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Are 29er 5 inch Fat Bikes In Our Future?

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Are 29er 5 inch Fat Bikes In Our Future?

Old 10-31-14, 11:13 AM
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Are 29er 5 inch Fat Bikes In Our Future?

First, forgive me if this should be moved to the Mountain Biking section. Anyways...

Would 29er 5" be a viable option? Would the extra weight really be that much, considering the already-much rubber on 26" 4.8-5" tires? How much would climbing suffer or benefit?

I think I would definitely consider purchasing one. This bike would be a full blown monster. I also think it would be the end-all of maxing out fat bikes, unless they went to 6" in 26 or 29 someday. Geez. Sound fun?

What's your opinion on a 29er with 4.8 or 5"? Is this the next "first" for Surly? Surly, are you reading this?
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Old 10-31-14, 12:41 PM
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There's function and there's style.

Function has limits. You start with the nature of the surface you're riding on and adjust your tire to reach the maximum benefit. You will eventually find a point at which bigger, fatter tires will become a drawback.

Style has no limits.
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Old 10-31-14, 12:55 PM
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Originally Posted by Retro Grouch View Post
There's function and there's style.

Function has limits. You start with the nature of the surface you're riding on and adjust your tire to reach the maximum benefit. You will eventually find a point at which bigger, fatter tires will become a drawback.

Style has no limits.
Yeah, I hear ya. This has to do with function and not style. The terrain traversed on a 29er 5" tire could be intense. 29ers are already pushing almost 4" but we're still stuck with 26" for the fat 5 inchers. I don't see any real weight drawbacks of a 29er 5" over the fat tires of now. I imagine being non stoppable along a rough river valley -- but with that comes climbing also. I think the size factor would trump weight. Maybe a fat 5" in rear and a "skinny" (lol) 3.5-incher in front The only thing holding me back from climbing some hills is pure traction (and gear ratios). 29er 5" would push the envelope even more, I would think.

I imagine we WILL see this size soon.

EDIT:
When I first saw the full suspension Salsa Bucksaw, I thought, "Okay, but only for bombing down a rut torn, tree root infested 45 degree decent at 50mph." I still think that. But for traction and traversing stuff that only opossums walk, I can see the use of fatter, bigger diameter wheels being a bigger advantage over full suspension.

Last edited by RatMudd; 10-31-14 at 01:14 PM.
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Old 10-31-14, 01:03 PM
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The 26" 4.8 tires are already just about 29ers. Don't think you need them that big.
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Old 10-31-14, 01:07 PM
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What's next? Use such a bike to crush other bikes?
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Old 10-31-14, 01:13 PM
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Originally Posted by achoo View Post
What's next? Use such a bike to crush other bikes?



Mwaaa haaaaa haaa haaa, Mwaaa haaa haaa haaa

The Dillinger 4's on mine are already taller than the 700X32s it sits next to.
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Old 10-31-14, 01:19 PM
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Originally Posted by Leebo View Post
The 26" 4.8 tires are already just about 29ers.
Yes. Hence the idea of a 29er 5" leaving even more of a footprint.
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Old 10-31-14, 01:33 PM
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Next fat tire 36 ers ..
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Old 10-31-14, 01:44 PM
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Old 10-31-14, 01:56 PM
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Originally Posted by fietsbob View Post
Next fat tire 36 ers ..
I was just thinking that, lol. But I think they need a new lighter tire compound first.

How about for downhill racing? Lol... A 36er with 10 inches of travel and 6" tires on 50-hole hubs? I think steering response would hinder drastically due to the centrifugal force at 65 mph, lol.

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Old 11-03-14, 12:53 PM
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Originally Posted by fietsbob View Post
Next fat tire 36 ers ..
They already make regular 36er's.
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Old 11-03-14, 01:19 PM
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Originally Posted by Leebo View Post
They already make regular 36er's.
Holie cow, I had to Google "36er bike" to be sure. You are very correct!
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Old 11-03-14, 01:19 PM
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Seen someone doing 20 something MPH on a Unicycle with a 36" wheel, going thru town years ago..
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Old 11-03-14, 01:37 PM
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36er uphill stair ride:
https://m.youtube.com/watch?v=fYt6IqaHk_Q
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Old 11-03-14, 05:43 PM
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Yeah I've known about 36ers for about 2 minutes now and already have one on my mental wish-list.
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Old 11-08-14, 11:22 AM
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In the mid-00s scwhinn made a 30" wheeled cruiser, so it's not that impressive. I still want one of those sxhwinns, though.
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Old 11-08-14, 07:06 PM
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Pass. I'll stick with my cx bike and 32c tires. Don't do enough offroad to want more and riding a fat bike on the road to the trail is seriously no fun.
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Old 11-09-14, 08:07 AM
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I see the whole "fat Tyre" thing to be a fad that will pass. Sure, they will be around for specialty applications; but the popularity will wane. As it is I see them on th estreet being used where other, more efficient tyres would be a better choice.

As was said above, there is nothign wrong with style. However, attitudes about style will change.

About the only place I can see a fat tyre as superior is the, as mentioned, extreme downhill, and on an e-bike. If I am wrong and the fat tyre has some advantage to daily riders I would love to hear it. I like the idea of softening the ride a bit without the complication and inefficiencies of suspension (thus their possible application on e-bikes); however, I do not think that they can make up for the losses from additional road and sidewall friction.
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Old 11-09-14, 08:41 AM
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The Grandfondo we did a few weeks back a women rode the whole thing on a surly fat bike. Took her a very long time and everyone was impressed when she finished. She swore she'd never do it again on a fat bike!
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Old 11-09-14, 10:57 AM
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Originally Posted by Robert C View Post
About the only place I can see a fat tyre as superior is the, as mentioned, extreme downhill, and on an e-bike. If I am wrong and the fat tyre has some advantage to daily riders I would love to hear it. I like the idea of softening the ride a bit without the complication and inefficiencies of suspension (thus their possible application on e-bikes); however, I do not think that they can make up for the losses from additional road and sidewall friction.
Point of comparison: the ultra-mileage VW XL1 uses 5" wide front tires: 2014 Volkswagen XL1 First Drive on Edmunds.com . It's crazy world when bicycles have wider tires than cars. (I know, I know... horses for courses. Both are single-purpose vehicles taken to extremes.)
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