The big round things your bike rolls on. Rims, spokes, hubs, etc. If it's all about the rubber part, "tire" tag is better.

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1answer
436 views

How to grease a hub?

I have a question about hub, When should I grease my hub ? every 20000 km ? How do I know it needs new grease ? Because I can not see if the grease is dry or not...? Thanks
1
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1answer
157 views

Cassete spacer for CS 7800 and WH 7900

Should I use spacer on CS-7800 who is being installed on WH-7900 ? Or just install the cassete without 0.5mm spacer ? Cheers and thank you..
2
votes
2answers
849 views

Looking for a 29x2.25 tire for my first sprint tri-athlon

I have entered a sprint triathlon on a whim and have a 29er mountain bike. Is there a road suitable tire for a 29x2.25 wheel out there? Looking for something that will give me good roll and as little ...
2
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2answers
10k views

When I pedal the rear wheel is not turning

I have a very old bike. It used to work perfectly, but just recently it happened that when I pedal the rear wheel is not turning. Just for notice I pedal in the correct direction, brakes are not ...
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2answers
302 views

Speed and the sizes of tires/gears

Does the speed of a normal mountain bike vary according to the diameter of the wheels? If it does, will a larger diameter increase the speed or decrease it? Similarly, if the speed varies according ...
9
votes
1answer
703 views

What is the effect of adding weight to a wheel vs adding it to the frame?

There are claims often made that, eg, "An ounce of weight at the rims is like adding 7 ounces of frame weight." This is "common knowledge", but a few of us are skeptical, and our crude attempts at ...
6
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3answers
440 views

Did any manufacturer ever try using more, but lighter spokes to minimize weight?

Wheels generally used to have more spokes. As technology improved and markets changed, manufacturers have taken to making wheels with fewer (and often heavier spokes). I've been told this comes at ...
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6answers
2k views

Do 29 inch wheels make a difference? [duplicate]

Possible Duplicate: 29" wheels - what advantage do they provide over smaller wheels? Do 29 inch wheels make a difference off road? They certainly cost more.
2
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2answers
2k views

Rear wheel not centred, presses against one of the brake pads (Rohloff hub, Magura rim brakes)

Upon replacing my rear brake pads, I noticed that my rear wheel is not properly centered. The consequence is that the wheel is pressed against one of the brake pads, as can be seen in the pictures ...
4
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1answer
135 views

How many speeds will fit on a wheel?

I have a cassette style wheel. How do I measure whether it will take a 7, 8, or 9 speed cassette?
5
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3answers
359 views

Shaky Freewheel

I posted a question some time ago about vibrations in the frame of my road bike (a 1973 Sekine). Recently, I determined that the rear wheel is sliding back and forth across the axle, with about 0.5cm ...
5
votes
2answers
632 views

Where can I find out more about this bike with a spoke-less back wheel?

I saw this really cool, very unusual type of bike which does not use spokes for the back tire. Can you please tell me if you are experienced and interested in such bikes how can I find one of those ...
5
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6answers
4k views

Front wheel “shudder” or “pulse” when braking

When I apply the front brake I can feel a "shudder" or "pulse" through the front wheel, fork and handlebars. It's faster when I'm travelling faster and slower when I'm moving slower. I assume there's ...
7
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4answers
739 views

Wheel rigidity, is it noticeable and should I care about it?

I have a friend who shopped for Aero wheels recently and I heard a lot of talk about how this wheel was more rigid than that wheel and so on. While I understand that a more rigid wheel should have ...
11
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5answers
7k views

What are the risks of untrued wheels?

I understand that wheels should be trued for efficiency. Are there any safety risks (or risk of damaging the bike) in using untrued wheels? Are the risks different between wheels untrued left-right ...
3
votes
3answers
637 views

Mountain bike rear wheel tilts after remounting

Backstory: Total newbie regarding repairing cycles and the proper cycling terminology, so please take that into account. Actual story: I had a fall and the rear wheel started touching the brakes ...
3
votes
4answers
2k views

Terry front wheel (ISO 520 vs 540), big difference?

Preamble I'm building up an old early 80s Terry Precision bicycle. Most of my time has been spent researching and sourcing the front wheel. It's a smaller frame which uses a smaller front wheel for ...
6
votes
3answers
3k views

Two wheel sets, one bike - best approach?

I've got a mountain bike that I occasionally ride on the road, when I do I like to put on slick road tyres but it's a pain changing the tires each time. If I buy a second set of wheels what is the ...
4
votes
3answers
2k views

Is it safe to ride on a cracked rim?

Doing my monthly inspection & clean of my wheels last night and I was shocked to see a crack around one the spokes as they enter rim. It is a rear wheel (Shimano R600 I think). I had obviously ...
6
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4answers
1k views

How long should spokes last?

Trek Fx 7.3, 1 year old, 1900 miles 3 days short of my 1 year bike purchase anniversary I discovered some broken spokes on the rear wheel. The bike shop gave me a new wheel they had in the shop, an ...
4
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4answers
7k views

Are double walled rims worth the money?

I need a whole new front wheel. I have been around some of the bike shops in my city and found that the cheapest whole new wheel (wheel, tire, tube, tape) is about £55. I also asked at the shop I ...
3
votes
3answers
419 views

Rim tape doesn't quite meet, but covers all spoke holes - OK?

The ends of my rim tape are about 1mm apart, but the spoke holes are covered. Is this ok, or should I pull it off and start with a fresh roll? Here's a picture.
16
votes
8answers
8k views

In which orientation should a front wheel be installed?

A front wheel with a quick release mechanism can be installed in two orientations: the lever on the left, or the lever on the right. Does it matter in which orientation it's installed? If so, would ...
2
votes
2answers
2k views

Best value for money on aero wheels

I cycle to work three times a week over a distance of 13 miles in both directions. I do approximately 20mph most of the way there and back and I am looking for ways to speed up the commute. Having ...
4
votes
2answers
4k views

What causes the noise that race wheels make when you are not pedaling?

A friend just got a new tri bike with Zipp wheels and they are loud when she is coasting. What causes that?
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4answers
625 views

Disk brakes severely reduced in power after replacing bearings

so I am creating a few posts about bearings and wheels, (story so far): how to reassemble mountain bike rear wheel hub and bearings mountain bike freewheel hub stopped rotating I have now got the ...
7
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3answers
4k views

What is the widest tyre that you can get away with, on a standard road bike?

In general, what is the widest tyre that you can get away with, on a standard road bike (with dual pivot brakes)? Edit: I have a Campagnolo Eurus wheelset.
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2answers
14k views

how to reassemble mountain bike rear wheel hub and bearings

So I thought I would sort out my wheel bearings (after asking a few questions here first). Did the front without much of a problem, (reused the existing bearings at the moment, had not got round to ...
8
votes
5answers
1k views

Weight of disc brakes

People say (for example here) that disc brakes are relatively heavy, giving this as a reason for not using them. How much heavier than rim brakes are disc brakes? Is the extra heaviness in the ...
14
votes
2answers
7k views

Is it really OK to hang a bicycle by the rear wheel from a hook?

Does it not distort the wheel to have the weight of the bike hanging from just that one spot? Is it OK for any kind of wheel? I have nicer race-type wheels on mine.
2
votes
4answers
294 views

Effects of design on speed?

I'd like to understand more about how the design of a bike affects its speed (assume a normal, two-wheeled bike with gears). Can I assume that weight has little effect, on level ground, except when ...
13
votes
10answers
13k views

Protecting quick-release seats and wheels from theft

I have to say I am not a fan of quick-release, especially for seats. I do not need to raise and lower my seat nearly enough (almost never) to justify the annoyance of having to take my seat with me or ...
1
vote
3answers
1k views

Are there any cyclocross/road bike rims that I could buy that will fit on my Cannondale F600 mountain bike?

I want to be able to ride my mountain bike on roads, but the sound of the mountain tires on the road is annoying. Can I just buy rims that will fit cyclocross or road bike tires? My bike has disk ...
0
votes
2answers
162 views

Is it possible to loosen or crack the tire when I change a broken tube?

If I don't use the proper tools. Last time I used spoons to take out the tire.
6
votes
5answers
10k views

What is the maximum weight that “normal” racing wheels can withstand?

I was recently in a bike-shop where the proprietor told me that the "normal" racing wheels of the more advanced bikes are normally only rated to carry 85kg. For example, he mentioned the Bianchi ...
2
votes
3answers
1k views

How to properly calculate wheel diameter (rim+tire)?

Is it true that 26" rim actual diameter is 25.625"? How does tire size affect wheel diameter? Is there any special formula to calculate wheel diameter?
3
votes
4answers
2k views

Steel vs. Aluminum Wheels

I was at my local bike dump looking for a spare set of wheels for an older bike I have. He said that they have lots of steel wheels but very few aluminum. Whats the deal on this? What are the ...
10
votes
4answers
14k views

Can I just change straightforward wheel axles to QR skewers?

I've just bought a second hand road bike which doesn't have Quick Release Skewers. Can I just buy a set of QR Skewers and fit them? Are they a standard size? Are there any gotchas waiting to bite ...
6
votes
1answer
624 views

Quick release wheels on kids bikes?

Currently trying to find larger bikes for our kids aged 5 & 7. Oldest's next bike is going to be a struggle to fit in the back of the car (for various reasons they cycle to school in the morning ...
1
vote
1answer
201 views

Identify the components of this bike

I'm trying to identify, or find similar, parts on the bike in this video, specifically the front (three spoke) wheel, frame, and handle bars.
4
votes
2answers
487 views

What are wheel tension relief machines called?

At a San Diego bike shop I saw a machine that is purported to take the tension out of a wheel while it's being built so that the tension won't be released when you first start to ride it. ...
8
votes
2answers
4k views

Spokes loose on a new wheel, is this expected or a bad build?

So a couple of months ago, I bought a new front wheel from the local bike shop. It's a 28 spoke wheel, rims are the DT Swiss RR465 and the hub is a 240s. I put 500-600 km on it and noticed a rattle ...
6
votes
1answer
820 views

When to replace wheel bearings

I just ripped apart my mom's mountain bike's rear hub. One of the bearings was incredibly rough, so I replaced it, and the other one was smooth, but didn't turn very easily. Since I didn't have a ...
11
votes
4answers
7k views

29" wheels - what advantage do they provide over smaller wheels?

I was wondering what advantages 29" wheels give. From what I understand they are well suited to mountain biking. Are they any use on road bikes perhaps?
7
votes
1answer
1k views

If the chain/cog no longer drives the wheel, can this be fixed?

Suddenly (without anything sounding like it was broken) the chain no longer turns the back wheel. The cogged part of the wheel is turned by the chain but this doesn't turn the wheel. Is this ...
19
votes
5answers
34k views

How do I separate disc brake pads after accidentally pulling the front brake while the wheel is off?

The title says it all really. I've taken the front wheel off my mountain bike to get it in my car. When I get it out and try and put the front wheel back on the space between the brake pads isn't wide ...
5
votes
3answers
439 views

Damaged rim or just the tube valve?

I had a flat on the way to work today. Not really earth shattering, it was about 5 miles in, only a short walk until the office, where I could fix it in comfort. But walking the bike, I noticed an ...
11
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3answers
673 views

What are the advantages of flat spoked wheels?

Following on from my earlier question about truing them, I was wondering if anybody could point out the advantages (and perhaps disadvantages) of flat spoked wheels?
3
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2answers
544 views

Is there a special technique for truing flat spoked wheels?

I have a set of Shimano R560's that have flat, bladed spokes (16 front & 20 rear, from memory). They are a little worse for wear after a couple of years and at least 10,000 kms. My usual LBS has ...
7
votes
2answers
747 views

Larger wheels - easier to turn?

I've seen it mentioned that larger wheels are easier to turn - is that actually the case? How would that work? The way I see it, larger wheels will have more angular momentum, meaning they'll take ...