Posted on January 6, 2012 by bec
Q: What is the outside and inside dimensions of the No Tubes Alpha please? I need a wider-than-open-pro 28h rim.
A: I just measured some rims for you:
Inside/outside widths
Mavic Open Pro 14.5mm / 19.7mm
NoTubes Alpha 340 17.1mm / 20.2mm
Velocity A23 17.8mm / 22.7mm
This post was posted in knowledge base and was tagged with road, Velocity, A23, NoTubes, Mavic open pro, Alpha, measured
Posted on October 5, 2011 by jon
Just a quick post about converting the popular Velocity A23 rims to run them tubeless for cyclocross or road since we've been experimenting today. The A23 has a smooth curved inside wall and converts pretty easily to tubeless with the correct products. All products mentioned below are available in our shop.
Cyclocross tyres
We fitted a Hutchinson Piranha (tubeless ready) with just the NoTubes yellow tape and a 44mm Universal valve stem. The tyre was pretty tight and needed careful use (not damaging the yellow tape) of tyre levers to get the tyre on. It inlated immediately using a standard track pump.
Then we tried a standard Maxxis Raze 700x33C. It went on very easily, too easily in fact with just the yellow tape, and burped easily. We fitted the Cyclocross rimstrip and it inflated a lot easier, either with some vigorous pumping from a normal track pump, or very easily with a compressor. In use it may need a layer of 17mm Velox tape under the rimstrip; we'll find out soon and add to this page.
Road Tubeless
To be confirmed, but since the Hutchinson cyclocross tyre inflated easily, the road tubeless tyres should too using just the yellow tape and 44mm valve stem...[ continue reading >> ]
This post was posted in technical info and was tagged with road, tubeless, Velocity, A23
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