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20 votes
Accepted

Can I ride on the beach with 32c tires?

While my initial attempt with lightly deflated tires was not a success (I could only bike 100 m before being exhausted) my second attempt went much better. Based on your helpful answers, comments and ...
Saaru Lindestøkke's user avatar
19 votes
Accepted

Is rolling resistance that significant?

Yes - rolling resistance is significant. It is less important than aerodynamics, but is next in line. A harder tyre deforms less, and if everything else is unchanged, a lower pressure tyre is slower ...
Criggie's user avatar
  • 128k
13 votes

Will 2.1" schwalbe MTB tire in 25mm rim become wider that 2.25" in 19mm rim?

I ended trying it. Here is the result: Nominal tire width Rim internal width Resulting width 2.25" (57mm) 19mm 55mm 2.10" (53mm) 25mm 52mm
FoxVK's user avatar
  • 163
11 votes

Is it worth upgrading to 28mm tyres from 25 for a 250 mile ride?

If you're going to change anything before the big event, change it now and allow time for any problems to arise, then be sorted out before the event. Generally, a 28mm tyre is said to give lower ...
Swifty's user avatar
  • 12.9k
10 votes
Accepted

Why merida endurance 5000 has 32c tyre

The Merida Scultura Endurance 5000 is an endurance bike. It is not an aero road bike, by which I mean something like the Specialized Venge or Cervelo Soloist that's designed to maximize aerodynamics. ...
Weiwen Ng's user avatar
  • 34.1k
9 votes

How does the new Canyon Endurace rim version support 33mm tyres with R7000 brakes?

I talked to Canyon's support and they have clarified that apparently it's an error.
Tom H's user avatar
  • 455
9 votes

Is rolling resistance that significant?

How significant is rolling resistance? It's the second most important continuous resisting force on a bike. When you ride uphill, depending on the slope of the hill, the most important resistance is ...
juhist's user avatar
  • 20.2k
8 votes

Can I ride on the beach with 32c tires?

Yes on hard sand it should be fine. The problem is what if it is not hard or there are patches of dust. At that point it will be a bit more tricky. The good part is you are on a bike and on sand. So ...
Tude Productions's user avatar
8 votes
Accepted

What's to stop someone from installing the largest tyre that'll fit?

Nothing stops. IF the tyre indeed fits (not just one paper through some uncertain number like 28 mm or 2.4", but by actual trying the clearance), there is no reason not to use it if the rider has ...
Vladimir F Героям слава's user avatar
7 votes

Is rolling resistance that significant?

If we go by https://www.bicyclerollingresistance.com there is about 10W of difference between the fastest and slowest touring tyres (they measure at 28km/h with a 45kg load and 5.2bar of tyre pressure ...
Michael's user avatar
  • 28.4k
6 votes

Is rolling resistance that significant?

Minding 'rolling resistance' is essential for leisurely rides and for races. source Jumping from a road bike with slicks @ 5 atm to mud tires (meaning huuuge knobs) @ 2 atm almost halves my commute ...
Vorac's user avatar
  • 13.9k
5 votes

Can I ride on the beach with 32c tires?

I haven’t seen the beach, or tried to cycle on one. I have at least cycled through numerous sandpits, a common obstacle in cyclocross races (and traditional CX tires are 32-34mm wide). I would guess ...
Weiwen Ng's user avatar
  • 34.1k
5 votes

Is it safe riding 25 mm clicher tyres on 25 mm rims?

Based on https://bicycles.stackexchange.com/a/52590/ a 25mm tyre is best on a rim with an internal width between 13 and 19mm. If your rim's internal width is 25mm, then it is intended for use with a ...
Criggie's user avatar
  • 128k
4 votes
Accepted

Can I run a 2.5" tyre on a 40mm rim?

A slightly narrower tire should be fine in terms of fit on the rim. Check the manufacturer's specifications for compatible rim sizes to be sure. You will lose some volume and impact absorption of ...
Argenti Apparatus's user avatar
4 votes

Can i fit 26 x 2.3 tyre to 559 x 19c rims?

It will be on the squirrely and unstable side, especially if ridden aggressively, but this combination was common when narrow MTB rims were more fashionable and ubiquitous, so it will in all ...
Nathan Knutson's user avatar
4 votes

Why merida endurance 5000 has 32c tyre

Endurance riding is what I do, and the difference between 28 and 32mm tyres is significant for a few reasons: vibrations and small bumps really add up over the hours (I particularly found my wrists ...
Chris H's user avatar
  • 60.8k
4 votes

Does "ETRTO" apply also to tyres?

The actual standards are behind a paywall but ETRTO https://www.etrto.org/ publishes standards about both rims and tyres for many kinds of vehicles, including bicycles. Some recommendations can be ...
Vladimir F Героям слава's user avatar
4 votes
Accepted

How can I determine the maximum tire width that my Shimano bike frame and fork can accommodate?

Shimano is a manufacturer of bike components. You need to find the information about tire clearance of the bicycle frame and fork, find the make/model and find the information about it on the website ...
deimos's user avatar
  • 141
4 votes
Accepted

Will a 54-507 inner tube work with a 50-559 tyre?

No sorry. 507mm is a 24" wheel, and 559mm is a 26" wheel. Your existing tyre is 559mm so your rim is also that size, and thus your tubes have to fit it. Good news is that 559mm is a common ...
Criggie's user avatar
  • 128k
4 votes
Accepted

Will 2.1" schwalbe MTB tire in 25mm rim become wider that 2.25" in 19mm rim?

Assuming that the manufacturer's claims about the tyre width are accurate (which they absolutely are not), a 6mm increase in rim width will not make a 2.10" (53,34mm) tyre wider than a 2.25" ...
Torben's user avatar
  • 429
3 votes
Accepted

What are the advantages of having a road bicycle frame with lower tyre clearance?

It could allow for slightly better aerodynamics and a slightly lighter frame. It allows for a shorter wheel base and you don’t have to worry about toe strikes (toe overlap) too much. It also looks ...
Michael's user avatar
  • 28.4k
3 votes

The truth about Inner Rim Width

Visualize the extremes, i.e. a rim that was "obviously" too narrow for a 2.1". Say 10mm internal. As you get narrower, the handling gets floppier, particularly in aggressive riding. The ...
Nathan Knutson's user avatar
3 votes

Can I ride on the beach with 32c tires?

Beach races are quite standard, but there's a difference between soft and hard. There is nothing very complicated about bringing a vehicle over sand, and no strict cut-off point. However this is a ...
thelawnet's user avatar
  • 4,240
3 votes

Relationship between given width of a tire and actual height

In bicycle tires the height and width are directly related. This is because unlike unlike car and motorcycle tires, the cords that hold the tire together are aligned diagonal and the resulting fabric ...
ojs's user avatar
  • 22.2k
3 votes
Accepted

Which size SKS Bluemels will fit my frame - 35, 42, 45?

Choosing a maximum size for a given frame is not an exact science. It's done by either mounting or approximating the widest size tires you want to be able to run and then using a caliper or ruler to ...
Nathan Knutson's user avatar
3 votes

Changing 23mm tyre to 25mm - considerations?

23 to 25 is pretty minimal - you might not feel much of a difference. I'd look at the chainstay and seatstay gap, and then the brake bridge to see how much space you have, and then go for the largest ...
Criggie's user avatar
  • 128k
3 votes
Accepted

Changing 23mm tyre to 25mm - considerations?

The two things to consider when increasing tire size are compatibility with the rim width and frame/fork clearance. Inner tubes fit a range of tire sizes. 15mm rims will easily take 23 or 25mm tires....
Argenti Apparatus's user avatar
3 votes
Accepted

Compatibility of tyres with wheelset

Per the technical specifications page for your bicycle: MAXIMUM TYRE DIMENSION (ETRTO) 70 mm 70 mm is 2.75 inches, so a 2.60 tyre should fit. Tyre sizes are notoriously imprecise, but a 2.60 ...
Andrew Henle's user avatar
  • 10.8k
3 votes
Accepted

Tacx Flow Smart trainer calibration issues with 700x35c tyre

After listening to advice from @Carel, I warmed the tyres up for 20 minutes, a lot more than I would have envisaged, and I finally got consistent results being able to calibrate more than once. After ...
physicsboy's user avatar
3 votes

Tyre fiiting with 20x2.4 tyre

You should be able to fit it as the tire width is wider then the rim width BUT you should check if the tire will fit in your frame.
nollak's user avatar
  • 881

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