Questions tagged [rims]

The outer edge of a wheel, holding the tire.

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54
votes
11answers
233k views

How to get a very tight tire back on the rim?

I needed to change the tube as a consequence of a flat tire and I am in the situation that it's just impossible to put the tire back on the rim. In almost ten years of experience with road bikes and ...
4
votes
2answers
1k views

Narrow tubeless tire on wide rim

A recent trend toward wider tires (cf Heine, "Performance of Tires") also led to wider rims and a closer match of rim and tire widths. In the past it was considered that tires need to be considerably ...
9
votes
3answers
6k views

Are deep rims more durable for a heavy rider?

Since I weigh quite a lot (~115kg), and ride on bad roads with many holes and cracks, I am looking for rims that would be able to cope with bad conditions without getting out of true or breaking. My ...
10
votes
3answers
2k views

What is this aluminum plate that started rattling inside my Ksyrium rims?

During my last ride I noticed a rattle coming from the rear wheel at slow speeds. I removed the wheel but shaking and rotating it did no good. After some head scratching I thought about inserting ...
5
votes
1answer
12k views

Increasing the size of tyres on a hybrid

We are planning on doing some mountain biking in a few weeks time and we'd like to get some wider tyres for my wife's hybrid. I know there are similar questions and answers out there on this topic, ...
3
votes
2answers
7k views

Rim width / tire section tolerance?

I have a Mavic Open Pro rim in 700 diameter. The manufacturer recommends tire widths between 19 and 28 mm : http://www.mavic.com/en/product/rims/road-triathlon/rims/Open-Pro How strict is this ...
2
votes
1answer
7k views

How do I know what size tyres can I fit on my rims?

I have a hybrid bike with Alex DP17 32h rims (700c). They still have the tyres that came with the bike on them, 40c konda's, but I'd like to replace them with some puncture resistant, narrower tyres ...
20
votes
4answers
56k views

Should inner tube have excess length?

I've recently changed the default 700x35 tires and 35mm Schrader inner tube to 700x25 slicks with 25mm Presta inner tubes. However whilst fitting the new tire and inner tube, I noticed that the inner ...
33
votes
8answers
25k views

Can your rims wear down from too much braking?

I have a question about rims based on information in another question. The person asking states that he doesn't want his rims wearing down. Is this really a problem? Assuming you don't wear the ...
12
votes
4answers
9k views

Enhancing brake force with steel rims in wet conditions?

I currently own an old racing bike, that still has ripped steel rims and a side pull caliper brake. The braking power is acceptable when the street is dry, but as soon as it gets wet (even morning dew)...
2
votes
1answer
1k views

How do I choose a replacement wheel rim?

These are my current rims: Wheeltech TD26 by Alex Rims (can't find much info about these online). I need to replace the rear wheel as it is cracked (cracks on the rims around a few spokes) It's a ...
10
votes
3answers
5k views

Do aluminum rims provide better braking than steel ones when wet?

When I upgraded the brakes on my bicycle recently, the shop asked if I wanted to also switch from my (chromed) steel rims to aluminum rims, saying the aluminum rims would provide better braking power. ...
18
votes
5answers
143k views

Can I put 700c tires on rims made for 27 x 1.25"?

It's getting hard to find any selection for my old Avanti 12 speed. it currently uses 27 x 1.25 inch tires. Can I put 700c tires without needing to buy new rims?
13
votes
8answers
44k views

Schrader tubes in Presta configured Rims?

My 26" mtb rims support presta sized tube stems, however can I drill the diameter of the holes in the rims bigger in order to support Schrader stemmed tubes? what is the proper way to do this, is ...
10
votes
3answers
7k views

Tire slips off the rim when inflated to 8bar

I bought new wheels for my roadbike (shimano wh-rs80 which have c24 alu/carbon rims). I was mounting tires on them yesterday and inflated them to 8 bar (~116 psi). After a few moments (30 seconds or ...
8
votes
4answers
51k views

How do I know if I can replace the 27 inch wheels with 700c wheels on my bike?

I recently purchased an 80's Japanese bike off craigslist called "Jupiter King." It has 27 inch tires but I want to switch to 700c for greater wheel/tire selection. I specifically want some nice ...
9
votes
7answers
1k views

How to build a wheel

I'm in the planning stage of building a new bike. This will be a light road bike for city runs and transport. For racing I have other bikes. I'd like to build the bike from ground up by assembling ...
11
votes
5answers
13k views

Replace rim because of 4 broken spokes?

When replacing the rear brake pads I noticed that 4 spokes were broken and the wheel wobbles. I phoned a local bike shop and was told that they recommend replacing the wheel if more than 3 spokes are ...
8
votes
5answers
3k views

Is My Rim Cracked?

Is my rim cracked? Do I need to replace my rim? Do I need to replace my wheel? (See left/first picture). If either 2 or 3 is Yes, what's the most frugal way to go about it? Notes This is the rear rim....
7
votes
2answers
4k views

Re-painting Rims

Over time, the paint on the rims of a wheel has slowly been eaten by a set of brake pads. How do I strip left over paint? What type of paint should be used? How can I ensure the new paintjob will ...
7
votes
1answer
11k views

Fixing damage to brake rim surface

somehow the alloy braking surface of my rear wheel's rim has got a series of quite shallow lacerations, less than a mil' deep bunched quite closely together (the effected area is no more than 1/8 of ...
3
votes
2answers
4k views

Any wheel on any fork / frame?

I have been braking for a bit too long with worn off brake pads on not so new rims so I basically killed them. I currently have the stock wheels of an FX Trek 7.2 bike. I will most probably change ...
2
votes
2answers
9k views

Compatible tyre widths for 622 × 17 rims?

I have 622 × 17 rims on my hybrid and currently have 700×40c tyres on (came with the bike). I need a new rear tyre but I am not sure what I can get. From what I can find I should be fitting fairly ...
1
vote
2answers
1k views

Rim seems to be shedding metal chunks

I have rim brakes on my mountain bike that's outfitted for urban duty. Two weeks ago, I noticed that my rear brakes were weaker and louder than normal. I found that, although my pads still indicated ...
12
votes
8answers
46k views

What are the consequences of riding a bicycle tire backwards?

When putting a new tire on a bicycle, there is usually a note somewhere on the sidewall showing the direction the tire is supposed to rotate when you are on the bicycle. However, the last time I ...
13
votes
6answers
9k views

How seriously should I take the maximum pressure rating of my cyclocross rims?

I own a very nice cyclocross bike that I use for daily commuting. It is currently fitted with relatively wide cyclocross tires (Continental Cyclocross Race 35-622) that I inflate to 4 bar (58 psi). ...
6
votes
2answers
8k views

Hookless rim benefits

I'm in a market for new 700c road wheels and noticed that, in addition to usual clincher and tubular, some companies sell rims in hookless variant. They don't seem to be significantly lighter compared ...
6
votes
5answers
2k views

Do we really need another bike size?

OK, this is a rhetorical question that deserves to be closed as "opinion based", but gotta ask. Why do we need to have "27.5 inch" bikes? If you dig through the specs (they don't come right out and ...
4
votes
5answers
3k views

My rim exploded inflating on an automatic pump of a gas station. Should I reuse wheel's spokes/hub or buy everything new?

Today I went through this situation. Rims are Vzan Action with Formula Hub 36 holes. My rear tire was leaking. A guy patched up the tube and the problem persisted. I went to the bike shop and asked ...
4
votes
1answer
6k views

Why does a decimal sized 26" tire fit my rims but a fractional sized 26" tire doesn't?

I'm replacing some 26 x 2.10" mountain bike tires that I have on my bike with some thinner 26 x 1 3/8" road bike tires for commuting, however somehow even though they both say that they are 26" the ...
20
votes
2answers
3k views

Is this rim still safe to use?

I bought it this way without the seller noting the issue, so experience from riding with these is zero. Rims are Ritchey Girder OCRs. The crack is pretty small, but noticeable, and I will be running ...
13
votes
2answers
22k views

Why should I choose 36 or 32 spokes (or another number)?

I have to change the rims of my bike and I have to choose between 32 or 36 (or 48 or any other variation). I never thought about this until now and I feel it's kind of a dumb question, but I don't ...
10
votes
4answers
1k views

Questions about cracks in my rim

I see lots of previous questions about cracks in rims, but most of them (1, 2, 3, 4) turned out to be the rim seam. I don't really see the following type of damage discussed in detail with pictures. I ...
9
votes
2answers
1k views

Crack in aluminium rim?

I recently discovered this horizontal line on my double walled aluminium rim (Triban road bike), pics attached, and was wondering if this was a crack or just a manufacturing artifact. Could anyone ...
9
votes
1answer
269 views

Is this aluminium rim saveable?

I have an 8 inch rear wheel off an adult scooter. It appears to have suffered crush damage - at a guess someone's driven a car over the wheel while on its side. The bend is smooth and covers perhaps ...
8
votes
3answers
81k views

Are 700 x 28 , 700 x 32 and 700 x 35 tires interchangeable?

I have a cyclocross bike with Alex ATD 470 Disc rim with TCS (Tubeless Compatible System) currently mounted with Vittoria, Cross XN, 700 x 32c tires. However tires are a bit worn out and I want to be ...
7
votes
5answers
2k views

Cracked rim around the spoke

I purchased a pair of Carrera Vendetta wheels, 27.5" with 2.8" tyres. I found a couple cracks where the spoke sits around the back rim. Is it okay to ride or is it okay to weld them?
5
votes
1answer
10k views

How to choose rim strip width?

After referencing How do I know which size and type of rim strip to buy? I still couldn't use any of the answers to identify the correct width of rim tape to choose. Velox tape comes in narrow (...
4
votes
3answers
7k views

Why does my back wheel keep becoming untrue?

So I broke a spoke a week ago, and when I put a new spoke in you know I trued it. Now, a week later, the bike feels like a kayak, because the back wheel is not very straight. Any idea why this would ...
4
votes
4answers
752 views

Is it more difficult to mount non-tubeless tires on tubeless-ready rims than non-tubeless-ready rims?

In the summer I bought an e-road-bike that has tubeless-ready rims. I wanted to change the tires to better ones, so I bought a pair of Continental GP 5000 (non-tubeless) 28mm tires, and installed them ...
4
votes
3answers
345 views

Cracked rim - adequate for trainer use?

I'd just bought a used wheel, but didn't actually notice its quite serious crack on the sidewall of the rim (silly me, quite foolish to not inspect it). In this case, what are the odds of it failing, ...
4
votes
4answers
5k views

Could I use a front rim to build a rear wheel?

Could I build a rear wheel using a front rim? Edit: Follow-on question Spokes stick out of nipples when rebuilding wheel reusing spokes.
4
votes
4answers
11k views

Sealant in inner tubes: what's the difference?

I was thinking of converting my wheels to tubeless but my rims and tyres are not tubeless ready. I just recently learned that I can add tyre sealants into inner tubes. Can it prevent pinch flats like ...
3
votes
3answers
1k views

Crack on bike wheel rim

I hit the edge of a cone yesterday when biking and had a pretty hard fall. Was looking at my bike to see what damage it took. Saw this crack on the rim, is this something really serious that I should ...
3
votes
2answers
166 views

Do disc brake rims ever need to be replaced?

Obviously the brakes do not place any wear on the rims. But are there other factors that could lead to the rims needing to be replaced? I'm excluding damage from accidents.
3
votes
2answers
1k views

Smaller front rim on mountain bike

I have a Repco Warrior 29, I recently twisted the front rim doing some stuff I probably shouldn't have been doing at my advanced age. There are no 29 rims available here, but there are 26's. Has ...
3
votes
2answers
3k views

Rear Tire 'Wobble' After Tire Change

I have an old huffy 26 inch mountain bike. I changed the tire a couple days ago and now it has a pronounced wobble (side to side movement, not at the axle). Its like its misaligned somewhere but ...
3
votes
1answer
658 views

Trailer Lighting Using a Dynamo Hub [closed]

I have a B.o.B. Yak trailer which uses a ISO 305 mm BSD rim. I'd like to build up a wheel for the trailer using a dynamo hub (perhaps a Sanyo H27) so that I could have lights on the trailer. I know I ...
2
votes
2answers
1k views

Replace 27.5 x 3" MTB tires with 27.5 x 2.1"

Recently I bought a new MTB, a Frog Xtream Vantage. After two days of riding I realized a 3" tire size is too heavy and slow to ride. So I thought to replace the 3" tires with 2.1" regular MTB tires....
1
vote
2answers
8k views

Will 26 x 2.0 tire fit on bicycle with 26 x 2.125 size tire

I am planning to purchase Maxxis Larsen TT 26 x 2.0 tire for my Firefox Cyclone D 26 bicycle. My bicycle currently has 26 x 2.125 tire. Just wanted to know if the above Maxxis tire will fit or not.