eeksll wrote:Any one found any good informative reviews about the new Doc Blue sealant and how they compare to existing?
Doc Blue is rebadged Stans. Schwalbe have stated that in their press releases and it says produced by Stans or something similar to that on the bottle.
Well, well, well?
Well, I'm hoping I'm just unlucky. Haven't had much time on them yet, just a few short commutes, but they do roll very nicely. However, after riding through a section of roadworks with considerable debris I heard the sound of escaping air. Slowed to a stop and went to find the source but there was no chance of sealing this one. Here's a shot of it after fitting a $5 tyre boot and tube.
I'm hoping it was just a case of riding over the wrong bit of debris and not a sign of the tyres durability. The light scratches on the rim directly in line with the cut seam to be a good indication that the debris was not too friendly. Now I am contemplating the best way to repair the tyre if it is possible. I should note that compared to getting a similar cut on a tubed tyre in the past, which resulted in an instant flat tyre, the tubeless tyre with sealant may not have prevented the flat but it did slow the deflation enough for me to have time to safely pull of the road, stop and dismount before becoming too flat to ride on.
So I didn't get a chance for any real test ride which is quite a disappointment as my only real review of any value would be to the fitting process. The tyres where fitted to American Classic Argent rims and since I had it handy I went straight for the compressed air rather than bothering with a track pump. First part of the process and it was time to try out the Easy Fit supplied with the kit. Easy Fit seams like a bottle of soap suds with an applicator similar to scuff stuff shoe polish. No major breakthrough compared to using soapy water but it is convenient and mess free. It also evaporates away more quickly than when I've used a soapy water mix but that could just be because the more controlled application means there's less there in the first place. In any case it does the job it's supposed to and because so little is used there will be enough in the bottle to last for many sets of tyres.
The tyre goes onto the rim much easier than the Fusion 3s did. Even refitting the used and stretched Fusion 3 after the sidewall cut incident proved significantly more difficult at fitting than the brand new Ultremo had.
Inflating the tyre and as expected with the compressed air their is no issue gaining a seal and quickly coming up to pressure. However the distinctive sound of the bead popping into place is absent and even as the pressure climbs well above where this should occur and the maximum recommended pressure before I decide it's not going to happen. The bead appears even and properly seated the whole way round the tyre though. Letting all the pressure out and the sound of it popping back of the bead is apparent as the last bit of air comes out. I add the sealant and inflate again. This time more slowly and note a very quiet quiet pop of the tyre bead popping over the last bit of the bead barb on the rim. No wonder I hadn't heard it before. While a GP4000 and a Fusion 3 produce notably different sounds to each other when popping into place they are both reasonably loud while the Ultremo struggles to be heard over the air rushing from my tank to fill the tyre.