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-   -   Bike with fat wheels (https://www.englishforum.ch/transportation-driving/299804-bike-fat-wheels.html)

Chin 25.08.2020 07:24

Bike with fat wheels
 
Hi,

I want to buy a bike with fat wheels out of fear of getting stuck on the tram lines. Does anyone have any bike recommendations for this? And are there any drawbacks to buying a bike with fat wheels riding through the city? Like are they slower?

Thanks

C

k_and_e 25.08.2020 07:34

Re: Bike with fat wheels
 
A fat bike is not a solution as it would feel similar to a motorcycle. Yes, they can't get stuck but the rails are still slippery.

Just use a normal bike. The chance you fall because of tram rails is not so big if you pay a little bit attention.

MusicChick 25.08.2020 07:41

Re: Bike with fat wheels
 
I like them. Are they softer on bumps?

Susie-Q 25.08.2020 08:17

Re: Bike with fat wheels
 
I wouldn't buy a fat tire bike, get a mountain bike...my favorite mode of transport and perfect for tram lines. :) (You still need to be cautious however)

They are slower than ultra light long distance street bikes...but unless you are looking to be a bike courier, it won't slow you down too much.

Tmow 25.08.2020 08:30

Re: Bike with fat wheels
 
It does slow you down a lot. The energy you need to move forward compared to road race bike is immense
Also let it roll out compared to road race bike is huge difference.

Patxi 25.08.2020 10:08

Re: Bike with fat wheels
 
As Basel is flat, I think a fat bike would be fine. Especially if you are just cruising around and your commute distance isn't too great. But, for the reasons stated above, it will require more energy to move yourself around.

If I lived in the city, I would seriously be looking into one of these: https://garth.at/

Axa 25.08.2020 10:31

Re: Bike with fat wheels
 
Well, it depends :D Fat tire mountain bikes have tires wider than 10cm (4 in). It takes a lot effort to make them spin and once they spin the large tire knobs slow you down quickly.

There are city bikes that have wider tires 3.5-4.5cm like this one ( https://www.canyon.com/de-ch/hybrid-...-5.0/1955.html ). It's a nice compromise between tires wide enough to be comfortable on the city, relatively low rolling resistance, and it has mudguards to keep your rear dry. The only downside is the price, they offer more or less the same as mountain bikes but usually at twice the price.

That brings us to modern mountain bikes that have tires between 5-6.5 cm width. A bit more rolling resistance that a city bike but also more comfortable because tires work at lower air pressure. Mountain bikes also brake better in the wet, you don't have to be a expert in braking to avoid sliding and falling. They're also cheap because everyone is selling one that has been forgotten on the cellar. Another upside of a MTB is you can bring it to the dirt any day, no worries.

Finally, rent bikes and test them until you find the right one. There are bikes for rent in local shops, train stations, bike fairs, etc.

Tom1234 25.08.2020 10:34

Re: Bike with fat wheels
 
Or instead of fat tyres, how about one of these:

https://www.bikeride.com/images/bike...AC_SL1500_.jpg

Alternatively, just get used to riding near tram tracks. To be honest, after a bit of time, in a city, you'll realise they're the least of your worries.

Make a rule of only crossing them at near-right-angles.

Chin 25.08.2020 12:10

Re: Bike with fat wheels
 
Thanks everyone for your super helpful suggestions! It sounds like a mountain bike would be my best bet as well as ensuring that I don't ride alongside tram lines to avoid getting stuck. Luckily Basel Stadt is quite bike friendly so hopefully I don't have any accidents!

Bossa Nova 25.08.2020 12:42

Re: Bike with fat wheels
 
Quote:

Originally Posted by Chin (Post 3210526)
Thanks everyone for your super helpful suggestions! It sounds like a mountain bike would be my best bet as well as ensuring that I don't ride alongside tram lines to avoid getting stuck. Luckily Basel Stadt is quite bike friendly so hopefully I don't have any accidents!

While a mountain bike sounds as though it would be appropriate for you, keep in mind that you don't need or want the type of suspension most mountain bikes have. I think you also shouldn't have knobby tires for riding in the city, as their rolling resistance is very high, you need to pedal like heck to keep your speed up on tarmac.

Also consider how you will transport your stuff while on a bike. I personally hate having anything on my back. I have a rear rack on which I can mount panier bags, but some people like having an rear-mounted basket in which you can throw e.g. your laptop back or handbag.


https://i1.ytimg.com/vi/DHL0AtaU0HE/maxresdefault.jpg

coolbeanz 25.08.2020 22:15

Re: Bike with fat wheels
 
Sorry to get nerdy, but I feel that it is my duty to debunk the wider tyre equals more rolling resistance myth. Wider tyres actually offer LOWER rolling resistance. It's a bit complicated to explain, but basically a wider tyre will have a shorter contact patch than a narrower tyre inflated to the same pressure, and hence less tyre deflection. There has actually been a general trend amongst road bikers moving away from 21-23c width tyres and towards wider 25c-28c tyres in recent years.

Of course, this is not to say that wider tyres are faster, as this will also be determined by a number of other factors, notably, rotational mass (a wider tyre not only requires more material, but also a wider rim), tread pattern and rubber compound.

As for the type of bike, the world's your oyster. Depending on your riding style, at one end of the spectrum, you could go for a classic Dutch bike (they typically run fairly wide tyres), you could get a mountain bike and fit it with slick tyres (which will still be wide), or you could even get a 'gravel' bike which is essentially a road bike with wider tyres to cope with a wider variety of terrain. You'd be looking at 1.5-2.5" tyre width in most of the above-mentioned cases. Of course, you could go extreme and buy a fat bike, which will come with 4-5" tyres (you can actually get replacement slicks for those as well), but that will of course be complete and utter overkill.

The bottom line is that anything over 1" in width will be more than capable for riding on bumpy city roads, but 1.5-2.5" will give you better comfort and traction. As for the tram tracks, just look ahead and approach them as square on as possible. I'm sure that your fear will dissipate after a few rides.

Jdr 25.08.2020 23:12

Re: Bike with fat wheels
 
Quote:

Originally Posted by Tom1234 (Post 3210486)
Or instead of fat tyres, how about one of these:

https://www.bikeride.com/images/bike...AC_SL1500_.jpg

Alternatively, just get used to riding near tram tracks. To be honest, after a bit of time, in a city, you'll realise they're the least of your worries.

Make a rule of only crossing them at near-right-angles.


Nah, how about one of these :



https://www.velomobiel.nl/alpha7/


50 km/h sustained, on human power alone, and no fear of tramrails !

Flying Kite 26.08.2020 00:33

Re: Bike with fat wheels
 
...they are good...but are draging 20% more of your power...because of friction and other forces...

Castro 26.08.2020 00:48

Re: Bike with fat wheels
 
Quote:

Originally Posted by Chin (Post 3210406)
And are there any drawbacks to buying a bike with fat wheels riding through the city?

City ordinances decree that you will need to wear a Hawaiian shirt and flip-flops.

BasP72 26.08.2020 08:12

Re: Bike with fat wheels
 
Quote:

Originally Posted by coolbeanz (Post 3210840)
Sorry to get nerdy, but I feel that it is my duty to debunk the wider tyre equals more rolling resistance myth. Wider tyres actually offer LOWER rolling resistance.

Ah so this is why the Tour the France rides around on fat tires ?

OP, if you want to feel safe, have you thought about a bike with 4" wide tires and an electric motor ?

KiwiSteve 26.08.2020 08:20

Re: Bike with fat wheels
 
For city use:
inflate mountain bike tyres to the max (maybe less in winter)
adjust front suspension to fairly rigid (still useful for bumping up and down kerbs.
rear suspension a waste of energy
use studded winter tyres - I use one on the rear wheel all year long, is this logical?

GenevaSculler 26.08.2020 09:40

Re: Bike with fat wheels
 
True when you are talking about road racing and running the fastest race tyres (I'm running 32s on my commuter and 25s on my race bike now for the reasons you mention) but not really relevant to this discussion. Have a look at https://www.bicyclerollingresistance.com/ and click on the Road Bike, Mountain Bike and Fat Bike tabs at the top to see the rolling resistance results - the absolute best Fat Bike tyre is costing over 30w extra (for a pair) in drag vs. the top Road Bike tyre.

Quote:

Originally Posted by coolbeanz (Post 3210840)
Sorry to get nerdy, but I feel that it is my duty to debunk the wider tyre equals more rolling resistance myth. Wider tyres actually offer LOWER rolling resistance. It's a bit complicated to explain, but basically a wider tyre will have a shorter contact patch than a narrower tyre inflated to the same pressure, and hence less tyre deflection. There has actually been a general trend amongst road bikers moving away from 21-23c width tyres and towards wider 25c-28c tyres in recent years.

Of course, this is not to say that wider tyres are faster, as this will also be determined by a number of other factors, notably, rotational mass (a wider tyre not only requires more material, but also a wider rim), tread pattern and rubber compound.

As for the type of bike, the world's your oyster. Depending on your riding style, at one end of the spectrum, you could go for a classic Dutch bike (they typically run fairly wide tyres), you could get a mountain bike and fit it with slick tyres (which will still be wide), or you could even get a 'gravel' bike which is essentially a road bike with wider tyres to cope with a wider variety of terrain. You'd be looking at 1.5-2.5" tyre width in most of the above-mentioned cases. Of course, you could go extreme and buy a fat bike, which will come with 4-5" tyres (you can actually get replacement slicks for those as well), but that will of course be complete and utter overkill.

The bottom line is that anything over 1" in width will be more than capable for riding on bumpy city roads, but 1.5-2.5" will give you better comfort and traction. As for the tram tracks, just look ahead and approach them as square on as possible. I'm sure that your fear will dissipate after a few rides.


aSwissInTheUS 26.08.2020 10:00

Re: Bike with fat wheels
 
Quote:

Originally Posted by coolbeanz (Post 3210840)
Sorry to get nerdy, but I feel that it is my duty to debunk the wider tyre equals more rolling resistance myth. [...]There has actually been a general trend amongst road bikers moving away from 21-23c width tyres and towards wider 25c-28c tyres in recent years.

Those numbers denote diameter?:confused: Diameter is not "wide", and a larger diameter does not mean "wider".

Ato 26.08.2020 10:08

Re: Bike with fat wheels
 
Quote:

Originally Posted by aSwissInTheUS (Post 3210948)
Those numbers denote diameter?:confused: Diameter is not "wide", and a larger diameter does not mean "wider".

I'm assuming they mean mm width.

There has been a trend to widen tyres and lower pressures over the last 15 years with the 21's being replaced by 23's, then 25's and I think the current TdF bunch are mostly running 28mm width. There is some stirrings to go wider again as with disc brakes there is less of a clearance issue for brake calipers.

With regards to rolling resistance, in lab conditions on a smooth wheel higher pressure skinny tyres work well, on rougher roads lower pressure wider tyres work better. So if you're in the velodrome you can run your 23's at 150psi, on the road you'd be bouncing around all over the place.

Patxi 26.08.2020 10:13

Re: Bike with fat wheels
 
Quote:

Originally Posted by aSwissInTheUS (Post 3210948)
Those numbers denote diameter?:confused: Diameter is not "wide", and a larger diameter does not mean "wider".

I think you might be confused here. We aren't talking about wheel diameter but a cross section of tire itself, the width.


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