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Old 2020-01-04, 06:02 PM   #1
mczonie
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Biggest wheel practical for stop-and-go riding?

I'm looking for a new uni for transportation in a downtown area with a lot of stop-and-go. Id be grateful for opinions on whats the best wheel size, which is to say the largest size that is practical for that kind of riding. TIA
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Old 2020-01-04, 06:08 PM   #2
tholub
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Depends on your distances, but I like a 29er with 110mm cranks for getting around the city. Very flexible for getting on transit or in a car, maneuverable enough, idleable. For distances up to about 5km I think that's ideal. Longer than that and the 29er starts to get boring to ride.

Some people use a 36 but it's a lot more ungainly.
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Old 2020-01-04, 11:48 PM   #3
Unigan
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Like tholub said it really depends on how much distance you plan to ride if it's 1-2K's a 24" would be ideal. I was travelling around Australia last year with a 20" ALDI uni and since I was still learning it was great I just pulled it out any place we stopped went for a quick ride and threw it back in the car. Later I went south into NSW/VIC and I bought a 24" Nimbus II specifically for that trip and it was just the perfect size to fit in the boot of a car and to get around small towns quicker. Was also great for getting around the twelve apostles park quicker then walking.

When I didn't have a handle bar on my 29/36 they fit in the back of my hatchback without having to put the seats down. As for taking them on public transport I would think 29+ would be a little too big. Something smaller then 29 would be the way to go as you can take them into places and people generally don't mind and then you don't have to worry about locking them up.
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Old 2020-01-05, 07:33 AM   #4
Mikefule
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Depending on your confidence with freemounting, 29 is generally the most practical all round size. A dismount or mount takes very little time or energy, and is less likely to be affected by traffic, pedestrians etc.

I commuted for a few months and tried every uni in my fleet (20, 24, 24 muni, 28, 29 and 36) and found the 29 the least stressful.

Fpr comparison, except when tired or on difficult terrain, my freemount percentage on the 36 is as near as dammit 100%, I can idle it for short periods, and I can ride for well over an hour without a dismount, including hills, rough ground etc.

However, I'd still choose the 29 for the circumstances you've described.
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Old 2020-01-05, 07:39 AM   #5
johnfoss
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I agree with Tom about 29"; probably the biggest wheel you'd want to be stopping and going with, though it's still a little on the large size. And 110 cranks are good, though if you don't feel confident, start with a longer size and work your way down as you build confidence.

Smaller wheels can also work if your distance isn't too far.
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Old 2020-01-06, 09:41 PM   #6
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I quite liked riding a 26 with 110mm cranks as a general around town ride. A skinny 28 with 102s was also fun but not as good in the stopping department, but damn it was agile. I'm sure 29 would be fine if you are used to the size but I wouldn't want to deal with pedestrians in tight confines with a larger uni like a 32 or 36 (been there, done that, not as much fun).
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Old 2020-01-06, 09:57 PM   #7
mrfixit
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I don't have a 29. But do have 26 and 32. I would never want to manuever around pedestrians on a 32. But I can and do work around people on a 26" with a 3" tire very easily (after a couple years). I wonder what the 26x3 diameter would measure. probably a little smaller than a 29 " skinny..?
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Old 2020-01-06, 10:27 PM   #8
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I'll add a vote for a 26". Never ridden a 27.5" but it might be similar. I think 29" is a bit on the heavy side and less urban friendly.

But... I'm also someone who happily rides 10km plus in urban spaces on a 24".
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Last edited by Gockie; 2020-01-06 at 10:30 PM.
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Old 2020-01-07, 01:39 PM   #9
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I think a 26" with shorter cranks (I normally use 100mm) is pretty nice to be honest. Easy to mount, easy to go slow when needed but possible to maintain a nice little cruising pace if you want. You certainly won't be the fastest thing around but a lot faster than walking and even jogging, while being more fun and less effort. Also small enough to take on crowded public transport for mixed-mode commuting (just stand and hold it in front of you).

Of course a 24, 27.5 and 29 could all work too, and will have their strengths depending on how crowded and chaotic it is but with the little information you have given, 26 would get my vote. It is worth remembering that every uni size involves compromises.

Last edited by ruari; 2020-01-07 at 02:04 PM.
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Old 2020-01-07, 01:50 PM   #10
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Quote:
Originally Posted by mrfixit View Post
I wonder what the 26x3 diameter would measure. probably a little smaller than a 29 " skinny..?
Here is my Nimbus 26” with a Duro “Beach Bum” 26x3.0/70-559, next to my Schwalbe “Marathon” 28x1½/40-635 wheeled Pashley:



Here is my Nimbus 26” with an Innova “City Tire” 26x3.0/76-559, next to UniMyra's spare QU-AX 29” (29X2.1/54-622):


Last edited by ruari; 2020-01-07 at 02:19 PM.
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Old 2020-01-07, 05:01 PM   #11
Canoeheadted
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Let's try this by your height...

Sub 5'6" = 24"-26"
5'6"-6' = 27 1/2"
6' plus = 29"

For a skilled unicyclist that can freemount and ride slowly I would go to a 32" for under 6' and 36" for over 6'.

Let's see how this applies.
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Old 2020-01-08, 10:48 AM   #12
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I'd say depends on the distance. But also depends on the type of city you live in.

I see a lot of my fellow europeans advising on a small-ish wheel. Which totally makes sense in our small cities with crowded sidewalks, small streets, not many straight fast tracks. If that's the case, then yes, up to 29" would work.

But if MCzonie lives in the US in a big city, then I wouldn't go for such a small wheel. I'd start at 29", with 110mm cranks if skilled (125mm if less confident), or go straight to 32", the last size that can easily be freemounted (if you're in the 6ft tall region) without having to do a run mount/jump mount.
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Old 2020-01-08, 02:30 PM   #13
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I am with those recommending the 29. I have been riding a 36 the past year, but haven't gotten much ride time in the last few months. I live in a very hilly area (typical ride is at least 75 feet of elevation per mile, sometimes in the 100 feet per mile range) so starting riding again when my fitness is low is very tough with the 36.

I got a 29 for Christmas and I have ridden that for 4 rides a week for the past few weeks. Yesterday, I decided to ride the 36 on the same 9 mile loop that I have been riding. Besides being more difficult uphills, what really stood out was how ungainly and heavy the 36 felt compared to the 29. It is another level or 2 more difficult to ride and mount.

The loop I use has about 6 places that I need to cross at a light. Most of the time I prefer to stop and walk across for safety reasons. It was a lot easier with the 29.

That said, if you consistently ride the 36 or 32, it will get easier in all ways as you gain skill and fitness. Probably depends are where you are starting from skill and fitness wise. They will always be more ungainly, but your skills will improve.

The only advantage in my mind to the larger wheels is ability to go faster at lower cadence. 36 is theoretically a 20-24% faster uni to a 29 depending on tire size on the 29.

If I had to choose at my current level, I would choose the 29. As I get better the 36.

*note: the loop on the 36 for me is about a 9.5 on the "how hard was that" scale. The 29 is a 7. I am barely completing the loop on the 36. If I kept riding the 36, the difficulty rating would move down to probably about an 8 in a month's time of consistent riding.

Here is my 36 ride on Strava:

https://www.strava.com/activities/2991615603


Here is a similar loop on the 29:

https://www.strava.com/activities/2982597320

Note that the average speeds are not that different for me. 5.7 to 6.4 (29 to 36). I'm not a particularly fast rider at this point (10 mph on the 36 on the flats) and the hills really slow down the average.
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Old 2020-01-08, 04:40 PM   #14
Geolojas
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The 29" is a good choice, but anymore I like to get around downtown Sacramento on my 36. As long as I'm not worried about lots of pedestrians, its just quicker and more fun. Also, more compatible with the bike lanes.

Other advantages are: you'll get a lot better a freemounting; and you'll also get better at hopping or still-standing at stoplights.
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Old 2020-01-09, 04:49 AM   #15
elpuebloUNIdo
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Quote:
Originally Posted by tholub View Post
but I like a 29er with 110mm cranks for getting around the city
I know tholub is an amazing rider. I wonder, though, how many average riders could manage a 29/110 setup, not to mention in an urban setup with lots of potential obstacles. I may not be qualified to comment, never having ridden on cranks as short as 110mm, but it seems that you have to be well-balanced and able to ride in a very controlled fashion to manage with the above setup.

A 29/110 setup will give you a good cadence/speed, but you would need to be an expert with a brake to stop suddenly without crashing or UPDing. If you ride in a busy environment with this setup and run into something, it's your fault...for riding when you should have walked the uni across the street and for picking a fast and hard-to-stop setup.

tholub mentioned being able to idle on this setup. I would like to know how many riders on this forum can monitor the 360 degree space around them while idling. My point is that it is not nearly as safe as getting off the unicycle. I can only imagine, too, that the sight of a unicyclist idling must be confusing to drivers.

I don't know anything about the riding ability of the OP. At the very least, the urban 29/110 setup seems like something you'd have to work towards.
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