The front doesn't. The back does. It's in the blog post.AFAIK, the standard rims do not have ‘the hump’.
Hi Gerhard,Many thanks mates!
So my understanding:
On rear Outex is possible with the Honda rim and TL tires.
On front it would be better/saver to respoke to a rim with a hump and use Outex than - as well together with TL tires.
it seems that it's hit and miss for some folks on the outex. I'm on my 3rd front tire, and the front tape is a bit beat up from my tubes getting twisted and mangled, otherwise holding air great.Outex did work for me in the back. Front was leaking air. Had to re-do front with 3M Extreme sealing tape 4411. Works great! Better that Outex.
Thanks for your reply. True that the valve stem would likely move quite quickly and then let all the air out. Perhaps some type of sleeve around the valve stem or even a little circle of silicone around it to try keeping some air in?It seems to me that the weak spot would be the valve stem. If the tube is punctured the fit of the stem will be the only thing to maybe keep the air in.
I am right now doing the 3M route, have the rear done but not aired up yet.
Thanks Greg. ****, I love your setup, bike looks great.no issues running outex and tube. I did it as I bought a TT tire, not a TL tire.
I ran the OEM dunlops with the outex for 3500km with no issues. Tube in front, no tube in the back.
I"ve had two flats on one trip, with a front tube/outex combo.
On the 1st flat the tube went flat, but tire held enough air to coax it to a stop 5k later.
I re-inflated the tire, and continued for the rest of the day. It held fine.
Upon inspection it seemed the tube rubbed on the inside of the tire and lost air. It wasn't a puncture.
The 2nd flat was my mistake, as I didn't inflate the tube while putting it in the rim, and had twisted it. On hard braking the tube popped, and it was basically un rideable.
It's hit and miss with the valve stem..I've since gone full tubeless with tubeless tires. I've fitted a TPMS for extra piece of mind.
See the quoted section in my post 16 above, gives a full explanation. Basically, the tire won't go flat in a second, the tire will remain on the rim and if needed you can plug the tire and still ride enough to do a full repair later on. Many people say that a tubeless 21 inch tire is no good, being too narrow and not having the bead guard on the rim, meaning that even with outex, the tire might not hold the bead enough to keep the air in. A large bump in the road could make the tire "burp" air out. Unless you get a set of the alpine rims that have the bead guard.So, I’m not understanding the advantage of the combination outer ant tube up front. Why not just retain the normal tube up front with no sealant and switch to a sealed fully tubeless config in the rear?