all, unless forced. It causes skipping ...
1
vote
1answer
71 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 ...
0
votes
0answers
36 views

Want to buy a new bike [closed]

I have planned to buy a new bike that has a good milage in city constraints. Budget is 70k. I am thinking ok Bajaj discover 125M. Please help
2
votes
1answer
622 views

ideal dérailleur height for a Deore on non-round/oval Cranksets (e.g. a Biopace)?

Reading on every site about front dérailleur adjustment, the distance from the bottom of the outer dérailleur plate to the bigger crank cog should be "one penny". Mine is around 1cm! it does shift ...
1
vote
1answer
87 views

converting stem shifters to brifters

I'm new. I'm 26, from the UK and until last year I'd never cycled more than 10 miles before. Then in September I cycled 2700 miles from Maine to Florida. It was great. I've just bought a Dawes ...
2
votes
2answers
95 views

For 'classic' cantilever brakes, are cartridge brake shoes better than non-cartridge ones?

What are the advantages of cartridge brake pads compared to non-cartridge ones? Do they offer better braking characteristics? I'm about to replace brake pads on a 1994 MTB which has Shimano STX ...
0
votes
2answers
122 views

back tire keeps going down

I have just bought a new bike and had it about a month now. I don't really know much about bikes but I do know how to repair an inner tube. I have had one puncture and just bought a new inner tube. ...
1
vote
1answer
70 views

How can I tell where the damage is in the hub?

I am pretty new to bicycle maintenance. I've replaced brake cables, and patched tubes, but not much else. This week my plan was to clean up my back hub, because the wheel hadn't been turning as ...
5
votes
1answer
1k views

Are Shimano Hollowtech II bottom bracket spacers unique?

I'm moving my Shimano Hollowtech II XT crankset and bottom bracket over from a bike with 73mm bottom bracket to a 68mm bike. The only problem is that I only have 1 spacer and now I need 3 bottom ...
0
votes
0answers
30 views

What type of grease to use as general purpose bearing lubricant? [duplicate]

Lithium grease, white litium grease, graphite grease, carbon grease, SRAM`s Liquid O-ring. And those are only the types of greases I have heard about. What type of grease would be suitable for ...
1
vote
0answers
23 views

Fork damper circuit reconditioning

I have a rockshox Dart II from 2007. I have recently rebuilt it for the first time in 9 years as it had basically locked up, and not so surprisingly given its neglectful treatment, its still not ...
1
vote
1answer
59 views

Can you trim rim tape once instaled?

I installed my rim tape then noticed was too wide so I trimed it with a razor knife. Would this have caused any damage to the rim bead?
1
vote
1answer
58 views

Chain Replacement

I'm having a hard time finding an appropriate replacement chain for my bike. Its a 21 speed, Wal-mart brand mountain bike. My local bike store has chains that were up to a 10 speed. I know I need a ...
2
votes
1answer
132 views

Brake hard on new cycle

I saw someone after buying a new bicycle (a hybrid), pulled the brake as hard as he could for few seconds and dragged the cycle along while braking like that, 1 brake per centimeter. Why did he do ...
19
votes
8answers
5k views

What should I look for when buying a used bicycle?

I'm moving to a city where I can ride a bicycle to the grocery store, coffee shop etc. I want to purchase a decent used bicycle. I'm leaning towards a bike that's in between a "10-speed" or road-bike ...
2
votes
2answers
59 views

How to re-tension front derailleur cable

Bike is a mid 80s Miyata with early Shimano 105 components. It's a 10 speed, 5 speed cog and 2 chain rings. I recently had my front derailleur set up again by a good mechanic after it stopped ...
11
votes
3answers
2k views

Is it harmful for a hydraulic brakes bike to be put upside down

I heard somewhere that bikes with hydraulic brakes should not be put upside down. If they are, 15 minutes should be allowed, before the bike is used. Is there any truth in this? What process could be ...
5
votes
2answers
3k views

Left pedal coming loose

On my bike, which I just built out of spare parts, the left pedal seems to constantly be coming loose. It seems to come out about 5m every time I ride ~10km. It's an old cotter pin crank, and the ...
1
vote
1answer
44 views

Why is part of this Derailleur loose? (Sun Tour Cyclone II)

As you can see from this picture, part of my Derailleur is loose. Notice how the gear is not in flush with the cylinder. It has a no other parts (that I can find!) than a threaded screw to go in ...
13
votes
5answers
12k views

What makes grease appropriate for bikes?

I'd like to grease my seatpost, and in front of me I've got a tube of "CMD Extreme Pressure Lube #3" that claims to be good for "ball bearings, roller bearings, deep drawing, rivet spinning" and a ...
15
votes
4answers
5k views

I've had a bike in storage for over 10 years. What maintenance does it need?

I've had a bike in indoor storage (my garage) for over 10 years. I'd like to get it back into good condition to use for my commute to/from work each day. What things should I check/replace before I ...
7
votes
5answers
1k 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 ...
9
votes
1answer
210 views

Bike pump: what is this lump?

What is this lump in the picture and how does it work? I have another pump, which physically is the same but minus the bulge. The one in the picture seems to perform better, ie less work to reach ...
23
votes
10answers
4k views

How much does bike price correspond with maintenance needs?

In this question (with this answer) I asked about a commuter bike, which is to be ridden 40 km every weekday, in the city. And apparently for this scenario I can choose either of two possible kinds of ...
0
votes
3answers
165 views

Shifter cable running beneath the bottom bracket without a sheath

I am trying to solve the neverending issue of my derailleur shifting on its own by replacing the shifter's cable and its sheath to see if it not sliding properly could be the cause of the issue. ...
2
votes
1answer
121 views

What is the hydraulic brakes expected life?

I bought a pair of hydraulic brakes (Shimano BL-M395) for my MTB. After 8 months (less than 1,000 kms), both (front/rear brake) started to leak oil thru pistons, rendering pads contaminated and the ...
0
votes
0answers
43 views

Can't find right headset adjustment

After a complete tear down and reassembly I can't seem to find the right tightness adjustment for my threadless fork / headset. If I loosen it to the point that the front fork turns freely, there's ...
0
votes
0answers
58 views

How to prevent spiders from making webs on my bike? [duplicate]

I really hate spiders and I'm afraid of them so this is really a problem for me. I use bike every day to get everywhere - to work, to shop etc. These nasty things can make a web in a matter of a few ...
1
vote
2answers
262 views

Can't shift front gear, despite loosening, tightening, etc. What could be wrong?

Disclaimer: I'm clueless and am piecing together what little information I know from reading this site and from watching YouTube 'intro to repair' videos. I've been gifted a used mountain bike, my ...
17
votes
9answers
31k views

Homemade bicycle degreaser liquids

Does anyone have a recipe for a homemade bicycle degreaser solution? I'd like to make my own degreaser solution instead of buying one. I have read about using lemon juice and various types of alcohols ...
9
votes
3answers
7k views

Fixing noisy V brakes

My V brakes make a lot of noise when I brake!! I am annoyed by such noise not to mention the pedestrians. My Mechanic said that it will not make those noise after using for couple of days, but it is ...
1
vote
2answers
3k views

Dahon handle post hinge loosens too quickly

I noticed that the handle post hinge on my Dahon Speed D7 now requires attention much more often than it used before. Unlike main frame hinge which remains tight for long after adjustment, this one ...
22
votes
4answers
12k views

How do self-adjusting hydraulic disc brakes work?

I have Avid Elixir brakes on my mountain bike. They are the only part of the bike that's a total black box to me. I understand the principle behind disc brakes, and I understand the principle behind ...
14
votes
6answers
10k views

Real measurable benefit to ceramic bearings?

Is there a real difference between riding on ceramic bearings and riding on stainless steel? How would you measure it? Does it require it to be every bearing in the drive train, or will each set of ...
2
votes
1answer
128 views

What's wrong with my tire?

My back tire caught a flat from a pot hole. The next day I take it to a shop and I get an inner tube change. From the shop I ride the bike home, but the tire catches another flat on the way. What do I ...
0
votes
1answer
63 views

Scott S30 road bike 11speed with 10 speed compatibility

I have a Scott S30 bike currently running a shimano 105 2x10 speed 50-34 crankset, shimano 105 10 speed front shifter and 10 speed cassete and chain. I have a new crank that i want to install, the ...
1
vote
2answers
91 views

Corroded brake levers

I think this corrosion comes from sweat. How can this be removed?
7
votes
1answer
16k views

What maintenance does a front suspension fork need?

I've just bought a used bike on eBay, its a 2002 Marin Bobcat Trail. It has 'In-Sync 266' suspension forks. This is my first suspension bike so I need some guidance in the use and maintenance of these ...
1
vote
1answer
85 views

How do I know I should replace the chain? [duplicate]

I have been riding a folding bike in the past. I have never replaced its chain. Recently, I have bought a second handed road bike for $500. I am afraid of the chain breaking suddenly. How do I know ...
1
vote
3answers
1k views

Burping v/s bleeding hydraulic disc brakes: is it safe?

I found a method for burping (get the air out of the circuit) hydraulic disc brakes in YouTube (see here). The method is: 1) Rotate/move the hand lever assembly until the reservoir cap is facing up ...
0
votes
4answers
139 views

Are rusty disc brake pads a worry?

I'm the fool who didn't wash the snow off his bike - it's a rusty mess. I've just taken apart the front disc brake as it was rubbing. I think that was more to do with the disc being bent, but as I ...
7
votes
7answers
6k views

How to prevent my chain from breaking?

After my chain has broken what should I know about buying and maintaining a new chain (apart from lubing it and replacing when it 'stretches')? Do you keep a spare chain, or a spare link? I have a ...
7
votes
3answers
4k views

Buying a used higher quality bike vs a lower quality new bike

I'm in the market for a new or used bike in the $1000 range and am trying to figure out whether it is worth it to buy a nicer bike with better components if they are already used and worn. For ...
6
votes
5answers
2k views

How long should spokes last?

Trek Fx 7.3, 1 year old, 1900 miles 3 days short of my 1 year bike purchase anniversary I discovered some broken spokes on the rear wheel. The bike shop gave me a new wheel they had in the shop, an ...