Questions tagged [wear]

A decline with use over time. (not clothes)

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BB386 bottom bracket - Is this kind of bearing wear normal?

I had my carbon road bike at service and the BB bearings (again) needed replacing, according to the mechanic, the drive-side one was hardly spinning and the other one also pretty much done with. Can't ...
DoNuT's user avatar
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2 votes
2 answers
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Are all 8-speed Shimano cassettes made from the same quality of steel? Hg200-8 vs Hg31, Hg41 and Hg51 durability

I want to know if anyone knows if the steel used in the Hg200-8 and Hg31/41/51 cassettes is the same. I know the finish is different, but I don't care about the looks. I only care about durability in ...
WornChain's user avatar
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6 votes
3 answers
172 views

What are the failure modes of the brake rotor worn beyond limit

Background I have been maintaining two bikes for a few years. Both have disk brakes. One has around 10 000 km on it another one is well over 35 000 km. The disks on the bike with 35k+ are now reaching ...
Art Gertner's user avatar
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8 votes
2 answers
551 views

Which factors contribute to (rear) tyre wear?

I'm well aware that in most riding scenarios, there is more weight on the rear tyre of a bicycle and power transfer as well as the typical "swaying" from side to side (causing additional ...
DoNuT's user avatar
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7 votes
1 answer
706 views

Should the chain diverge that much?

I bought a new bike that has: 11-speed SRAM NX cassette. Single chainwheel: 36 SRAM NX teeth 11 / 42 cog. KMC X11 chain with quick-release. Rear derailleur: SRAM NX 11-speed. Anti-derailment ring. ...
WoJ's user avatar
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5 votes
3 answers
551 views

How long should an aluminium frame last?

This question has been asked before, and there have been several answers to it - including links to interesting articles and scientific analyses. The general consensus appears to be 5-10 years, ...
Kevin Marman's user avatar
1 vote
2 answers
86 views

Difficulties assessing whether drivetrain is worn

I've been a hobby mountain biker for a couple of years now. My bike is getting older and older (10+ years, still 26 inches) and I would like to do more maintenance jobs myself since it is not worth ...
Bike-Hummel's user avatar
0 votes
1 answer
103 views

MTB chain always jump after putting a new chain. It only skips on 4th and 5th gear cogs only

I replaced my old chain with a new one. After changing the chain I notice that standing pedaling uphill and flat surface in 4th or 5th gear the cogs will engage/disengage. But when I put the old chain ...
larp's user avatar
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3 votes
4 answers
289 views

Is my bike repair man bulls***ing me about my tires just to get me to buy new ones?

I am still learning, so for some things I still go to the bike repair shop. I was heading there and my tire deflated, so I was like "Ok, I am nearly there, so I'll have him patch that and save me ...
Charly Leyewho's user avatar
10 votes
4 answers
2k views

How fast do carbon and aluminium rim brake tracks wear?

Rim brakes wear the wheels' brake tracks. How long do wheels usually live until they're worn (In terms of distance, not time)? Of course I realise this depends on how much I brake, not how much I ride....
chichak's user avatar
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2 answers
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What Causes Tubeless Road Tires to Blister?

Road tubeless setup, and have been happy with it for several years. In the past year I have had a couple of my tires blister either on the centerline of the tread or just slightly off it. In one case ...
Ted Hohl's user avatar
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10 votes
2 answers
722 views

What mechanical effect causes the requirement to replace 11 speed chains at 0.5% wear rather than 0.75%?

As far as I understand, the difference between 10 and 11 speed chains is in the thickness of the plates. The length and the inner width of each link remain the same. This in turn means the size/...
Andy P's user avatar
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2 votes
0 answers
85 views

Uneven wear on tire rim (V-brake set up)

I've noticed that the wear on my tire rim is uneven. The black indicator groove is still visible in some places, but worn down in other places. Both the left and right side braking surfaces have this ...
Christopher's user avatar
4 votes
3 answers
612 views

Is buying a used bike bad if you are not expert?

Is it a bad idea to buy a used bike that is somewhat expensive ($1000 range) if you don't know much about bike mechanics? Of course you can find a checklist online of what wear/damage to look for, ...
Lightsout's user avatar
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3 answers
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Are LOOK-style cleats briefly usable after a corner collapse?

It's now a little over a year since my first set of cleats. The cleats are LOOK-style, but are not LOOK-branded. The shoes are holding up well, but the cleats are falling apart. They are in any case ...
Sam7919's user avatar
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3 votes
2 answers
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Crankset for 2006 Raleigh MTB

I have a Raleigh MTB "Sports" with 6061 aluminum frame that was bought new in 2006 or 2007. It's undergone various repairs over the years and I'm still decently happy with it. However, ...
Luke Sawczak's user avatar
6 votes
5 answers
2k views

Do you automatically have to replace your chainrings once your chain reaches 1 % chain wear?

My chain was badly worn. 1.0+ % wear. There is no visible shark toothing or extreme spacing on chainrings. Is there a chance I can get away with not replacing the chainrings, or does the amount of ...
high-gear's user avatar
28 votes
8 answers
12k views

How bad is switching derailleur gears under load?

I have heard several times the wisdom that you should not switch derailleur gears while pedalling hard ("under load"). The "right way", according to those people, is to pick up ...
Vilx-'s user avatar
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5 votes
1 answer
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Does bicycle rim wear affect wheel truing?

I read bicycle rims wear out with braking. As the wear to the different areas of the rim is likely not equal as they are subject to varying brake force and duration, how would this affect wheel truing?...
evo412's user avatar
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5 votes
1 answer
302 views

Color fading/wear cycling pants at seat bones/saddle contact points

I invested in some proper cycling pants this year, Castelli Aero 4.0 bibshorts and Castelli Meno wind bibtights. This is only some months ago, but already the pants show signs of wear right under my ...
Laura's user avatar
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9 votes
5 answers
2k views

I failed to replace my chain at the proper interval. Will I have to replace my whole drivetrain?

My bicycle is a 2012 Specialized Secteur. It has 6000 miles (10000 km), and I have never replaced the chain. I recently began noticing that the chain always seems out of alignment with the rear ...
Carlo David's user avatar
3 votes
4 answers
853 views

Premature chain wear GX Eagle

After 300 km GX Eagle chain is at 0.5% wear which indicates to me I have to buy a new chain? Is this normal? How to prevent it or advice for better chains? I mostly drive MTB in the woods in Belgium ...
Christoph's user avatar
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3 votes
2 answers
1k views

What causes this tire “hair” wear

There are spots on my rear tire that have developed rubber hairs, almost like the edge of the tire is shredding and the structural integrity is starting to go. You can also notice in the pic a ...
mlhDev's user avatar
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4 votes
1 answer
304 views

Tread wear on kids bike

My girls have the exact same Nishiki mountain bikes. The purple one is actually a year newer but has significantly worse tread wear. Any idea why?
Kenna94's user avatar
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1 vote
1 answer
174 views

How do I adjust V-brakes as the pads wear?

I have V-brakes and when the pads wear down, the brake needs adjustment. Adjusting by undoing and tightening the cable is difficult, is there an easier way to adjust V-brakes to compensate for pad ...
fixit7's user avatar
  • 1,234
4 votes
2 answers
690 views

Uneven wear on brake pad

This is one of my rear v-brake pads. The wear is rather uneven. Is the wear normal?
fixit7's user avatar
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3 votes
2 answers
738 views

Do I need to replace my chain ring and cassette? Images attached

I know I should replace them if they "look like shark teeth", but I don't know what exactly what shark teeth look like. I know they don't exactly look new, but do they need to be replaced ...
Matt H's user avatar
  • 31
6 votes
1 answer
409 views

Are these tires worn out or was it rather a manufacturing defect?

On both of my tires (conti 0101442 or 0100175, can't remember), I got a fissure running almost uninterrupted all the circumference. It's not in the middle, but rather shifted to the left, on both of ...
Xpector's user avatar
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5 votes
1 answer
100 views

Wear marks on chains

I am generally using SRAM chains with a powerlink. For a new chain there is no indication of a preferred pulling direction or inside/outside. If we demount a used chain that has never been taken off ...
mathieu van rijswick's user avatar
1 vote
1 answer
148 views

My tyre has hollow knobs, is it normal/desirable/essential for maker to disclose?

I noticed my back tyre has hollow knobs and I can't remember ever seeing this before. Some of the knobs have turned out to be hollow inside. I know YGWYPF, my questions are: Is it normal? I got no ...
pateksan's user avatar
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2 votes
1 answer
310 views

Front chain ring wear

Photo attached. Does the front chainring should be changed? [UPDATED PHOTOS] In case if yes. Almost all that exists for affordable prices is made from aluminum. Is it significantly weaker than from ...
Michael D's user avatar
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2 votes
1 answer
866 views

Exchange front wheel with rear wheel (Matrix 750) on Trek 4500 mountain bike?

My rear wheel has been showing around the rim some wear on one side. Perhaps something to do with my braking. I was wondering if I can exchange the front wheel with the rear one (in other words, can ...
user3236841's user avatar
1 vote
4 answers
897 views

Average lifetime for 26inch spokes

I've been riding my bike for about a year and a half now and the back spokes are starting to snap, 2 now. I want to know when was this bike bought from the original owner since the spokes are stock ...
Lam Munn Jun's user avatar
3 votes
2 answers
329 views

Chainring just don't know when to let go

My chain needed to be replaced for half a year ago and I've finally replaced it. But after replacing it, I've notice a lot of clicking noise from the chainring area. and when I go check it, I saw the ...
Lam Munn Jun's user avatar
3 votes
1 answer
243 views

Are carbon fiber rims susceptible to fatigue?

While reading this question's take on the wearing out of aluminum rims used on bikes with disc brake systems, the inquiry was projected further to include carbon fiber, disc brake rims. Do carbon ...
Jeff's user avatar
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3 votes
1 answer
640 views

How many chains before the cassette is replaced?

If you change your chain at recommended interval (using wear indicator), how many chains should you get through before the cassette is replaced?
JeffV's user avatar
  • 347
3 votes
5 answers
868 views

How to recognize a bad tire?

The most expensive "consumable" while operating a bicycle would probably be tires. Enthusiasts endlessly debate the relative merits of different sizes, profiles, tread patterns,inflation pressures ...
JoeKahno's user avatar
5 votes
1 answer
146 views

Wear on an IGH by pre-selecting gear under power

I have a bike with an 11 speed alfine IGH in the rear wheel. It works fine, and I am comfortable riding it. When accelerating hard or sprinting for some reason, I've noticed its possible to change ...
Criggie's user avatar
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5 votes
1 answer
731 views

What are some notable visual observations one can make of a cassette that indicate wear? And to what degree that wear has progressed?

Last summer I bought a '02 or '03 Specialized Stumpjumper. 3x9 speed. I replaced the crankset this summer with a Shimano FC-622 triple. Yes its 10 speed but I've experienced no problems and felf ...
Jeff's user avatar
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15 votes
5 answers
3k views

What are the disadvantages of having an old, worn cogset?

I'm always a little wary of people telling me I should replace things on my bicycle that aren't broken. Because of this, I'd like to know details and symptoms about what happens if I ride my bike with ...
biketoeverything.com's user avatar
32 votes
7 answers
11k views

What is best for your brakes when stopping at the bottom of the hill?

You are at the top of a hill and want to stop at the bottom. What is best for your brakes so you don't wear them down: brake continuously; or brake when you reach the bottom?
Claudiu Creanga's user avatar
1 vote
1 answer
265 views

Cross-chaining on a 3x6 system -- how bad for wear?

I keep an old 3x6-geared MTBSO near work, and the front shifter is currently broken (smashed plastic gripshift). It will be a few weeks before I can get it home to replace it with a spare, so I've ...
Chris H's user avatar
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3 votes
3 answers
272 views

How long can I safely use a chain for?

My chain is well over the 0.75% extension at which I would normally replace it. However, the cassette and chainrings are also old enough that a new chain would slip on them, so they would also need ...
Will Vousden's user avatar
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3 votes
2 answers
697 views

Lost teeth on second ring?

I'm thinking of buying a second hand Shimano FC-TY30. However, looking at the photo there seems to be either worn or chipped teeth on the second ring1. Are they actually broken/chipped, or is that ...
Greenonline's user avatar
11 votes
1 answer
246 views

Cost of lending out a child's bike?

My son's elementary school teaches kids to ride a bike in gym class. Basically, they adjust the schedule so the 2nd grade kids (7-8 year olds) have extra gym classes during a 1 month period and during ...
StrongBad's user avatar
  • 265
5 votes
4 answers
737 views

I have changed the chain after my gauge showed that it's .75 worn. New chain jumps anyway. Why? How to deal with it?

I am riding MTBs for over 8 years and either the rules and tools to measure the chain wear do not work or I don't understand how to use them.. I have bought Canyon Exceed with 1x11 SRAM drivetrain. I ...
Gidi's user avatar
  • 51
3 votes
1 answer
1k views

Normal wear on five ten freeriders?

So these are my five ten freerider elc shoes and I’ve had them from december last year (2017-present). The pedals on my bike are 2013 dmr v12 and cleaning my shoes recently I saw that a hole is being ...
user37640's user avatar
  • 134
4 votes
3 answers
10k views

Is movement in my bottom bracket an issue which requires attention immediately?

TLDR; my bottom bracket has movement when it shouldn't but no other issues / sounds / clunking. If I'm riding a few miles a day, is this likely to break catastrophically, or will it last another year ...
DavidW's user avatar
  • 43
1 vote
1 answer
223 views

Can standard cartridge wheel bearings "shrink" over time?

My front wheel has started to wobble a bit at the hub and it's most noticeable when braking at the lights, as the front wheel is doing like a "pulsing" sound when braking - like as if the wheel is off ...
Fandango68's user avatar
  • 1,282
3 votes
1 answer
2k views

Hope pro 4 rear hub wear

When I removed the Shimano 5800 cassette from the Hope 4 Pro hub I noticed that there is a significant axial play of the freehub body. Also I am able to slightly twist the driveside spacer from side ...
Yury Rudakou's user avatar