DIY Tubeless Goo For Mountain Bike Tyres
I was out in the shed looking at putting new tyres on my Turner 5 Spot the other day, as I am getting sick of the number of sidewall rips I have been getting using the 2-Bliss Specialized Eskar and Specialized Purgatory tyres. For trail riding these tyres have a good amount of grip for a reasonably light and fast rolling tyre, but the sidewalls are pretty thin. The trails on the Port Hills of Christchurch tend to have many volcanic rocks sticking up out of the trail, and I must be ripping the sidewalls of my tyres on these as I go over/past the rocks. I picked up a pair of Intense 909 Ex Lites recently, and I am looking forward to trying them out on my bike. The tread pattern looks good and aggressive and the sidewalls are definitely thicker than the Specialized 2-Bliss tyres (2-Bliss = Specialized tyre designed to be run tubeless, but with sealant type goo).
I will be running the Intense 909’s tubeless with sealant goo, as I have found the tubeless system works very well for me. The occasional puncture I get is sealed up as I am riding along and so I can generally run a tyre for 6 to 9 months (i.e. until I wear it out) without ever having to do anything more than put a bit of air into it.
I have seen other people have problems running tubeless tyres and I have come to the conclusion that there are specific tyre – rim combinations that work well for tubeless, and others that do not. Basically if a tyre/rim combo mean that the tyre is super easy to take off by hand when the tyre is deflated, then I would suggest you are likely to have problems with burping tyres while out riding. Burping a front tyre is not a good thing!!
Because it often ends up looking something like this!!
Anyway, I think the benefits far outweigh the downsides, as long as you have a good tyre/rim combo! The DT Swiss 5.1d’s that I am running seem to be super tight with any tyre so that is a great start! Having added the DT swiss tubeless conversion rim strip to the rim has made fitting tyres even tighter. I can usually get most tyres on and off most rims without tyre levers, but for these rims I have had to resort to tyre levers every time!
Looking on the shelf in the shed I found that I was out of tyre sealant goo. Being resourceful (or is it just that I have deep pockets and short arms??) I decided I would make a batch of my own tyre sealant. This is something I have tried before and that I have seen various recipes for on the internet. In the shops you are looking at about $60 for a litre of the Stans or equivilent goo . The recipe I am making costs me more like $15 a Litre, and appears to work as well as the bought stuff in the tyres I have used it in.
As there was a minimum order of 1 Litre of one of the ingredients I will have enough to make about 5 litres of goo! Should keep me going for a while!!
Recipe for tubeless tyre goo can be found by reading through this thread here. http://forums.mtbr.com/showthread.php?t=406115
1 part Liquid Latex
1 part Propylene Glycol
1 Part Slime (commercial car/truck tyre sealant)
2 Parts Water
I will post up what I think of the 909’s once I have done a bit of riding on them.