337 replies to this topic

[JohnnyAirtime Get Help Now]

KSchwantz said:

You know,  as you come off a 4th or 5th gear jump.  The wheels spin,  and while you and the bike are in the air,  at that time you can feel the weight of the rimlock causing an offbalance effect.

Thank you sir...  I'd have to say, I must not be that "in tune" with my bike... I've never felt anything out of the ordinary, unless the wheel isn't true and I'm hookin' up on the asphalt. Other than that, and all the air I've ever caught with a tubliss or other mounted up... can't say that I noticed.

[KSchwantz TT Member]

Maybe I got a square wheel?  Sometimes I don't notice, Sometimes the suspension hides it, but sometimes I'll notice.  Haven't bothered to fix it though, too lazy.

[dakynz TT Gold Member]

I've been running the Tubliss system for around 800 miles now. All have been in desert conditions except for roughly 150 miles which were mountain riding with rocks, stumps, roots, mud etc..

I run the rear 18" tubliss at 7-8 lbs and the 21" at 12-13 lbs. The rear tire is a Dunlop 739 A/T Desert and could honestly be run completely flat. The front is a Pirelli scorpion pro mid-hard

So far I have gotten 1 flat which was fixed with slime. It continued to have a slow leak and decided to patch it using plugs. Fixed and good as new within 15 minutes.

I have to say that I am completely sold. I used to run heavy duty tubes, slime and hard compound tires and would regularly get flats from the mesquite thorns. Now even when the thorns go into the tire they are sealed and do not cause further damage.

As far as how the tubliss rides. There is less rotating weight which increases acceleration and also helps to slow down at a faster rate. The thing I really was impressed with is how it feels in the air. The bike seems lighter in the air and noticed this the first time I took it through a whoop section. Seemed to travel further in the air when running a rhythm section. Turning took some getting used to as the bike really wants to cut, due to less rotational weight (less gyro effect).

Lastly, when you do get a flat with the tubliss the plug option is soooo much faster. Simply insert the plug, make sure the rubber cement is completely dry and then off to riding again.

[Sundog Get Help Now]

dakynz said:

Lastly, when you do get a flat with the tubliss the plug option is soooo much faster. Simply insert the plug, make sure the rubber cement is completely dry and then off to riding again.

So how does the plug hold if you are running slime in the tires?

[dakynz TT Gold Member]

Sundog said:

So how does the plug hold if you are running slime in the tires?

I cleaned the area first with water and let it dry. Deflated the tire all the way. Then inserted the plug doubled over along with rubber cement, lots of it. Let that dry fully and then pumped it up. Cut the excess of the plug off, roughly 1/2" sticking out of the tire

Holds because you prep the area first and then use rubber cement. The plug doubled over will barely fit into the hole. Same way you plug ATV tires.


Total time for fix was 15 minutes with drying time. The best part over half that time I was drinking a beer and watching tv while it dried.

[Chas_M TT Addict]

On a previous ride, my Tubliss front tire developed a puncture leak with 'slime' oozing through the puncture.  Roughing up the puncture with the file-like auger tool and plugging the hole provided a permanent fix.  The 'slime' did not interfere with the repair.  Trail-side flat repairs in less than 10 minutes......'will wonders never cease?'.

[Sundog Get Help Now]

dakynz said:

I cleaned the area first with water and let it dry. Deflated the tire all the way. Then inserted the plug doubled over along with rubber cement, lots of it. Let that dry fully and then pumped it up. Cut the excess of the plug off, roughly 1/2" sticking out of the tire

Holds because you prep the area first and then use rubber cement. The plug doubled over will barely fit into the hole. Same way you plug ATV tires.


Total time for fix was 15 minutes with drying time. The best part over half that time I was drinking a beer and watching tv while it dried.

Chas_M said:

On a previous ride, my Tubliss front tire developed a puncture leak with 'slime' oozing through the puncture.  Roughing up the puncture with the file-like auger tool and plugging the hole provided a permanent fix.  The 'slime' did not interfere with the repair.  Trail-side flat repairs in less than 10 minutes......'will wonders never cease?'.

Thanks for the info!!

[dakynz TT Gold Member]

ran an enduro this weekend in cloudcroft. Tons of rocks at high speed.

Ran 13 lbs psi front and 9 lbs rear. Ran great and no issues with the rocks

[505Fire TT Silver Member]

Just picked up a 21" front!  Been running the 19" rear and it works great.  I pinch flatted the front tire twice my last race with UHD tubes.  No more pinch flats with the tubliss!!!

[BRZ TT Member]

I've been running both the 21" front and the 19" rear mostly at the MX track.

I really like not having to worry about flats and traction also improved as it allowed me to run lower tire pressures.

[KSchwantz TT Member]

We're using front and rear Tubliss kits for the Parker 250 next weekend.  Added some Stan's Tire Sealant for good measure.

Will see how it goes.

[rosscoact TT Newbie]

Has anyone tried these for desert touring on mid-size trailies?

I'm setting up the 690e for a 2600km all desert trip and only hit two very small aboriginal communities in over 2000k.  It's hard enough to get fuel, and forget about help.

Seeing we will need to carry 60l fuel and 20l water there isn't much room for anything else so eliminating flats could be the difference between getting out and spending the rest of my few remaining days waiting for assistance.

This is absolute unquestioning reliance, would you have confidence?

I've completely buggered a few tubes in my day too

[KSchwantz TT Member]

Quote

Has anyone tried these for desert touring on mid-size trailies?

I'm setting up the 690e for a 2600km all desert trip and only hit two very small aboriginal communities in over 2000k. It's hard enough to get fuel, and forget about help.

Seeing we will need to carry 60l fuel and 20l water there isn't much room for anything else so eliminating flats could be the difference between getting out and spending the rest of my few remaining days waiting for assistance.

This is absolute unquestioning reliance, would you have confidence?

For me the Tubliss worked very very well in the Parker 250.  However your application is a bit different.

With that in mind perhaps I should just mention possible weaknesses of the Tubliss stuff.

1.  its essentially a bicycle tire stuck inside your rim.  if the bicycle tube goes titts up, you're hosed. have spares.  Bicycle tubes also tend to loose pressure over the short term so have a bicycle pump handy.  I squirted Stans tire sealant inside the bicycle tube itself and that help a lot.  I believe the leakage was from the stem valve, but at any rate with the sealant it held the pressure for a week.

2.  Its possible if you bash you rim sqaure enough it could cause the seal to break.  I don't know how much it would take, and I guess on a trip like you're talking you'd want to ride conservatively so maybe this isn't even an issue.

That's about it I guess.  nothing is full proof, and I guess if you brought some back up bicycle inner tubes for the tubliss core, you'd be set.

I have to say I hit some rocks during that race in Parker.  Of all the gizmos I used for my race setup running those tires tubliss was the best decision.  They far exceeded my expectations.

Maybe buy one and try it on a lesser ride and then decide what luck you have and if its trustworthy for your intended purpose?

Regards

KSchwantz

[Jim813 TT Silver Member]

KSchwantz said:

You know,  as you come off a 4th or 5th gear jump.  The wheels spin,  and while you and the bike are in the air,  at that time you can feel the weight of the rimlock causing an offbalance effect.

I have to say I experienced the same thing after trying the tuliss system for the first time( in the rear tire only). The first time I ever tried the rear tubliss was last Friday at a motocross track. In the air, something felt off in the back of the bike. I first pulled off to see if the tire was flat or if anything was loose, but everything was in check. Everything was fine the last time I rode ( three days earlier), so the only thing I could come up with was a balance issue. I've gotten more used to it, and only experience it when I'm in the air. It seems like the "unbalanced" feeling is magnified when I hit the throttle in the air. I've only heard of the same problem from one other person, the person I quoted above.

The only other issue I experienced was that my compressor would only inflate the high pressure inner tube to 88psi. Would a cheap manual bicycle pump from wal-mart work to get the inner tube to 110psi?

[JohnnyAirtime Get Help Now]

jim513 said:

......................
The only other issue I experienced was that my compressor would only inflate the high pressure inner tube to 88psi. Would a cheap manual bicycle pump from wal-mart work to get the inner tube to 110psi?

I use the Co2 inflator(s), as one Co2 will bring it to 110 after airing it up with a compressor.  I use the second-wind reguarly

[KSchwantz TT Member]

Quote

I have to say I experienced the same thing after trying the tuliss system for the first time( in the rear tire only). The first time I ever tried the rear tubliss was last Friday at a motocross track. In the air, something felt off in the back of the bike. I first pulled off to see if the tire was flat or if anything was loose, but everything was in check. Everything was fine the last time I rode ( three days earlier), so the only thing I could come up with was a balance issue. I've gotten more used to it, and only experience it when I'm in the air. It seems like the "unbalanced" feeling is magnified when I hit the throttle in the air. I've only heard of the same problem from one other person, the person I quoted above.

The only other issue I experienced was that my compressor would only inflate the high pressure inner tube to 88psi. Would a cheap manual bicycle pump from wal-mart work to get the inner tube to 110psi?  

This is the pump I use.  
http://www.amazon.co...w/dp/B00165Q4XK

It does the bidness pretty good.

I ended up using a couple ounces of wheel weights on my wheels for the Parker 250 because when I had the wheels off and would spin them, the Tubliss stem/rimlock always ended up at 6 Oclock.    

The wheel weights fixed this and all was smooth until I turned my wheels from circles to octagons in that race!

[Chas_M TT Addict]

jim513 said:

I have to say I experienced the same thing after trying the tuliss system for the first time( in the rear tire only). The first time I ever tried the rear tubliss was last Friday at a motocross track. In the air, something felt off in the back of the bike. I first pulled off to see if the tire was flat or if anything was loose, but everything was in check. Everything was fine the last time I rode ( three days earlier), so the only thing I could come up with was a balance issue. I've gotten more used to it, and only experience it when I'm in the air. It seems like the "unbalanced" feeling is magnified when I hit the throttle in the air. I've only heard of the same problem from one other person, the person I quoted above.

The only other issue I experienced was that my compressor would only inflate the high pressure inner tube to 88psi. Would a cheap manual bicycle pump from wal-mart work to get the inner tube to 110psi?

Tubliss wheels require balancing just like any wheel with a single rim lock.  My Tubliss tires are always 3 - 4 oz out of balance.

A small high pressure bicycle pump works fine for the Tubliss tube.

[spud_DB TT Member]

Once these things are fitted - how quickly can tyres be changed? I need to be able to change a front and rear tyre in my 10 mins work time. It can be done with bib mooses,  but I am concerned about the TuBliss system as it requires some inflation...

[KSchwantz TT Member]

its like changing the tires minus the tubes, since that stays in.  Timewise I don't know I'm slow cause I don't enjoy messing with it tires.

[Flynall TT Gold Member]

Changing tires with the Tubeless system is easier and faster than with tubes. It is a little different, so there is  learning curve, but once you've done a couple of times, it is so much easier!

RH