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Questions tagged [maintenance]

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.

3
votes
1answer
2k views

How to pick a crank puller?

I need to get a crank puller for my square-taper spindle. There are several available on eBay and Amazon. What information do I need -- about the puller, my bottom bracket and my crankset -- to pick ...
2
votes
1answer
315 views

I cannot find a barrel adjuster on my bike

I tried to adjust the cable tension but there it litterally no way to adjust it on the front derailleur on a 22.5" GMC Denali 700cc Men's Bike Generic photo from walmart.com
2
votes
2answers
241 views

How can I bleed my hydraulic disc brakes without buying a kit?

Is it possible to bleed hydraulic disc brakes without buying a kit? If so, how would I go about doing it? I have Shimano BR-M355 brakes, but the question is also applicable to other manufacturers. ...
2
votes
2answers
271 views

Deflated tube: Is it me, or it is the rim tape?

I just had flat tube #4. Enough is enough. Please examine the photo of my rim and the valve stem hole. Is the rim tape too far off of the edge? I had inflated the tire with more air, per the first ...
7
votes
1answer
1k views

Where do springs on skewer go?

Where do the springs on a skewer go in relation to dropouts? And which way do they face? My springs are conical but I can't recall which direction the cone pointed or if they were between hub and ...
3
votes
2answers
869 views

What is the best way to protect frame from dents during crashes?

I have a bike and I crash relatively often. I'm concerned about protecting the frame from damage. I started searching for a way to resolve the problem and I'd like to share options that I've found, ...
2
votes
3answers
412 views

Which parts of a bike have reversed (left-handed) threads?

Which parts of a bike have reversed (left-handed) threads? There's 1) the non-drive-side left pedal-to-crank threading and 2) the drive-side right bottom bracket cup (apparently sometimes called the ...
7
votes
2answers
3k views

How to open the top cover of a Shimano Tourney ST EF 41?

My 3 speed gear shifter is stuck. I want to open the cover so that I can clean the old lubricant and dust and apply new lubrication. There are no screws on the top and I am not able to open it even ...
3
votes
1answer
82 views

Do cartridge BB's have both ends removeable?

Apologies if this is a dumb question!: I am teaching myself some bike maintenance skills and was removing my crank and BB. However, the ParkTools videos I've been following show BOTH ends of the BB ...
0
votes
2answers
490 views

Bike keeps suddenly changes gears w/o me shifting

I've noticed that there are times that my bike suddenly changes gears, without me touching the shifters. It usually happens when I'm on a hard gear and I suddenly power out of a full stop, it pops ...
1
vote
1answer
438 views

Adjusting wobbly handlebars [duplicate]

This is the bicycle that I own: My problem is that the handlebars have become loose right right where that red bolt is located. There is an identical bolt on the other side. I have tried adjusting ...
7
votes
1answer
6k views

How do I know which spokes to get for my wheel?

I have a hybrid bike and under description for Spokes it says "Stainless PG"...but when I look for spokes there are a multitude of sizes, thicknesses, butted, double-butted, etc.! How do I know what ...
2
votes
1answer
176 views

What are the ESSENTIAL tools to do a basic strip and rebuild?

I can't currently afford to pay someone to give my bike a complete strip and rebuild (I need a wheel rebuild, which is essential, so I am paying for that this month!) So, given I have a hybrid, disc ...
1
vote
0answers
174 views

Adaptation of Regular Bike to Disc brakes [duplicate]

I have a DUNLOP SPORT DS 26 Bike. Here is a similar bike: I would like to add hydraulic disc brakes at both front and rear. But the frame or forks do not have anywhere I can mount the Calipers, and ...
1
vote
2answers
5k views

Is it alright to put a 25mm tube in a 23mm tyre?

I've just bought 23mm wide tyres to replace my current 25mm ones. Do I need to buy 23mm tubes too?
0
votes
1answer
482 views

Rear brake doesn't work

When I pull the rear break lever, the cable contracts, but the lever doesn't return to its original position. How can I fix this? If this is not enough information, please let me know. I will post a ...
2
votes
2answers
170 views

Should I remove unused screws from my frame?

Is it a bad practice to remove all the unused screws from my frame (i.e. for the mudguards, front/back racks)? Could rust be an issue? Even if the holes for the screw do not expose the inside of the ...
1
vote
1answer
74 views

Finding Bicycle Parts

How would I find bicycle parts cross-referencing make and model? I own a Dept. Store Schwinn Dual Sport (GTX), and before I begin dismantling the bottom bracket for servicing, (it's been 3 years since ...
1
vote
1answer
384 views

Cannot get chain link out

My chain broke so I decided I'd fix it. Don't have a tool to take apart the chain so I tried hammer and a nail over a wrench to no avail. Messed up the chain pretty bad too. Is there such a chain ...
2
votes
2answers
14k views

Problem with chain skipping when pedaling hard

If I pedal hard, i.e. while standing/taking off/going uphill, the chain skips over the cogs making a load screeching noise and my foot just sinks to the bottom position. I attempted to fix this ...
1
vote
1answer
251 views

SR Suntour CR9 suspension cartridge removal

How does one remove the cartridge of a SR Suntour CR9 cartridge? This video shows how for other types, but the CR9 doesn't have the bottom bolt (you have to go in deep on the left side and unscrew a 5 ...
0
votes
1answer
288 views

Do one-sided clip-in pedals have a bit more friction and inefficiency than alternatives?

Moving from old style pedals years ago, to when I took up cycling again more recently, I noticed a difference when oiling the bike, while doing maintenance. After oiling an old style pedal, I would ...
1
vote
1answer
173 views

When should a disc brake be replaced?

I've had my bicycle for about three and a half years. I use it just about every day, for a total of 30 kilometers of commute a day. The problem is that my disc brakes have started making weird noises ...
1
vote
1answer
362 views

Ants infestation on bicycle

During the recent trip my road bicycle was mounted on the rack on top of the car, and since I didn't wrap it, nor used the cover, flies and other small insects got stuck on the frame and handlebars. ...
5
votes
2answers
866 views

Shifter cable broke down: misuse, lack of maintenance, shifter or regular occurrence?

My rear shifter cable just snapped yesterday. It broke down without any real warnings that I can recall. It neatly broke right at the head, that remained inside the shifter (a Shimano one). If I ...
6
votes
6answers
7k views

Derailleur adjustment: front or rear first?

When adjusting both front and rear derailleurs, which should be done first?
3
votes
2answers
1k views

What tools should I carry around to replace the tube on a bike with bolt-on wheels while on the road?

I'm considering getting a fixed-gear bike for commuting, and I'm unclear on how one can quickly replace a punctured tube on a bike with bolt-on wheels. So far, all the bikes I've had (at least, since ...
3
votes
1answer
993 views

Piston problem, not responsive

I have SRAM Guide R hydraulic brakes. The problem is, the rear brake piston won't come out from the lever body. so I decided to bleed it but it's still less responsive even though I already ...
1
vote
1answer
127 views

Can a tapered BB be installed in either direction?

I have a tapered bottom bracket on my bike, like the one in the pic. On this bike, as I bought it, the fixed cup is on the drive side of the bike, while the adjustable cup is on the non-drive side. In ...
3
votes
1answer
514 views

Can this bike be saved from the rust?

So, I'm buying a bike to use during a summer before I go back home. I found this bike that I'm interested in buying however it's extremely rusty. I'd like opinions on whether this is a DIY clean up, ...
7
votes
4answers
798 views

Rear derailleur lifespans

How should I know when my rear derailleur is getting worn? I can measure/inspect chains, tyres and brakes; gears tend to show problems on a new chain if they're worn. But when changing my chain at ...
4
votes
3answers
234 views

How do I know when it's time to pump up my tires?

I've been cycling for several months now. However, I have had the misfortune of having two bicycles stolen from me, so I've never had a single bicycle for more than a few months. With time passing, I'...
6
votes
1answer
873 views

Is it possible to over-clean a bike chain?

I've seen it suggested that cleaning a chain too often or too thoroughly is bad for it, in that it removes the lubricant from the innermost parts of the chain, where it's most needed and most ...
4
votes
1answer
339 views

How often should I clean my BMX bike?

I recently got my bike and rode it for a good 4 hours yesterday. I'm pretty new to BMX riding, and really want to maintain my bike well. I hear people clean their bike every time they finish, but ...
4
votes
4answers
769 views

Is it OK to leave my bicycle unlubricated for a day after a hose-down?

I just cleaned my bike with low pressure water but I don't have any lubricant. I left it to dry in my basement with the window left open. Is there any chance my bike will malfunction or rust before ...
1
vote
1answer
6k views

Servicing DT Swiss 240 FRONT hub

this is my first post here. How can I service a DT swiss 240 front hub, as in remove the adapter ( end cap ) to get to the insides? Do i need a special tool? Does it even need servicing? There is ...
3
votes
3answers
8k views

Bicycle crank is wobbly

My bicycle's crank is sorta wobbly - it tilts left or right, according to pressure applied to pedals. How do I fix it? What tools do I need? Video showing the wobble.
10
votes
7answers
779 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 ...
4
votes
4answers
563 views

Inner chainring bent on 6 week old MTB

I bought a new Voodoo Bizango 2015 6 weeks ago. When I was out earlier I changed down and the chain somehow got wedged between the 2 front chainrings (It's 2x10) and bent the inner ring. I've read on ...
3
votes
1answer
117 views

Do the cups of headsets with cartridge bearings wear out?

On my bike I have an FSA headset Orbit X-CX which has cartridge bearrings. I re-grease the headset a few times each year and have recently replaced the lower bearing after ca 13,000 miles. The upper ...
2
votes
2answers
218 views

Wobbly wheel/hub even when I tightened the cones

The wheel has a sideways wobble eminating from the hub. I tried adjusting the cones to the point its too tight but the wobble continues. Upon closer inspection there is play in the point where the ...
3
votes
1answer
754 views

Avoiding hydraulic brake system overfill when bleeding with worn pads

I have limited experience with bleeding Avid Elixir 5, Shimano SLX and cheaper Shimano and Tektro brakes. I usually time the bleed just before brake pad replacement, in order to avoid the risk of ...
5
votes
1answer
2k views

When to replace FS bearings?

I know that when a fork stops working plushly, it should be serviced in order to escape permanent damage. When a chain is noisy, it should be oiled, and when it is worn - replaced - again to prevent ...
2
votes
2answers
518 views

spinning handle bar grips - can it be dangerous

I did have spinning handle bar grips on my bike. I have now replaced them with some specialized lock on grips i.e. bolted on. For example if you're cycling on the road, could spinning grips upset ...
1
vote
1answer
4k views

How to pump tire with cap that won't come off [closed]

I have a Schwinn bike from probably mid 2000's. The front tire has a regular valve cap that I can twist off and pump with a floor pump. The back tire has an oval cap that I cannot get off. And it ...
2
votes
1answer
271 views

Can 'Zefal All in 1' really doall of those: cleaning, degreasing and oiling?

Can someone tell me if 'Zefal' All in 1 Spray is good for: degreasing, oiling and cleaning? Link It seems suspicious because it covers 4 very distinct functions in a single spray; eg: Degreasing, ...
1
vote
1answer
94 views

Is component's thread torque a factor in how 'stiff' a bike rides? Would a racer want higher torque?

Is higher pressure into the frame going to reduce vibration and hence improve stiffness?
1
vote
1answer
83 views

Saddle Wash and take care and Maintenance

Can I wash saddle with soapy water? How can I take care of my saddle? My saddle is the GT MTB Saddle, which is made from synthetic materials.
7
votes
2answers
553 views

Why are ball socket allen wrenches

Anecdotally, I see a lot of bike mechanics on the Internet use ball socketed allen wrenches. Is there an objective reason to using them over the 'regular' hex allen wrenches? Are there particular ...
6
votes
1answer
362 views

How to assemble '70s-era center-pull brake

I've (supposedly) got a 1976 Motobecane Le Champion with what appears to be the original center-pull rim brakes, which unforunately are not in one piece and need to be re-assembled: As you can see in ...