Why use the Nimbus?
Where can I find the target weight data on the Specialized line of tires? Specifically the 'road-like' 26" Nimbus 1.5? I'm looking at putting these on my old rigid Trek 930 for lower rolling resistance and (hopefully) lower weight so I can come closer to keeping up with my wife on her new road bike..
If you really want to keep up with your wife, why use the Nimbus? How fast is she?
If you want a tire that is faster, Specialized has a couple choices.
1. The Fat Boy at 26x1.25 that is stated to weigh 325 grams but which according to the weightwennie reports actually ends up at 350 grams. It can be pumped up to 100 psi and higher
2. The Specialized All Condition Pro at 26x1.25 that is stated to weigh 285 grams, but which I've found to be even lighter. I run one of these and have only had one flat in 2,000 miles.
This tire can be pumped up to 125 psi and is a copy of one of their road tires.
Or you can go to Performance Bike and buy the following 26x1.25 tire which is a fairly close copy of the Fat Boy.
At $7 per tire, this has to be one of the best values around. The tire weighs 350 grams and is rated at 85 psi, but I have one on the front that I run all the time at 100 psi.
BTW, the Fat Boy is about $20 each.
With this tire from Performance, I run Specialized 1.0-1.15 tubes and they work just fine.
So there you have it........Both the tires I use seem to do the trick and both will run faster than the Nimbus.