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.

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27 views

Resources for bicycle compatibility

I'm looking to build my own bicycle. The main thing I care about is compatibility. I've been researching around and have found various gold nuggets along the way: YouTube - How To Build A Bike From ...
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1answer
193 views

I keep getting flats. 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 ...
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How do I adjust my rear derailleur (Shimano SIS) when it is only slightly out?

It has been a while since I had my bike serviced and the gears are sometimes slightly out of perfect alignment. This results in the occasional mis-shift. I also think the change in seasons have ...
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1answer
56 views

What would cause a pedal to loosen from its spindle while riding?

I recently serviced an old pair of Wellgo platform pedals. They were already old and well-used by the time I got them, and they were slightly too loose, but useable. I rode on them for a few months ...
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2answers
91 views

Which brake pads for these old cantilever brakes?

I need to replace all the brake pads on these old Mafac cantilever brakes on my bike. I have currently a mix of the original style and a modern replacement. I went to a local bike shop and they gave ...
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2answers
49 views

Campagnolo Super Record H Screw

I am having trouble adjusting the shifting on my Campagnolo Super Record rear derailleur. I have set the high and low limit. I think the main problem now is that the jockey wheels are too far away ...
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1answer
47 views

Fulcrum Racing 5 LG freehub replacement - drag

I just replaced a Fulcrum racing 5 LG free hub. Once it was all together, it seems a bit tight. With the bike on the stand, when I spin the pedals, and release, the pedals continue to rotate. So the ...
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0answers
38 views

What and where is the weeping port on Shimano MTB brake levers?

I understand that when you overfill some models of Shimano hydraulic brakes with oil, the excess will flow out of a one-way valve called weeping port, but cannot find any technical documents, pictures ...
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2answers
186 views

Quick link won't 'click'

I'm brand new to bicycle maintenance/repair and just replaced my chain for the first time which I'm very excited about. I do, however, have a problem. I used a quick link to attach the chain and I ...
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1answer
100 views

Removing an internal headset before pulling the fork?

I'm completely taking apart a 2014 Kona UTE (for fun, and to clean it, but nothing wrong with it). I'm not sure how to proceed with the fork. It is now "bare" (no wheel, no cable, no handle, ...
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5answers
7k views

How does a bike 'degrade' whilst unused

What (if anything) will happen to a bike whilst it sits unused, that wouldn't happen to it whilst being used for a work commute over the same period? Suppose I take a 3 month sabbatical and leave my ...
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2answers
44 views

How do I figure out what the model number is of my Shimano rear derailleur?

Here are pictures of my current derailleur I need to replace.
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2answers
1k views

What size is the tiny ball bearing used in SRAM rim-brake caliper quick release detents?

SRAM road rim-brake calipers (mine are specifically Rival from 2011) have a quick release lever to facilitate wheel changes, as many calipers do. The SRAM QR lever has detents which make a little "...
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43 views

Hydraulic disc brake - lever slowly touches bar

I have a magura disc brake. When I pull the lever and keep applying constant pressure to it, it slowly retracts all the way to touch the bar. This process takes about 10 / 15 seconds. I have tried to ...
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5answers
3k views

Old freewheel removal

I have an old rear wheel - I think its from a Raleigh Arena roadbike from the late 70s or early 80s. There are broken spokes that require the sprockets removed to access. I've done this plenty of ...
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2answers
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Movement in head tube/fork?

I have a BH road bike and it has some movement with the tube that connects to the fork. I took it to a bike shop for a tuneup. When I picked it up the guy mentioned the issue. He said he tightened ...
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0answers
45 views

Rear wheel keeps ending up squint, axel on cassette side lateral movement?

I have an old(?) 2010 Carrera Vulcan MTB and the rear derailleur hanger broke a few months ago (my son accidentally bashed it with his bike). Even though the bike is old, it has not really seen much ...
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4answers
2k views

At what point should you stop repairs and get a new bike instead?

My bike has passed its prime, one by one parts start to break, and replacing them keeps eating more and more money. Which made me wondering, is there any rule of thumb of when it is more economical to ...
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1answer
45 views

Reinforced pin replacement with a missing/quick link

Usually, when breaking a bike with Shimano reinforced pin, the general recommendation is that you find the reinforced connecting pin but then move to another pin, a few links aways. It is the "...
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5answers
41k views

Does the chain direction make a difference?

Recently, I helped a friend install a new chain on her road bike, and for the first time read the instructions for installing one. It seems to claim that there's a forward direction, and that it ...
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5answers
358 views

Are there big differences in maintenance/care between different types of clipless pedals?

I was reading this article http://www.bikeradar.com/us/road/gear/article/best-road-bike-pedals-33045/ and it talks about maintenance/care with a couple of the pedal options, even mentioning that "...
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1answer
71 views

Carbon taperd road fork - use crown race or not?

I have a 2016 Trek Emonda ALR 5 with a carbon fork. I am assembling the bike after general maintenance, and have noticed that I am missing (or: think I'm missing = am not sure) a crown race for the ...
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9 views

How to replace lever adjustment knob on guide r brakes

I broke the lever pull adjustment knob on my guide r brakes is there a way to replace this knob? Or any hacks that can be done to put it to maximum reach?
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1answer
71 views

Is my wheel broken?

The other day my inner tube suffered a blow out and I'm wondering if this is the cause One side of the joint in the wheel seems to have come out of alignment and now there is a sharp bit sticking out....
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4answers
15k views

How long do inner tubes last?

I recently started biking again after taking about 2.5 years off. My bike has been sitting in my garage since then. I did a 30 mile ride as my first one back and I didn't replace my tubes beforehand. ...
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6answers
896 views

Yes/no replace chainrings+cassette after chain failure?

I had a pretty bad chain failure a couple of days ago. I bought the bike second hand about a year ago, and in all fairness I had not done much maintenance on it since. I discussed with a friend and ...
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2answers
31k views

What size are the screws used for water bottle mounts etc?

There's one size of bolt that's used all over modern bikes: water bottle mounts and the braze-ons for racks leap to mind. Whenever I need a few, I take one to the hardware store and sift through the ...
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5answers
2k views

The shifter for the front derailleur is “soft” in my vintage bike

So I bought a used vintage bike. I just love the bike and it's awesome. However it came with one problem: gears problems. First of all I have very little experience with bike, especially gears (...
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3answers
151 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 ...
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1answer
6k 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 ...
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1answer
57 views

What is air pressure on Marzocchi forks?

I have changed oil in a set of Marzocchi Drop Off forks with 110mm travel. I can’t find the recommended air pressure on Marzocchi website. There is a spring on one side. I think they are 2004 but not ...
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1answer
46 views

Direction of saddle clamps on seatpost

I have a seatpost from a Canyon Dndurace AL 7.0 from 2016. The seatpost has a saddle clamp consisting of two parts. The lower part has one long end and a shorter one. I can rotate both parts of the ...
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3answers
131 views

Is my bike chain skipping?

I’m new to cycling. I bought Giant Contend AR 1 road. It seemed to be normal the first time I rode it but the second time the chain felt like it was loose. Excuse my ignorance on bike stuff. I really ...
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1answer
46 views

Installing flat pedals (with pins) on a MTB for rainy/wintry conditions?

I have some RaceFace Chester pedals that I want to install on my beater MTB, but I'm not sure if it's a good idea. Basically, I have two bikes and I want to use one for the "bad" weather conditions (...
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6answers
9k views

Riding on a failing bottom bracket - what could possibly go wrong?

My BB is showing the first signs of being on the way out (a click when I drive either foot down hard; if I remove the chain there's a barely perceptible clicky feeling at the same crank position as ...
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4answers
97 views

Where is the valve in my handpump - and what stopped it working?

I have quite an old handpump that fits on my frame. It looks like it's called TOPEAK "miniDUALG - optimised for MTB/ROAD." It has a pressure guage and various bits that screw the handle to the body ...
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8answers
5k views

What can I use for a DIY cable end?

I am in a pinch and need something to crimp onto the end of my brake cable to stop it fraying. There aren't any hardware shop's nearby and its a long way to the nearest bike shop. Any household ...
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2answers
73 views

How to access bearings on this headset?

Since a while my racing bike seems to have delopped a little crackling noise in my headset. I thought servicing the headset bearings might be a logical first step. Unfortunately, when I opend it up I ...
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1answer
103 views

I can't track down the source of chain skip - what might it be?

Last summer it come to light that my bike is suffering extremely bad chain slip, to the extent I feel it is unsafe. From what I can tell, it only happens in the 50t ring, and the 34 may be ok, but it'...
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0answers
87 views

Hole cover under bottom bracket: what is it and how do i screw it back in?

So I got curios what is behind this cover and had a look. Turned the bike upside-down, unscrewed it and took it off. When trying to screw it back in, I realized that there is nowhere for the screw to ...
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2answers
196 views

What can I use to replace a Shimano Deore LX RD-M581?

I've got a trusty Marin East Peak XC from 2008, but the rear derailleur's adjustment screws have all sheared and I need to replace it. The derailleur is a Shimano Deore LX RD-M581, but I can't find ...
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2answers
244 views

Crank removal tool broke. Before I buy another, what did I do wrong?

In my (first) attempt to remove the crank arms from a bike, I broke the crank puller (Super B TB-6485). I applied more force than I was comfortable with, thinking the threads had perhaps rusted over ...
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0answers
26 views

Are Tacx turbo trainer frames the same across models?

All of Tacx' wheel-on turbo trainers look like they have the same frames (looking at current rather than older models). Can anyone tell me whether it's possible to upgrade from say a Flow to a Vortex, ...
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2answers
1k views

Cheap bike tools or can I just use generic hardware store tools instead?

I want to maintain my bike. There a number of tools which are very specific, which also cost a lot of money. I have an old road bike which uses a freewheel. The freewheel remover cost me something ...
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1answer
11k 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 ...
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1answer
75 views

What do I do with this during SR suntour lower leg service?

I'm trying to do a lower leg service on my fork: SR Suntour Epixon 29er https://www.amazon.co.uk/gp/product/B014UQDX9Y/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1 I've removed the rebound ...
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4answers
55k views

How do I know when to replace my bottom bracket?

With out completely removing the cranks and bottom bracket, how can I tell when it's time to replace my bottom bracket? The current symptom is a slightly 'rough' feeling when I pedal. It's not ...
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0answers
70 views

Good Bicycle Degreaser

Today I cleaned my chain with the Park tool CM-52 and it was really effective. However, I ran through half of the park tool bicycle degreaser. I'm thinking of purchasing this degreaser from my local ...
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5answers
2k views

Should I be worried about sand in the chain?

This is about my daughter's (10yo) bike. It's fairly new, maybe about a year old (bought it off a relative who changed her mind). We're no active sporting family, but with this social distancing and ...
8
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3answers
2k views

Gates Carbon Drive vs single-speed chain, long term lifespan and maintenance

I'm looking to get a new bike which will require the smallest amount of maintenance. The bike will have an internally-geared hub and I have the choice of single speed chain or belt drive. I have ...

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