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A decline with use over time. (not clothes)

26
votes
7answers
9k 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?
1
vote
1answer
88 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 ...
2
votes
3answers
164 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 ...
2
votes
2answers
295 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 ...
5
votes
1answer
107 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 ...
1
vote
3answers
180 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 ...
3
votes
1answer
85 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 ...
3
votes
3answers
299 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 ...
0
votes
1answer
85 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 ...
3
votes
1answer
402 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 ...
5
votes
2answers
160 views

Does too high “B-tension” increase wear

This answer suggests that having B-tension adjusted so that the chain sits far from the cogs increases wear. Can anyone cite a source that says that? Experimental evidence would be preferable, but a ...
14
votes
2answers
2k views

ParkTool CC-2 chain checker incorrect readings

My bike is equipped with Shimano Ultegra CN-HG701-11 chain. After only 600 km I measured it with ParkTool CC-2 and it gives 0.75% wear. ParkTool says For 11 and 12-speed chain, replace at or just ...
1
vote
1answer
108 views

Replacement timing: bottom bracket after gear and chain

I am planning to do a massive replacement on my city bike: chain, gears (both front and rear) and also bottom bracket, as I noticed the pedals tend to oscillate to the sides when I load them. While I ...
1
vote
2answers
389 views

Bottle dynamo: the steel wheel quickly wearing down?

4 weeks ago I replaced the bottle dynamo on my bike (see this question). Now, after 4 weeks of commuting for a total of something less than 600 km, the dynamo runner looks like this It won't take ...
5
votes
4answers
305 views

How to minimize wear on brakes?

My daily commute consists of a quite steep last part (around 1 km with average 12% steepness). On my way back home when going downhill, I have to extensively use my brakes to (more or less) keep the ...
4
votes
2answers
189 views

Do hardened chains cause more chainring and cassette wear?

I was reading the Sept 2016 issue of Bicycling where they were reviewing the SRAM NX series. The blurb for the SRAM chain (below) states that "The PC-1110 chain SRAM recommends for NX ... has ...
5
votes
1answer
1k views

Uneven Chain Ring Wear, or Manufactured This Way?

Bike - Trek DS 8.6 (2016) hybrid. Purchased August 2016 Chain set / chain rings - FSA Dynadrive 48/36/26 Shimano Deore front and rear derailleurs Chain - KMC Bike usage - roughly 600 miles since ...
7
votes
1answer
290 views

How exactly does cross-chaining accelerate wear?

I've heard all over that cross-chaining "wears your drivetrain out faster". I must admit I'm not 100% convinced that this is true, because I can't see a scientific basis for it. Could I get an ...
9
votes
2answers
808 views

How thin/worn out can you allow road bike rims to get?

My mechanic measured the rim off my front wheel to be 0.8mm thick and recommended to get a new wheel. How thin can a rim get until it gets very dangerous to keep riding it?
1
vote
1answer
158 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 ...
3
votes
1answer
146 views

If chain/ BB/ casette are dead can chainrings and derailleurs still be OK?

I bought a brand new bike last May (2015 Brodie Elan) and proceeded to put 11,000km on it by November (cross Canada ride plus some commuting). Around the 11,000km mark I brought it back to the shop ...
1
vote
2answers
194 views

Shimano Deore front derailleur occasionally sticking

I have a question about my front derailleur sticking occasionally. I've had this bike for a 1.7 years and have ridden it through 2 winters. It has only been after this last winter that my front ...
1
vote
2answers
159 views

Rear Cassette worn + needs replacing - what other components to replace?

I have picked up a bike (Specialized Allez) recently that has a very worn cassette from not replacing the chain for an extended period of time. Therefore am looking to change it. I was wondering what ...
4
votes
1answer
361 views

When to change road bike

I own this Fuij Roubaix 2008 model road bike, its an aluminium frame with carbon front and rear forks. I already did 25000km on the bike and replaced wheels, chainring, a couple of cassettes, chains ...
9
votes
4answers
1k views

Do aluminium chainrings/cassettes contribute to chain wear?

In trying to achieve a long lasting, low maintenance drivetrain, I've read statements about aluminium oxide being the source of the black colour of chain dirt and also being highly abrasive: ...
3
votes
1answer
434 views

SPD-SL pedals uneven wear

I have been riding my road bike for about 10k km on those pedals (shimano ultegra spd-sl) and it just so happened that the left one is now worn much more than the right one (check out photos). You ...
1
vote
3answers
2k views

What does chain worn indicators 75% mean?

I've bought a chain wear checker made by BBB, but not sure what the percentage of worn is about? It has 2 sides, one of them indicates that the chain is worn 75% and I should replace it in the near ...
2
votes
5answers
1k views

Croozer bike trailer optimalisation for less tire detoriation

We love to travel by bike. Last summer we did a trip of about 650km on mostly asphalted roads (with quite some medium long climbs and descends) with our son in a bike trailer (type Croozer, see ...
2
votes
6answers
2k views

Which usually wears faster - wheel rims or brake blocks?

I was wondering which you'd expect to wear faster: wheel rims or brake blocks. The reason I ask is that my mileage has shot up the last couple of years so I'm seeing a lot of wear on things I never ...
1
vote
2answers
14k views

How long should brake pads last? [duplicate]

My son is new to comuting by bicycle. He brought a brand new bike and after just one week was having problems with the brakes. He only rides approximately 6–8 miles a day. Halfords advised that his ...
1
vote
3answers
634 views

I just replaced my cassette, do I need replace the 2 month old chain?

I replaced both my cassette and chain in July (2.5 months ago). For some reason my chain started skipping when I was in the smallest cog in back. I took it to a shop, they could not find anything ...
3
votes
2answers
293 views

Is wear on this derailleur pic normal?

I have had issues with noisey drivetrain and inconsistent shifting despite indexing adjustment. I have found wear on the top jockey wheel cage, is this normal or should the chain not rub here? Does ...
6
votes
2answers
564 views

Help with cassette, worn or not?

I have done exactly 2879 km on my cassette, and currently I got myself a new chain which is a third for this cassette. With first chain I made 1985km, but I already noticed a significant degradation ...
4
votes
2answers
2k views

Does ProPedal on FOX RP2 rear shock wear out when on during downhill?

Yesterday I forgot to turn off ProPadal before quite nasty downhill ride on my Fox RP2 rear shock (riding Giant Reign 2011) - I can imagine this makes no real harm to the shock but think there can be ...
7
votes
3answers
1k views

Do wider tires wear better?

I'm interested in road bike tires and how width affects how long they last. It seems common-sense that a wider tire would wear better, as there's simply more of it to "spread" the wear, but I'd like ...
5
votes
3answers
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 ...
8
votes
1answer
841 views

Can I flip my worn chain to extend it's life?

Assuming my chain is showing that it's worn and getting close to needing replacement due to chain 'stretch'. I know you can flip single speed chainrings to extend their life when they become worn. Can ...
4
votes
3answers
2k views

(V-)Brake pad lifespan

Just for the record, my rims are brand new (~800 km) and clean. I have a set of KoolStop salmon brake pads (actually 2 sets, .... well, front and rear). I installed them ~600 km ago and I already had ...
5
votes
3answers
1k views

Is it normal to wear out the rear tire with in a few months when using a trainer?

Early this year I attached my bicycle to a trainer, around the December time frame of 2011. The rear tire and inner tuber where shot by March of 2012. Riding about 24 Miles per week. Is this normal ...
4
votes
2answers
7k views

What are common causes of premature chainring wear?

My bike mechanic told me today that my front chainrings are starting to wear out and I should consider replacing it soon (with my next chain replacement). The cassette is still in good condition and ...
21
votes
5answers
47k views

How to tell when to replace cassette?

How do you tell when it's time to replace a cassette? Are there any specific wear patterns on the teeth to watch for or symptoms specific to a worn-out cassette?
2
votes
1answer
2k views

Switch front and rear tire for distributing wear [duplicate]

Possible Duplicate: Should I change both tires when I need to change one? On my road bike, my rear tire has much more wear as my front tire (reported by others on this site as well). Should I ...
11
votes
3answers
3k views

How to avoid wearing out gears?

I have a Specialized Tricross which I bought new last year. In that time (approximately 1K miles), I wore out my chain and gears. At least two of my gears are still slipping, even with a new chain. ...
13
votes
1answer
1k views

Do I need to change my cassette if I can't see any wear?

I bought a new road bike with Campag Athena 11 speed in March last year. To the end of Jan it had covered 9000km. In all that time I hadn't changed the chain because I don't have the Campag tool, and ...
21
votes
6answers
37k views

Does this chainring need to be replaced?

Here is a closeup of my triple: All three rings are Shimano Ultegra and have never been changed. They probably have at least 12000+ km on them. I've been pretty good about changing the chain ...