Bob Dopolina 

I have been testing some tubular wheels of late and have gotten annoyed at having to lash a spare tubular to my seat rails with and old Christophe toe strap.

I looked around for a Tubular bag, found a few but they just didn't cut the mustard as far as I was concerned. The Tufo one was probably the closest to what I was looking for but it is HUGE with a capitol HUGE.

I am thinking about developing one here for sale on my website (plug).

Before I go and squander more time and precious resources what would you all find to be useful features in a tubular bag?

My thoughts, thus far, are:

1. It should be small and hold 1 spare tubular (Maybe CO2 as well but not 2 tires and a pump).

2. There should be a small side pocket for keys, some ID and a few bucks for ice-cream.

3. It should attach both under the rails and onto the seatpost so the darn thing doesn't flop around when you are climbing or sprinting.

4. It should be not be festooned with logos and come in day-glow colours.

5. Maybe a small strap or some way to attach a blinky light?

Your input would be much appreciated as it is you lot that I feel would be the typical end users.

That is all.

BTW, I have coloured brake hoods now.

Soil_Sampler

almost no way around it, can't shrink the tires.

Bob Dopolina 

^^^ yes, that's how I do it now. I'm talking about this bag. TWO tires and a pump? Overkill, non?

I'm thinking slimmer, much slimmer.

Grasschopper

It sounds like you've got it licked. I bought the biketiresdirect.com tubular bag which I assume is the same or super similar to the Tufo bag and it is WAY WAY too big. I have a spare tubular, 2 COs carts, my CO2/minpump combo, small multi tool in there and there is a TON more space...I bet you could fit 2 spare tubulars in there (and maybe that is their plan), but even then it is too long. You make something and I will buy one for sure.

Soil_Sampler

that is a monster.
I thought they made a single?

* Big enough to carry a spare tire, basic tools and sealant.
* Main pocket and two side pockets.
* Volume: 1.2 L, weight: 57g

Bob Dopolina 

Yes, this seems like a branded Jannd bag. Great quality but you could smuggle 2 small Chinese children in it.

Soil_Sampler

one shape I have not seen is a round bag with the tire rolled up in it like a cinnamon roll.

04jtb

Sounds like you have it spot on in the OP

Bob Dopolina 

Interesting thought but I think it would be pretty wide. I'm pretty sure people I would hit it with the backs of their legs.

Soil_Sampler

no. tucked between the rails from top to bottom, not sideways.

dgasmd

Dude, this is a project I've had in mind for months now. I already have the entire thing laid out in my head, but the only thing that has stopped me from making it is the fact that I have no experience working with carbon fiber. It is what I would use to shape it the way I want it. The main problem I have with bags is that they are huge, cannot be positioned as I would want them, and do get wet inside when it rains. I ride very early in the morning when all the sprinkles around town are on, so the roads are wet all over. Throwing water and mud tot he tire's glue section ruins the glue job very quickly making it worthless when you do need it. I personally don't care much about fitting most of the things you mentioned, but it can easily be done. Send me a PM if you are interested and I'll explain to you what I have in mind. Maybe I can get to test them for you if I get to keep them

sounddevisor

If you're going to have it attach to the seatpost, I suggest doing it in such a way that the strap doesn't have exposed velcro that hits your inner thighs. I've pretty much given up on seat bags because they always end up fuzzing up the Lycra of my shorts, and eventually wearing a hole through them.

Maybe a long enough strap to wrap around the post and overlap onto the bag by a few inches, with maybe two inches of the (hook-side) velcro at the end of the strap, and the (loop-side) patch of velcro set back along the side of the bag?

Bob Dopolina 

Good point. I have the same problem.

Bob Dopolina 

hadn't thought of carbon. It would make for one expensive bag.

Maybe the deluxe model?

dgasmd

Not really. This would actually come out much cheaper than cloth material. Very easy to make once a mold is done, which is very very easy to make for what I have seen on the net at least. What I have in mind would be very easy to mount, easy to carry, easy to put a single tubular tire folded, no issues with velcro (it almost ruined 3 of my assos shorts before I realized it), and much easier to match the bike/components/kits as it can be painted easily in any way YOU want it.

patentcad

You've actually done this, haven't you Bob?

Bop Gun

one of the guys I know cuts the top off of a water bottle. He stuffs the tire inside the bottle and places it in the water bottle cage. Simple, clean, and elegant. The only problem with this is that you are short one water bottle.

I ride tubular tires exclusively. I carry two cans of compressed latex and I don't carry a spare. This will get you out of most any situation. To me it beats having to carry a spare tire.

botto 

send some kit my way, and you'll be spared from shilling personally in the future.

it worked for BD.

marengo

https://www.wallbike.com/berthoud/sewuptirebag.html

logdrum

Where can we get compressed latex? What if your tubulars tubes are not made of latex (Continentals ) will this compressed latex still work?

Anyway, I do carry a spare but a 19mm one and not a training tire like a Sprinter Giro or a Vittoria Rally. Good Lord, those tires should be used for tractors. Why a skinny tire? because I can fold it to a smaller package and can go in a small seat bag. You also have to fold them the right way!

Crappy pics from my rudimentary phone!

Here it is folded:



On the way in (REALLY BAD PIC)




And look the 45 cu in performance wedge bag is not even that full. I can still add a couple c02 cartridges.



BTW -- I have used this tire a couple times already. One time I rode 86 miles home. The folding hurt it none. I unfold once in a while. Stretch it out and fill it with air every month, make sure the sealant has not dried out.

Those bags from tufo et al look like oversized tighty whiteys! Mine is also cheap $5 from Performance local store.

Later!

logdrum

However, I am one of those Freds that now use a small Hydrapack. The equivalnet of 2 water bottles, Rain gear, multi-tool, tubular tire and C02, plus food etc!

I roate around 2 road bikes, Fixie and MTB for weekends with kids. Easier than moving the wedge all around. I only use the wedge for OCP rides!

Bob Dopolina 

That's a beautiful bag but a little to retro for what I'm after.

Bob Dopolina 

That's definitely the old school way of folding a tubular. It's almost a lost art!

The problem for me, and I imagine others, is that the back of my legs rub on the front of the bag.

We all know what that leads too...

Bob Dopolina 

C'mon, I've raised the bar here. Not only am I shilling, I'm doing market research AND product development all in one post!

The thing is, unlike many sellers, I'm actually and end user as well. I'm trying to develop something I would buy.

I look at it as a public service. I'm just trying to make the world a better place.

Bob Dopolina 

OK. I've thought about it and now I'm curious.

Email me here: timothy@bdopcycling.com and we can talk about it.