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Questions tagged [rust]

For questions relating to corrosion/oxidation of steel frames, components, and other ferrous (iron-based) parts.

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Is leaving bicycle outdoors short term okay without signs of decay? [duplicate]

I sometimes leave my bicycle outside and it rains sometimes it is left in the rain for a day or few or ridden in the rain and washed with a hose with soap and water. Is that bad for my bicycle as many ...
Suited's user avatar
  • 187
1 vote
1 answer
77 views

Heavy corrosion of the bottom bracket shell, but rest of the frame is fine

I have a Btwin MyBike cycle, which is now 8 years old. The frame is an steel alloy. I want to replace the bottom bracket, chrank shafts & chain ring. The BB was very difficult to remove, used a ...
Mellow Monk's user avatar
1 vote
2 answers
107 views

Rusty bolts/screws on Shimano Claris brake calipers

I've spent a number of hours 'deep cleaning' my Giant Defy 4 road bike and it looks really good.... with the exception of the rust which is visible on the brake caliber screws/bolts. Are they ...
Anthony's user avatar
  • 11
0 votes
2 answers
213 views

How to minimize rusting of bicycle stored outside?

I moved to an area where the street outside my residence has a 60 mph (100 km/h) speed limit. Not safe to ride even on the gravel emergency lane. I can not bring my bike inside, so it is outside. I ...
fixit7's user avatar
  • 1,232
5 votes
4 answers
2k views

Leaving bike outside in -20 degrees

I live in Montreal and every year I leave for 6 weeks in the winter to get a little break. Is it ok for my bike to be on my balcony (kind of covered) during these 6 weeks where the temperature gets ...
Miz 's user avatar
  • 51
1 vote
2 answers
49 views

Handle bar stem has frozen stripped bolt

I just bought a used cruiser for 20$ The handlebars are WAY TOO LOW for me to ride it. However, I've tried everything and the bolt will not budge. Is like to enjoy my new/used bike. Any ideas how to ...
Season Cox's user avatar
2 votes
2 answers
613 views

Are freewheels compatible if they have the same number of sprockets and teeth?

I'm a novice to the cycling world and am wanting to learn to do my own maintenance, so I'm quite unsure of a few things. More specifically, I have a Dahon Eco C7 foldable bike that I got used and was ...
Iceape's user avatar
  • 123
4 votes
1 answer
132 views

Gun bluing chains

Is it possible to hot blue chains for rust protection? I surmise there would be parts of a bike chain that are made using hardened steel (e.g. rollers and pins). Would this process affect their temper?...
Gregory Leo's user avatar
  • 1,295
5 votes
2 answers
142 views

Small rust holes on bottom side of top tube: is this steel frame salvageable?

I was planning on getting this old steel frame powder coated, but the guy doing the powder coating noticed some small holes in the top tube after he stripped it. Does this indicate the top tube is ...
Gordon's user avatar
  • 51
2 votes
0 answers
102 views

I used acid to clean rust from parts on resto project. Should I worry about hydrogen embrittlement?

I have a 1970s U-folder type bike which was very crusty when I acquired it. I removed the rust by soaking the parts in lemon juice for between 24-72 hours, depending on the part. Something I wasn't ...
Lykoloo's user avatar
  • 21
2 votes
2 answers
627 views

Is there an issue with this seatstay? photo

is this seat stay normal or is there a dent / damage here? Hard to tell it's near the welding but the other side does not have this. From https://imgur.com/a/xUtmeKN
tweedi's user avatar
  • 587
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0 answers
178 views

What kind of wax will prevent a bicycle chain from rusting after the bicycle is left in the rain?

I left my bicycle out in the rain. When I try to pedal the bicycle, the chain locks up. That is to say, the roller chain got rusty after iron (ferrium), water and oxegen mixed together. What kind of ...
Samuel Muldoon's user avatar
0 votes
1 answer
131 views

Help identify this very old bike frame

Few days ago I got as a present one very old bike frame which was almost completely stripped of paint few years ago and slight rust got on it on the surface. Only fork was in it’s original color, it ...
zdravo's user avatar
  • 3
6 votes
3 answers
2k views

Are you supposed to paint the spoke nipples?

I repainted my bike and recently rebuilt the rear wheel. But the front wheel has some ugly rust on the spoke nipples while the rest, protected by the paint, looks fine.
Ethan Miller's user avatar
21 votes
7 answers
5k views

14 "Trashed" bikes acquired for free. Worth repairing and reselling? What do I look for?

Very new to this, bike repair specifically. I tried my best with the tags. I'm mechanically inclined, like to tinker, and have many tools (not bike specific). Learning and time aren't really an issue. ...
PlayfulShad0w's user avatar
2 votes
1 answer
181 views

I have some rust around the freehub axis, should this be treated and how?

After removing the wheel, I found that there is some rust at the place where the quick release axis would normally go through. It is not an old bicycle but heavily used in all weather for commuting. ...
nightrider's user avatar
  • 7,859
9 votes
2 answers
3k views

How can I remove rust from a bicycle?

I came across an abandoned old classic bicycle. I was thinking of restoring it but the biggest obstacle is all the rust! It's super bad. Does anyone have any recommendations on what to do?
Alison's user avatar
  • 1,173
14 votes
4 answers
4k views

What caused all my chain links to become stiff after a month in a tent despite having been cleaned and lubed beforehand?

I've left my winter road bike outside in a bike tent for about a month (winter, UK). I noticed that pretty much all links are stiff and the chain is slightly rusted, making it impossible to use. Some ...
maupertius's user avatar
14 votes
6 answers
2k views

Best drivechain for beach, seaside, coastal, winter, generally salty environment?

I live by the beach. Although I guess this is a similar problem to those who ride on salt-laden winter roads... It does take a while but, as evidenced by the endless bikes abandoned around the ...
John's user avatar
  • 405
3 votes
2 answers
500 views

Old Motobecane pedals without bolt on axle - How to remove?

I took off some old pedals from a motobecane frame. I wanted to change the bearings but figured out there is no bolt. I have looked everywhere but can't find the model and how to remove it. I thought ...
Mint's user avatar
  • 31
1 vote
1 answer
284 views

Rust on bike chain

I am having problems with rusting of my bike chain. After cleaning my chain, I use a Dry Lube PTFE spray. I looked at rust proof chains, but they are very expensive. Is there anything else I can do?
fixit7's user avatar
  • 1,232
1 vote
1 answer
155 views

Electrochemical corrosion - bolts holding axles

I suspect similar questions like this have been asked before, but rules on this stackexchange require that I create a separate thread. So please bear with me. I believe galvanic corrosion happens ...
onix's user avatar
  • 11
5 votes
4 answers
2k views

Is an overhanging roof shelter enough to safely leave bike outside?

So I’ve built a shelter to keep the rain off my bike and intend to keep it outside most of the year. It’s just a sloping corrugated plastic roof to keep the rain off it. Will this be enough do you ...
Rooton's user avatar
  • 51
5 votes
1 answer
321 views

Consultation needed! To repair or throw out?

i found these two bikes by the dumpster- Dahon Boardwalk folding bikes. They are totally rusted by the salty air (it's a humid salty beach climate). The chain is rusted and when I push the pedal, the ...
Moped Mami's user avatar
3 votes
2 answers
699 views

Fork seized to frame: can I just hammer it down now?

I need to service a headset of bike as it was initially not even turning without applying strength. And even then it would make an awful noise. I suspect a lot of rust in there. I have removed the ...
Learning is a mess's user avatar
4 votes
3 answers
2k views

My chainstays have been eaten by rust, can something be done?

I hope you are all safe and sound and your Christmas time is at least decent in these pandemic times. The other day I decided to give a good clean to my steel city bicycle and I removed the stand, ...
EarlGrey's user avatar
  • 3,700
6 votes
4 answers
908 views

Will grooves on seatpost cause rusting inside frame?

My bike has grooves in the seatpost as shown in the picture. The grooves do stop slightly further down the post, but the best saddle height for me is when the grooves partially go down into the seat ...
thosphor's user avatar
  • 510
0 votes
3 answers
199 views

Homemade bicycle remedies [closed]

essential shops are closed, has anyone got any household remedies for any problems with your bike? ie: lubrication, rust removal degreasers well any homemade or household stuff uses for your bike.
Alan Walsh's user avatar
3 votes
2 answers
1k views

Effects of rust on steel frame strength

I have some rust on my front forks. This question tells me how to deal with it, but I'd like to know whether it will be impacting the structural integrity of the forks. I'm planning on going touring (...
thosphor's user avatar
  • 510
2 votes
1 answer
404 views

Aluminium "white rust" on roadbike. How bad is my situation?

After some research I did not find similar photos/examples to mine so decided to ask. Recently I have bought used aluminum road bike. I did check all other parts and they are in good condition, but ...
Vasyl's user avatar
  • 23
0 votes
0 answers
80 views

Fixing up a rusty old Rallye mountain bike

I bought a Rallye mountain bike from Facebook Marketplace last year and did most of the major overhauling then as well. It was covered in mud, gunk, rust, had broken pedals, etc. So I had replaced the ...
acekat93's user avatar
9 votes
1 answer
1k views

Freeing stiff nipples?

I've got a nice used rear wheel that's slightly out of true. Simple fix is true it up. But the nipples are stuck to the spokes and won't turn freely. I managed to get one spoke to do two full twists ...
Criggie's user avatar
  • 125k
1 vote
1 answer
660 views

Method to remove and prevent rust on a Reynolds 531C bike frame?

The frame of the 531C Reynolds tubing is rusting, What is the most appropriate method to remove and prevent the rust? Would it be removing the rust and repainting? If so could you like me to resources ...
JoshPeugiot's user avatar
0 votes
1 answer
70 views

Rusty fasteners

I changed bolts on my Jamis steel framed bike because they were rusty. Within 4 days they rusted again. The derailleur is not rusty. This bike is stored in a dry building along with another bike that ...
Jerr's user avatar
  • 1
5 votes
2 answers
926 views

Fix rust on front wheel

How do I fix and prevent this rust on the front wheel?
GavinR's user avatar
  • 153
3 votes
3 answers
3k views

WD40 for crank arm

There is visible rust where my left crank arm meets the bottom bracket which I believe is the cause of the creaking (only present when pedalling hard on left side). Is it okay to spray WD40 in there ...
Mark McGovern's user avatar
3 votes
2 answers
136 views

Should I rather treats single spots to conserve the original paint or go for a repaint with a restoration project?

I'm working on a '76 Peugeot PL8/E and am debating whether I should leave the paint as is, give all the small spots manual treatment or try to restore by getting it repainted/decaled. There are some ...
Chillja's user avatar
  • 83
1 vote
3 answers
1k views

Is this level of rusting removable by sandblasting?

Is this rusted steel frame still salvageable? The local bicycle shop does sandblasting before they powdercoat a frame. Do you think the sandblasting alone would be enough to remove the rust? I'm ...
brabec's user avatar
  • 230
5 votes
2 answers
3k views

(How) should I wax my cassette along with my chains?

A while back I got myself a 5kg block of paraffin (this being the smallest the candlemaking supplies store had to offer) to wax my chains. Then it hit me that the cassettes I have been using are ...
HAEM's user avatar
  • 1,100
4 votes
2 answers
623 views

How can I update the brake system on this vintage Universal La Riviera ladies bike?

I would be really grateful for any advise on how to go about updating the brake system on this vintage Universal La Riviera ladies bike. The brakes don't work properly so I can't safely ride it. The ...
Del's user avatar
  • 43
3 votes
4 answers
1k views

Bike frame rusting immediately, cheap frame?

I've got this mountain bike, it's probably about 12 years old now, and it was sitting in the shed for years, in dry conditions. I recently decided to strip it down and I was going to respray it as it ...
joe o sullivan's user avatar
1 vote
1 answer
1k views

How to treat rust spots on a steel frame without stripping the paint completely?

I have a 1974 steel French road frame and most of the original paint is still intact. However, there’re quite many 1-2 cm surface rust spots. I also recently had one of the lugs partly re-brazed and ...
Dmitry Semichev's user avatar
2 votes
3 answers
2k views

Got rust on chain and cassette

I have a pretty new bike (5 years) and just recently got all the transmission very rusty (https://i.stack.imgur.com/5LmJm.jpg). Several things happened: · Degreased it thoroughly (probably too much) ...
Everything's user avatar
6 votes
2 answers
2k views

How do I clean the inside of my frame? Is it even necessary?

I'm trying to fix up a bike that has been abandoned outside for a while. When I first turned it upside down, rust brown water started coming out of holes in frame around the rear stays. I've fixed it ...
biketoeverything.com's user avatar
6 votes
4 answers
15k views

Rusty chain and back cassette – Replace or repair?

Reference of the chain: KMC Z51 Reference back freewheel: Shimano TZ21 14-28 Teeth 7 Speed Reference of the bike: BTWIN Rockrider 340 I recently acquired a second-hand bike and decided to repair it: ...
Ced's user avatar
  • 223
1 vote
2 answers
6k views

Rusty brake nuts & cables: Should I change my brakes or not?

I have been using a used bike for a few months now and when I bought it it was in mint conditions. However, the winter has been really harsh were I live and since I drove every day to work with it ...
eslukas's user avatar
  • 119
4 votes
3 answers
3k views

Should I cover my bicycle overnight while bikepacking?

I'm wondering if all the moisture from being out overnight will damage my bicycle. I'm thinking 30+ days of being in use, with maybe a couple of those days being light rain. If the water will damage ...
nda's user avatar
  • 143
3 votes
3 answers
1k views

Rust hole on tube between chain stays

I've inherited a frame my father used to ride and was planning on getting it blasted and coated. Checking it over it all seems to be in fair condition (its decent 531 Reynold tube), some rust, but ...
henry's user avatar
  • 411
3 votes
2 answers
272 views

(Light?) rust removal from chain

Situation: I'm new to the world of trike maintenance. My son and I purchased recumbent trikes at the end of last summer. The weather for the past couple of months has been cold, snowy, cold, and......
Bart Silverstrim's user avatar
9 votes
2 answers
3k views

Protecting bicycle from sea/salty water

I'm using my bike to commute between my work and home (~10km). In the middle of my trip I have to use a ferry and have to put my bike on the deck. Within 2 weeks of the trip I could see my cassette ...
Efe Can's user avatar
  • 177