Lightest Motocross Tubes Ever?

As mentioned beforehand there are "Patch-Kits" for these tubes. Tubolito offers its own kit for like 5$ for their bicycle tubes. They come with small and also larger patches which should big enough if you should have to repair a "snakebite" on these MX tubes.

That’s impressive! Is it the same material as the tubolito, just thicker? Is the design of seams the same?

Lookin forward to your opinion on them in a few months. 

Yes - they are made by Tubolito and the material is obviously slightly thicker than on bicycle tubes. I already mounted a front innertube...i will try them out as soon as possible. I don't see why they should fail. As shown the material is super-durable and much more resistant than your regular butyl innertube....just like 4 times lighter than a lightweight MX tube...and about 1 Kilo / 2lbs lighter than a heavy-duty front / almost 3 lbs lighter than a heavy-duty rear tube!

Both tubes were delivered today.  I don't have time to really do anything yet, but they are LIGHT that is for sure...and I run bibs on my bikes, so I'm not even sure when/if I'll ever use them (Maybe toss them in my pack for long rides as a back up in case the bib gets destroyed or something...the won't add much weight)...but I got them just over a month after ordering them.

No, I don't own, a stark, and I don't have one on order.

Or if anyone wants a set and doesn’t want to wait a month and a half…I’ll sell them.  $100 each….plus shipping.  18 inch rear and 21 inch front….you can have them as soon as Saturday… 

Just a little update:

i have now 3 rides under my belt using these innertubes and so far no problems. The valves are red colour so it's easy to see who mounts such tubes...

Installation was easy, they are still thicker than the bicycle tubes i mentioned before so they aren't finicky to install as i thought they would be. I also went to our local bike-shop to get some Tubolito Patch-kits...just in case. They are like 5$/pc so no real investment.

I still use the same tire pressure as i always did (0,8-0,9 bar/ 12-13 psi)

So far ALL thumbs up !!

 Tubolito Patch-kit for eventual repair

Do you notice a difference in the gyro weight is it worth the money?

Hard to tell since i'm actually using them paired to some tires i usually never-ever would use. Usually i'm using Pirelli MX32s front & rear almost all year long but on my "do-it-all" practice bike i just tried some intermediate tires since lately i'm practicing on hardpack terrain only. I just though i'd give other tires a try instead of wasting my Pirellis...however the added weight of both the front Dunlop MX53 and expecially the rear Bridgestone X31 are neglecting any weight-advantage of those tubes. Still i wanted to use the tubes in practice before i will convert my racebikes to those tubes.

The front Dunlop MX53 weighs 500g more....the rear Bridgestone X31 doesn't offer the grip a Pirelli MX32 has, nor is it more durable BUT it weighs a hefty 900g more!! So while the innertubes saved like 600g over my previously used Fatbike innertubes the tires overall still added over 1 Kilo...

I will now convert my racebikes with these innertubes and paired to the Pirellis rest assured you feel the difference of lighter wheels!

I am also using lightweight MTB tubeless rimtape, lightweight chainrings, titanium bolts on rotors and chainrings, lightweight brake discs, lightweight drive chain (i'm actually using a Trials chain which is 300g lighter than your typical 520 MX chain) etcetc...that's all moving parts & unsuspended mass!

I used them in an endurance race.  175 miles and no problems.  I nailed a few rocks with the front tire at 12psi and was impressed w/ no punctures.  Big thumbs up for me.  I used 19" tubes in my 18" wheel no problem.  I consider these a big advantage in unsprung weight.  Stoked!

I've used them through a couple sets of tires now too. Work well. Only issue is the metal portion of the valve stem will spin inside the poly portion of the valve stem. When tightening the valve stem cap it only gets so tight and then the metal portion starts spinning. Have not had an issues with leakage at the valve stem but to me this is defective in design, I should I be able to fully tighten the valve stem cap like a normal tube.

Brian please, technology doesn't always move at 100mph, look at the Stark for instance.

It's been the same bike for 2 1/2 years, didn't even get BNG.

Will there be a new model every few years?

If you're after BNG, support the advertisers on this site!

Bit of a resurrection...anyone using these? Any feedback? Are people still hesitant based of personal doubt?

There's nothing passive about my negativity.

Curious as well before I order some! Any durability issues with these? 

I have had some now for some time, work great, no issues and seem to hold air over time better than the usual tubes. I run around 11-13psi, weight loss is a great benefit too. Will never use regular tubes ever again

I didn't have any issues with mine but I replaced them with UHD tubes after a few rides.  I ride a lot of rocky trails and didn't want to risk a flat.  Will be interested in a Gen 2 version.  Maybe the future Enduro bike?

A lighter tire not only affects the rotating mass but also the unsprung weight, and since the tire has the greatest effect on the unsprung weight, this is the simplest way to reduce the unsprung weight.

Or as the article in motocross action indicates! When you put your bike on a weight-reduction plan, it is important that you remember the 6-to-1 rule. It is said that a 1-pound reduction in unsprung weight is equal to a 6-pound reduction in sprung weight. Thus, if you’re going to spend money on lightweight hardware, concentrate on unsprung weight.

https://motocrossactionmag.com/dealing-with-the-hidden-evils-of-unsprun…

I have to say I'm not a huge fan of these tubes, durability has been a big problem for myself and most of the guys I ride with that have Vargs.  I ended up replacing mine pretty early on with a standard tube.

Especially for off road guys that still run tubes, absolutely a no brainer to carry them, take up very little space, light AF. I just haven't experienced negative stuff at all w/them. Been using them since they were available for BMX/MTB too.

They are useless, check out the Stark pages on Facebook, not many people have anything good to say about them. I put latex tyre sealant in mine before the first ride which kept them inflated for that ride (at 14psi), but I noticed they were flat in the shed a couple of days later. Found 2 pinholes in the front tube and 1 in the rear tube.

Because they are so light and compact, I’ve been throwing mine in my pack for longer trail riders in case of an emergency…I’m a bib guy, so chances of me needing them are slim, but they are light and compact enough that I don’t mind having them along…

I got 2 rides or so on the rear before I cracked my scoop sidewall from having it go flat. So I lost the tube and a tire lol. Back to heavy duty for me. 

My Stark poped the front tube after the 1st ride. 17 hours later the rear tube is still good.

The wheels are like what goes on a KTM....so yeah, the spokes get real loose, real fast. That was the problem and likely the problem everyone else was having with these. The holes were always on the inside from the spokes getting loose and puncturing them.

Checking the weight of the front tube. Its .3lbs vs vs 1.1lb for the rubber tube. Insane difference.