Second that - get an inner tube and it won't leak again.
Thanks for the responses, obviously fitting an inner tube is the best answer. Does anyone know where to get them in NL or do I have to order them on line? But if anyone knows of a quick fix some of us might still be interested.
Thanks for the tip Tony, just ordered the tubes.
I took delivery of the tubes last tuesday. Fitted them this evening, an easy job for a dutch boy used to fixing his own bicycle tyres. Took some pics to show how easy it is. Here's the wheel in its initial state, make sure is is supported on a flat surface that will prevent damage to the rim.
Spray some glass cleaner to make the rim as slippery as possible, soapy water works fine aswell
Use a pair of pliers to rip out the valve
Probably you won't rip out the whole valve, but don't worry as long as the air can get out you're fine. The valve is destroyed but you won't need it anymore, the tube has its own valve. You can remove what's left of the valve in the rim later.
Now the air can move freely out of the tyre, it's time to break the bead. This means unseating the tyre from the rim. You do this by applying downwards pressure on the sidewall of the tyre as close to the rim as you can. Put both knees on the tyre and use your thumbs to push down as hard as you can.
If things get tough this is a quick way to break the bead http:/
The first tyre went off easier than the second, so enter the wedge which I could put very close to the rim and lean on, which did the trick. If this fails, the link in the previous post shows a method that wil work any time.
And off it is!
Trim off what's left of the valve on the outside of the rim so you can pull the rest out from the inside.
The tube, ready to be fitted
The tube inside the formerly tubeless tyre. This view of the rim shows that once you get the tyre to budge it'll slip off quite easily.
Again slap on some glass cleaner or soapy water to make the rim slippery so that the pressure inside the tube can push the tyre back into place again.
Pump the tube until the tyre is seated properly on the rim again, you will probably have to release pressure to get it down to the proper level.
And presto! Two Catrax wheels that hopefully won't let me down in the near future. But at less than €30 including postage and all in all less than two hours work to pull the cattrax apart an reassemble it I think I can't go wrong. Thanks everyone for your input, especially Tony for your link to http://www.buggywielen.nl , very helpful people at that shop.
If things get tough this is a quick way to break the bead http:/
I change my own trailer tires this way too - I've found another way to break the bead - sometimes very stubborn on smaller tires. Take a car ramp, the type that you drive your car on to work underneath, and place the vertical edge on the sidewall of the tire/wheel (as the tire lays flat on the ground). Drive you car up the ramp until the bead lets go. Voila!
steel on rubber will break the bead with a car's weight behind it on a short ramp
another way is with softer material and a longer ramp. like a 6foot length of hardwood 2x4, or softwood 2x6. lay on tyre and then slowly drive up wood until weight of car breaks the bead
another way is with softer material and a longer ramp. like a 6foot length of hardwood 2x4, or softwood 2x6. lay on tyre and then slowly drive up wood until weight of car breaks the bead
Never broke or tore a bead this way...but then again, I didn't care since I was changing the tire.