My new homemade lightweight shoes :)

Discuss light weight issues concerning road bikes & parts.
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prendrefeu
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Location: Los Feliz, Los Angeles, California
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by prendrefeu

Regardless of cleat location and if this is an old or newer F50, I am interested in how this project fares over time. Please keep us (collectively) updated.
Although not light in any way, I love the fit of my Copa Mondial and other Adidas shoes - so if this can work with an F50, surely it can work with other football shoes?

I'm sure others may follow suit with Diadoras, Nike, and maybe even a pair of Lottos.

...suddenly I want to spend the afternoon in a pickup game now.
Exp001 || Other projects in the works.

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knef
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Joined: Tue Jan 23, 2007 12:36 am
Location: Belgium

by knef

Nice project. Do the 7 layers really add stifness?

by Weenie


dereksmalls
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Location: New Zealand

by dereksmalls

Very interesting. Look forward to the updates

jamr1
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Joined: Fri Feb 26, 2010 8:03 am

by jamr1

prendrefeu wrote:Regardless of cleat location and if this is an old or newer F50, I am interested in how this project fares over time. Please keep us (collectively) updated.
Although not light in any way, I love the fit of my Copa Mondial and other Adidas shoes - so if this can work with an F50, surely it can work with other football shoes?


These started as soccer cleats not football shoes my fellow American....hehe

OP way to think out of the box.

megalightman
Posts: 21
Joined: Sun May 22, 2011 3:36 pm

by megalightman

Thanks for the comments guys.
I'll try and answer all your questions.

I have been using Mid Sole Cleats for for around 4-5 years now and I have been moving the cleats further and further back over the years until where they are now being the best position.
Technically they should go on your heal because that's where the power is coming from, but cycling like that would look and probably feel very silly.
I have raced and won races using my cleats like this, so it doesn't really affect my cycling in any way other than it feels a lot better and a lot more powerful.
As for toe overlap, its never really been an issue, you get used to it very quickly and its not like you're pedalling through dead turns all the time when you're on the bike anyway. Plus, smaller riders have managed to put up with overlap forever anyway, and they seem to be fine.
My only drawbacks to Mid Sole Cleats is that I have had to sell all my bikes and get smaller frames (I needed to drop my saddle height by around a few inches) and I couldn't use my shoes any more, hence the modifying of any shoes I could find.
So my 9 year old Trek 5200 was sold and so were both my Sidi Energys :(
I now use a Chinarello 47cm with a 160mm stem!

Stiffness.
These are VERY stiff and there is hardly any flex when I put them over my leg and push down on both sides.
Believe it or not, but actually these football boots were surprisingly stiff already, just the front part/toe was flexible.
My first attempt at football boots were a very flexible pair of Nike R9's and you could basically bend them in half, you can't do that with the F50's.
Those were a bit of a nightmare to do with all the studs in the road and trying to slap the carbon on around them. I picked them because they had the flat bit where my cleat would go.
Those are my every day winter training shoes at the moment, as they're a size bigger and my heated insoles fit in them nicely :) plus, having the laces means I haven't needed to tighten straps during a ride, a bit of a pain if you have overshoes on.
I can't remember how many layers went onto the R9's, but they are not flexible and I REALLY use huge gears up hill in training, and if there was going to be an issue with stiffness or carbon breaking, it would've happened a long time ago with those.


Buying the carbon etc...
Its just basic carbon (3k 2/2 Twill 195gsm) you should be able to buy locally, many starter kits should have more than enough to several soles.
I have learned that it is cheaper to buy thicker weave than build up several layers of thinner stuff.
For these, I used 7x 195g, so that's 1365g. I have just got some 650g carbon in the same weave and it was only a few pounds more expensive, which I don't really understand why!
It wouldn't make the sole thinner, just cheaper to do.
I am planning on using UD (Unidirectional) carbon on the next pair, as there is no need to worry about sidewards flex and so I should be able to use less, but I will still put a piece of 2/2 twill in top for looks.


Preparing the carbon to apply on the sole.
I have a flat piece of MDF and lay a strip of thin pallet wrap (PR) down (resin wont stick to that), then put a strip of carbon on that (smaller than the pallet wrap), brush on the resin, another piece of carbon, resin, carbon, resin etc... until all 7 were down, then what I'd do because I dont have any vacuum bagging equipment, was to put another piece of pallet wrap on top of that and then use a roller to force out any excess resin (you only want around 24% resin to carbon for strength). Not a great technique, but the best I can do with what I have.
When it is all squashed, you can quite easily get a pair of normal scissors and start trimming it a bit.
You don't want to go to mad trimming in case you mess it up, you can trim the rest after it has hardened with your drill.

All you do to apply is to peal off one side of the PR and then plonk it down on the sole.
Before I did that, I stuffed my shoe with socks and had some weights ready to put on top to help squash it together after I had wrapped the whole shoe with PR to keep everything in place.
I found that putting the shoe on a thick towel helped make sure it was even pressure all around.

When dry, you now have to cut the excess off which for me, was both side of the arch where the shoe curves in, and then a rub down with wet & dry before a clear coat to make it look better.
I could've spent ages making my soles flat and showroom like, but there is a limit to how much time Im prepared to waste on something that isn't too important, maybe on another pair though!

My other project Im doing right now is a nice pair of carbon mud guards for my road bike (I really needed them the last few days!), I hopefully will have them finished shortly :)

Oh, and I have just won another two pairs of F50's for less than what I paid for these, but for both! You've gotta love ebay sometimes :)
Last edited by megalightman on Tue Feb 26, 2013 9:59 pm, edited 1 time in total.

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HammerTime2
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by HammerTime2

jamr1 wrote:
prendrefeu wrote:Regardless of cleat location and if this is an old or newer F50, I am interested in how this project fares over time. Please keep us (collectively) updated.
Although not light in any way, I love the fit of my Copa Mondial and other Adidas shoes - so if this can work with an F50, surely it can work with other football shoes?


These started as soccer cleats not football shoes my fellow American....hehe
Well, my fellow, fellow American, Copa Mondial is for soccer, correct? Therefore it would appear that the American prendrefeu, recognizing he was on an International forum, used football as it is used by non-Americans, i.e., meaning soccer.

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Liggero
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Location: Netherlands

by Liggero

You can read in Steve Hogg's book how he had to fit a cleat in the heel of a cyclist who had an enormous leg length difference. Just in one leg.
Happy Trails !!!

tigoose
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Joined: Fri Nov 21, 2008 11:23 pm
Location: Mal Born, Oz.

by tigoose

to the op
any chance of a pic of your bike, it's dimensions and yours especially saddle height and yours with inseam?
regards

Schleckond
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Joined: Wed Jun 27, 2012 8:14 am

by Schleckond

Megalightman,

Don't want to badmouth how you are laying up the soles but i think you would get improvements by laying it directly onto the shoe - layer by layer (having already squeezed out as much excess resin as possible) and then applying pressure by wrapping electrical tape (sticky side up) all around the shoe. This should also leave you with less sanding to do later.

Using a hard slightly flexible piece of plastic (like a spatula) is a good way to remove excess resin. Also when wet laminating carbon it is better to push the resin into the carbon than brush it on (less chance of dry spots internally) if you know what i mean.

Also as you suggested uni-directional carbon fiber will yield a much better result and is easier to work with IME. Just remember to put a few layers at an angle to give some torsional stiffness.

Good project that shows potential. Keep working on it and you should have some slick looking unique boots.

bananasbrah
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Joined: Thu Jan 02, 2014 8:38 pm

by bananasbrah

This is a great thread. I'd like to try this with a pair of VIII Vapors, how necessary is the wraparound carbon on the shoe's upper? Do you think it'd be possible to preserve the looks somehow without leaving it too flexible and loose?
Image
Image

vectorbug
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Joined: Wed May 28, 2014 7:45 pm

by vectorbug

This is great. Thank you for sharing your process and photos. I've been extremely interested in learning how to work with carbon fiber recently. I'm starting with the cheaper Fiberglass first. I was following Adam Hansen's concept, but grafting a nice stiff carbon sole to a football or maybe even a track spike shoe sounds like a much simpler process since I don't really need/want fully custom soles like Hansen.

edit: sorry for kicking up a dusty old thread.

jcm1406
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Joined: Wed Jun 29, 2016 10:48 am

by jcm1406

How did you fix the cleats in position?

addictR1
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Joined: Sun Jun 10, 2012 1:11 am

by addictR1

Liggero wrote:midsole cleats it's quite popular in triathlon apparently.


Interesting. Is midsole clear suppose to help generate more power or smoother pedal stroke? Would love to hear more about it.

froze
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Joined: Thu Aug 05, 2010 3:47 am

by froze

You need to get those to market!

by Weenie


mile2424
Posts: 387
Joined: Sun Jan 04, 2009 3:22 am

by mile2424

Don't think you need the carbon wrapped around the toe? Look at Giro empire's? I have always wanted to do this to a pair of Nike Mercurial's like the above poster mentioned. That would be awesome!

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