Wolf ToothB-RAD Adult Unisex Bottle Cage Accessory

It's pricey for what it is but looked for other alternatives, nada. Would buy again.

I bought the original size strap. I mounted it on my road bike under/behind the water bottle on the down tube, using a Wolf Tooth B-Rad 3. The strap easily held 2 700x23c tubes and two tire levers. It could have held two more tubes, probably. Capacity and security were great for what I intended to do with it. HOWEVER, I have decided not to use it because the result is UGLY. I ended up getting the smallest saddle bag I could fit 2 tubes into (plus all my other stuff). Much neater - of course - as any mess is hidden from view. I was just trying to avoid a saddle bag.If you are not too concerned with what it looks like with all your stuff strapped into it, or are more willing than me to mess around with it until it is all symmetrical, then I wholeheartedly recommend this item. Your stuff will stay exactly where you put it.

I directly mounted to my mountain bike and it's working great for me

Really great device. I purchased the medium size one. I attached it to my B-RAD system and use it to hold a spare tube (one tube only - I think two tubes would be too much). I like this a lot better than taping it on as I think it does less damage. holds a MTB tube perfectly. Could hold gloves, repair kit, etc. Probably a bit too small (and here I am referring to the size medium) to hold a jacket.

I have a "tool bottle" that was occupying a bottle cage inside the frame triangle. This mount allowed me to take advantage of the bosses on the down tube near the bottom bracket and strap this bottle in place. There's a foam chunk on the Velcro strap that prevents sliding and provides better tension against the mounted item.

I use this yo hold a spare tube on my bike.

The strap itself is too narrow. It can hold a tube but if you try to tuck something inside, it won't stay. This is unfortunate because Wolf Tooth does make a wider and grippier strap that can easily hold a tube with Co2 and a tire lever tucked inside. The mounting system is secure but takes of up a water bottle spot (of course) and is heavy. Less obvious is that it adds considerably more height than strapping directly to the frame.

Better than a seat bag! Which would sometimes catch on bibs and rip a hole. Not good.