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50
votes
10answers
203k 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 ...
18
votes
4answers
39k 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 ...
16
votes
5answers
115k 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
6answers
6k 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). ...
13
votes
4answers
14k views

700 wheels on bike made for 27" wheels

I just bought an older road bike with 27" wheels. I am curious if I can mount 700 wheels (typical road size) on it. Has anyone ever done this? The main reason I am interested in doing this is so ...
9
votes
3answers
5k 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 ...
9
votes
6answers
26k 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 ...
8
votes
5answers
3k views

Rear Tyre torn at rim - what was the cause?

I had a blowout the other day. On investigation, it was a C-shaped cut in the tube. It patched okay and on reinstalling I found this culprit : The tyre is not new but its not old either - plenty of ...
8
votes
3answers
10k 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.
7
votes
4answers
2k views

Is there a trick to inflating a flat tire with deep section rims?

I have a Schwinn floor air pump and its nozzle is the kind you push down and flip up the lever to connect. With a brand new inner tube installed I could not get it to connect with the valve as I have ...
7
votes
3answers
53k 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 ...
6
votes
3answers
1k views

Is it normal that the tyre fits effortless the rim?

I've been constantly having problems with my wheel going flat. I couldn't find anything on the rim but I changed the rim tape and I bought a new tyre. The old tyre was a bit worn. It was also fitting ...
6
votes
5answers
442 views

Force needed for tire and rim (removing/inserting)

Until now I used 26" rim with Schwalbe Fat Frank and Big Apple (range 2.15"-2.35"). Except for initial prying when removing tire I can perform all operations with my bare hands without a sweat. Today ...
6
votes
2answers
278 views

Is this rim safe?

The rim has a parting at the join: This is a brand new wheel, and I was wondering if this is a safe one. Could it split at the join?
6
votes
1answer
3k views

Buying slicks for a cross bike

The whole rim/tire size thing baffles me. I have a Specialized cross bike that has DT Swiss rims (622x 14). The tires are Tracer Sport (700 x 33). I would like to get a pair of slicks for longer road ...
6
votes
2answers
2k views

Will Slick Tires Work for a Mountain Bike Ridden by a Heavier Rider?

I've owned a Trek 3500 bike (shown below) for 2.5 years now and I like it very much. My bike has the same specs as under the link. It has the XL frame size and 26" wheels with Bontrager AT-550 36-...
5
votes
5answers
1k 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 ...
5
votes
2answers
1k views

Inner tube blows up due to rim holes

I've decided to cycle to work and got myself a new bike. When the bike arrived I inflated the tyres to 80psi (20 below recommended) using a track pump. Instantly the inner tube blew up. I thought the ...
5
votes
2answers
788 views

32-622 tire too small for 622x19 rim?

I recently bought a Mavic A 319 rim with ETRO 622 x 19C and Schwalbe Marathon 28" tire with ETRO 32-622. Based on the tire sizing chart found at Sheldown Brown (https://www.sheldonbrown.com/tire-...
5
votes
2answers
846 views

Can you use non-UST tubeless ready tyres on a UST tubeless rim?

Is it possible to use mountain bike rims which use the original UST (Universal System Tubeless) standard for using tubeless tyres with tyres that are tubeless ready, but do not conform to the said UST ...
5
votes
2answers
223 views

Reinstalling tire after replacing inner tube, how important is it that tire bead is even along rim?

Replacing my inner tube, I've been having some trouble getting the tire back on the rim with the bead completely even throughout. For an example of what I'm talking about, see this segment of a ...
5
votes
1answer
5k 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, ...
5
votes
2answers
21k views

Can I convert hybrid to mountain bike. Tyres and tubes?

I have a mountain bike looking frame with wheels that currently have road tyres. The bike is classified as a hybrid. My tyres state: 28" x 1.6 (42-622) The rim: ETRTO 622 x 18 I am having ...
4
votes
3answers
772 views

Have I damaged my tyres?

I noticed after mounting some new tyres that part of the side wall, just above the bead, seems to have been damaged while I was fitting them (see photos below). These tyres were especially difficult ...
4
votes
6answers
9k views

Correct inflation pressure for old road bike

I have an old Fuji road bike that I got a garage sale a while back. It's probably from the 70s or 80s. This summer, I've been trying to fix it up into good condition for some longer-than-usual rides (...
4
votes
4answers
398 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 ...
4
votes
1answer
4k views

Inflated tire partially slipped off rim, can I fix without deflating?

There is a ~3" portion of my back tire that is no longer within the rim walls on one side. It's an older bike but in fairly good condition. The tires had just been replaced by a professional and I put ...
4
votes
2answers
640 views

Lower tire pressure on wider rims?

For a given tire width, can you safely run a lower pressure on wider rims? Background: My road bike can only fit up to 23 mm tires due to frame clearance, however my rims are a relatively wide 23 mm....
4
votes
2answers
647 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 ...
4
votes
2answers
3k views

Is it 'safe' to use a 700 x 47c tyre on a rim with inner width of 15mm?

Looking to upgrade my tyres on an old roadie mash up to something chunkier so I can handle some off road sections on a ride coming up, currently it has a 27 x 1 1/4 front tyre and a 27 x 1 3/8 rear ...
4
votes
1answer
753 views

Tubeless tire looses air through weld of rim

I have the DT Swiss X1700 Spline 29″ with the Schwalbe RockRazor 2.35" PaceStar on my pre built Bike which are tubeless. After about 100 km the tire now looses air through the weld very fast. I ...
4
votes
1answer
5k 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 ...
4
votes
1answer
508 views

Sidewall repeatedly splitting in same place on rim

Good afternoon, folks. Wondering if anyone has had this or a similar issue: I blew a tire a few weeks back and replaced the tube and tire after thoroughly inspecting the rim for damage. After a few ...
3
votes
5answers
2k 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 ...
3
votes
1answer
829 views

Can I fit a 32-630 tire on a 20-622 rim?

I know that the width difference might present problems later on, but if I understand correctly then it should be possible. The bike isn't meant to be used in high performance circumstances, just the ...
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 ...
3
votes
3answers
1k views

Can a tire that blew off a rim be safely used on another rim, and under what criteria?

I have a set of tires where one of them blew off the rim on my bike after I slightly over-inflated it. I originally asked a question about this here, and there are more details at that link. The ...
3
votes
2answers
752 views

optimal trail/monster-cross tyre width solution for 19mm rims on rigid bike

background I have a rigid 'adventure cross'/gravel road bike (Genesis Croix de Fer) though i run it with velo orange 'crazy bars' which have a bullhorn and a wide swept back position. it has 19mm (...
3
votes
1answer
441 views

Switch to narrower rims on a hybrid?

Following up on my original wheel issues question, I went to see my local cycling store to tell them about my problem. I want to change rims and would like to have them support tires from 23 to 28mm. ...
3
votes
1answer
254 views

Are there standards for tubeless tires/rims?

I still trying to understand tubeless systems (well, i understand the principal, but it's the implementation that I'm still confused) In this video, they show a cross section of a wheel rim and tire. ...
3
votes
2answers
349 views

Definitive reference for tire widths?

Is there a reference/source/method for definitively determining the width of a bicycle tire without actually having it in hand? I ride a 2009 Jamis Aurora which came stock with 32 mm Vittoria ...
3
votes
2answers
607 views

Snow tires for H Plus Son SL42?

I'm riding fixed gear with H Plus Son SL42 rims and Schwalbe Lugano. I'm thinking about changing my tires to be able to ride in snow/wet roads, but in the H Plus Son site I don't see the maximum size ...
3
votes
2answers
11k views

What kind of tires I can use with tubeless rims?

I bought a Trek FX 7.4 last summer, and now, as the conditions are getting more and more slippery, I'm thinking of getting a bit more winter-y tires. The rims are tubeless, but I'm a bit confused of ...
3
votes
1answer
78 views

Widest tyre you can safely fit on 700c wheel (17mm rim width) [duplicate]

I am riding a no-suspension hybrid with rigid reinforced fork and 700c wheels. I go on touring trips with very flexible itinerary. I stay on gravel/tarmac/trail 80% of the time but occasionally I like ...
3
votes
1answer
122 views

Pressure range conflict between tire and rim

I just mounted a new Ardnet Race tire that has a side label pressure rating of 35 - 60 psi . The Stans Arch Ex rim that is mounted to says max pressure is 38 lbs, there is a little range on the ...
3
votes
1answer
113 views

Need help - changing tires/rims on Origin8 Intersekt 7

I bought an Origin 8 Intersekt 7 two years ago. Denver has so much construction, and "goat heads" that I've popped my tires 7 out of 8 rides. Needless to say, I'm way over it, and haven't ridden the ...
2
votes
2answers
9k views

Rear tire has started rubbing frame at one spot

Riding my bike within my suburban residential neighborhood, I felt a shock, like a snap although I don't think anything snapped, followed by a rubbing noise every few seconds. Pedaling and the brakes ...
2
votes
2answers
312 views

tube punctures near valve

my road bike got a puncture in the front wheel yesterday while I was riding down a big slope, it happened when I was braking the bike then I heard a pop. I stopped and replaced with a new tube, ...
2
votes
1answer
199 views

Upgrading tires on my road bike

I'm very new to the complex world of bicycles, so apologies ahead of time... I have a 2012 Giant Defy 1 (https://www.giant-bicycles.com/us/defy-1-2012) and am looking to upgrade the wheels to ...
2
votes
4answers
317 views

Steel rims responsible for slicing tubes?

I have an old Giant dutch bike and it has steel rims. Since I'm a big boy I felt that the 60PSI on the tyres is not enough and pumped my tyres to the maximum of 85PSI which is what my Schwalbe ...