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Know of a Uni seat that's safe for guys?

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  • OneTrackMind
    replied
    Originally posted by Mikefule View Post
    Only where R+C<L+M

    R = radius of the wheel
    C = crank length
    L = inside leg measurement
    M = a safety margin
    Someone posted video of a 50-ish UW last year. M was approaching zero.

    Leave a comment:


  • Mikefule
    replied
    Originally posted by harper View Post
    The obvious solution is to ride an ultimate wheel.
    Only where R+C<L+M

    R = radius of the wheel
    C = crank length
    L = inside leg measurement
    M = a safety margin

    Leave a comment:


  • harper
    replied
    The obvious solution is to ride an ultimate wheel.

    Leave a comment:


  • lightbulbjim
    replied
    Originally posted by andyvanb View Post
    It is, I believe, a "nutcrusher."
    Nope, but it does look like an older design that most people wouldn’t use anymore for comfort reasons. Why not try some different/newer designs before reinventing the wheel?

    My anecdata: before learning to ride a unicycle I had zero kids. I now have two. I can only conclude that unicycle saddles increase fertility .

    Leave a comment:


  • LanceB
    replied
    Some road riders like these. I think they take some getting used to, but they definitely do not put pressure on the prostate. (I tried one once, it was OK.)
    Attached Files

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  • Mikefule
    replied
    Originally posted by Setonix View Post
    I figure it also depends on how slim or heavy you are. Currently I should lose some weight and my thighs are fatter, giving me less space around the seat. After 20km riding my Nimbus 29" gel stock seat, I have chafing to the side and sometimes I feel numb at the crotch area, also like Klaas Bil described in one of his threads.
    Once I get serious about not eating so much sweet stuff and lose some weight, Im sure the seats will become more comfy too.
    I broadly agree, but the original question referred to seats being safe testicles, by which I assume the OP meant not crushing or damaging them.

    Unicycle seats are not going to crush your nuts in normal riding, by which I mean mounting with reasonable care and skill, and riding long distances mainly sitting down.

    Yes, of course a rider may briefly trap or otherwise hurt his nuts if he mounts inexpertly, or does some sort of a hop or drop landing clumsily, but no design of seat, or anything else that goes between your legs, will ever eliminate that risk.

    Leave a comment:


  • andyvanb
    replied
    Design Started

    Guys,

    Here's a first look at the design we are looking at. We will likely print it this week, and then just try it out for feel. It will have foam padding added to it. I'd add the STL model file to provide a 3D look, but the forum won't allow that kind of file.

    This is a copy of a seat we have now. It is, I believe, a "nutcrusher." Net steps would be to flatten out the front to make it non-nutcrusher, add curves (a radius) to the top of the sidewalls for comfort.

    -Andy
    Attached Files

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  • pierrox
    replied
    Originally posted by andyvanb View Post
    ... into padded rails on either side
    ...
    What do you guys think of the concept?
    Yep it reminds me of the concept saddle developed by Mad4One:
    Trials Saddle
    You're free to pad it the way you want. The original idea was not to protect privates but to provide different/additional ways to grab the seat whilst doing tricks. Some people are starting to use it in freestyle, and they're now developing a version that has a longer front to act as a handle for muni/road touring.

    Leave a comment:


  • OneTrackMind
    replied
    Originally posted by andyvanb View Post
    The seat would curve outward to the left and right (fork) into padded rails on either side that would provide pressure between the uni and the person's groin (where leg meets pelvis). Kind of like the perineum groove but gone HUGE!
    I wouldn't like a saddle too much wider in that area. Chaffing is an issue for some riders.

    But as I said in the previous post, it isn't about making the saddle accommodating, but getting "them" away from the saddle entirely.

    There is no going back after discovering padded bib shorts. And BTW cotton shorts over the Lycra is great for avoiding friction and wear against the saddle.
    Last edited by OneTrackMind; 2018-08-28, 09:59 AM.

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  • OneTrackMind
    replied
    I have a variety of Nimbus and Freeride saddles and a fairly flat one with a carbon fibre base. I don't have interference problems with any of them.

    The key to protecting "the equipment" is cycling shorts. The stretch fabric is meant to hold things where you put them so you put it all up out of the way of the saddle. The shorts need to be very close fitting to work properly.

    I like climbing hills so I ride long stretches out of the saddle. Settling back only to encounter delicate obstructions that have slowly descended during the climb is a demount-demanding predicament best avoided.

    Bib shorts are what is really called for because the over-the-shoulder design ensures that gravity does not prevail. Then I back this up with cotton shorts and braces. I only use ordinary bike shorts if I am just riding around on flat areas.

    Leave a comment:


  • Setonix
    replied
    Originally posted by Mikefule View Post
    All of them.

    I would be very surprised if the doctor had any knowledge of what "stresses" a unicycle seat puts on a man's testicles.

    I think most men would notice stress to the testicles quickly and without medical advice. If they're being squashed, they hurt.

    I suspect that, at best, the doctor is speculating and being overcautious.

    I have spent hours in the saddle without a dismount on various unicycle seats without discomfort to that part of my anatomy — seats ranging from the heavy and clumsy old Viscount, to the light and barely padded Miyata, to various KH and Nimbus saddles. Nerve damage to the area around the sit bones or perineum, I could understand, but only if someone rode extraordinary distances day after day.

    Get on carefully, take a moment to adjust, ride.
    I figure it also depends on how slim or heavy you are. Currently I should lose some weight and my thighs are fatter, giving me less space around the seat. After 20km riding my Nimbus 29" gel stock seat, I have chafing to the side and sometimes I feel numb at the crotch area, also like Klaas Bil described in one of his threads.
    Once I get serious about not eating so much sweet stuff and lose some weight, Im sure the seats will become more comfy too.

    Leave a comment:


  • Mikefule
    replied
    Originally posted by andyvanb View Post
    The question for any of you, is, do you know of any men's seats out there that are really safe for guys testicles specifically?
    All of them.

    I would be very surprised if the doctor had any knowledge of what "stresses" a unicycle seat puts on a man's testicles.

    I think most men would notice stress to the testicles quickly and without medical advice. If they're being squashed, they hurt.

    I suspect that, at best, the doctor is speculating and being overcautious.

    I have spent hours in the saddle without a dismount on various unicycle seats without discomfort to that part of my anatomy — seats ranging from the heavy and clumsy old Viscount, to the light and barely padded Miyata, to various KH and Nimbus saddles. Nerve damage to the area around the sit bones or perineum, I could understand, but only if someone rode extraordinary distances day after day.

    Get on carefully, take a moment to adjust, ride.

    Leave a comment:


  • caseytronic
    replied
    I think your concept makes sense in some ways, but consider the following as well:

    - The saddle should be rigid enough handle twisting loads that a unicyclist puts on it with their hips to turn.

    - The saddle should probably be compatible with some kind of front handle as these are often used for control and many maneuvers

    - The current wave of saddles ( mentioned above) benefitted from a lot of development and experimentation with comfort and fit of the past 10 years. Some of the innovative saddle developments have been captured in the threads here on the forum (search for "saddle modification", or "flat saddle", or "custom saddle").

    Leave a comment:


  • caseytronic
    replied
    Since you don't sound from your posts like a uni rider yourself and I'm not sure if your friend is familiar with the specific saddles now available, I would recommend you specifically check out a couple of the current popular high quality flat-ish saddles for unicycles:

    Kris Holm KH One - a nearly flat saddle with center channel - fits similar to a bike saddle:
    http://krisholm.com/en/gear/saddle/fusion-one

    Nimbus Stadium saddle reviewed here on the forum (slightly less flat, but also quite comfortable). http://www.unicyclist.com/forums/sho...d.php?t=119460

    These saddles are both much more comfortable than the stock saddles that come on many unicycles. Their flatter shape and better firmer foam concentrates pressure on one's sit bones ( like a quality bicycle saddle). Both saddles can be purchased in the US at unicycle.com

    Also, it doesn't appear that a handlebar would work for the type of riding your friend is doing, but there are a couple of handlebar options that allow you to shift some of the weight onto your hands - good for distance riding and crotch comfort. Unicycle.com has these as well.

    Leave a comment:


  • andyvanb
    replied
    Good Replies

    Guys,

    Thanks for the info. Much food for thought. I will:

    1. Check with Bill on his seat curvature. He may simply be using an old "nut crusher" highly curved seat. That change in design over the years was new knowledge to me.

    2. I don't know much about Bill's personal geometry. I'm a bit uncomfortable asking about "size" or "enormity..." We are friends, so maybe I will broach that subject.

    3. As far as the doctor is concerned, a second opinion sounds like a good idea. The doc's a garden variety type as far as I know, not some godlike uni fiend. The issue Bill has does stop when he stops doing the uni. So there is some connection between the uni and his difficulties. The problem is in the testicle area not perineum I am told.

    4. bungeejoe, I'll connect with you PM as you suggest.

    5. With the possibility of the flat seats doing the job, I'm a little less interested in doing the project. Why re-invent something that might be solved? We are considering doing all this pro-bono and as we are (or at least I am) feeling kind of lazy here, why work at it? On the other hand, maybe we have the chance to make the next big leap in seat concept. Whoooaaa!

    I'm going to check into all this, and at the same time, maybe connect a little more with the mechanical engineer I am working with this on, Dave. Dave has one concept, and I have come up with another. Basically, together it would look like the bottom and back of the seat just the same as the very best modern seats. Meaning spots for the sitz bones, perineum groove, sides curve in and out, as today.

    The front is where we are thinking big differences would happen. Where guys nads live would be an opening. It would be big enough for most of us! The seat would curve outward to the left and right (fork) into padded rails on either side that would provide pressure between the uni and the person's groin (where leg meets pelvis). Kind of like the perineum groove but gone HUGE!

    The concept is that most of the time, the rider would rest on the sitz bones pads on the back of the seat as ideal today. That's where our bodies are adapted to sit (at least it seems so). Sometimes the rider also applies pressure to the middle of the seat.

    The front "rails" would then be rested on occasionally, as needed, with no force on the nads.

    What do you guys think of the concept?

    -Andy

    Leave a comment:

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