Specialized 2008 Rockhopper Disc w/ Forte FastCity ST/K Tires
(Click for bigger image…)
Two more of the packages of bike stuff I’ve been waiting for arrived today, bearing the GPS mount, smooth tires (Forte FastCity ST/K), tubes (yes, including the wrong ones with Presta valves), Crank Brothers tool, tube patching kit, tire tool, and stuff like that.
With Zinn and the Art of Mountain Bike Maintenance arriving yesterday, I’d started giving it a read. It’s pretty good, although a bit more basic than I need. As the book says in the beginning, it’s really for someone who isn’t comfortable doing mechanical work yet and wants all the basics. Still, it’s nice to see the in depth descriptions of how certain bits of a bike are to be taken apart, info on lubricating and cleaning bits, exploded views of things, stuff like that. Oh, and the author’s nifty bits of amusing advice and warnings are good too.
I read through the section on installing tires (only three pages), then went ahead and put the new tires on my bike. They are some smooth road-ish tires which a friend of mine rather likes. Putting the new tires and tubes on was easier than I expected. Removing the rear wheel was a bit of a problem, as I either don’t know a good trick for getting the rear quick release around the derailer, or it really is just difficult. Regardless, it got done.
After the tires (and GPS mount) were fitted I decided to go for a test ride around the neighborhood, to see how the tires, GPS, and things like that all work out. The first thing I noticed was that the tires work great. At ~70psi things were nice and smooth, exactly how I wanted it to be on pavement. The tires have a maximum of 90psi or so, so this is well within a safe range. I would have liked to have gone farther, but I don’t have lights yet, so riding in public wouldn’t be legal. The neighborhood here also has streets and is relatively cut off, so I figured it was a good, safe area for playing around and trying out braking and such.
Next I noticed that the GPS kept crashing, leaving a single column of pixels on the screen, and the bike computer wasn’t registering revolutions. Some side of the road poking around showed that the GPS’ backlight interferes with the wireless bike computer. This shouldn’t be a problem, as I’ll rarely be using the backlight anyway, but it is a bit annoying. I also need to determine if the bike computer was somehow causing the GPS to crash. I had recently upgraded the firmware on the GPS and thrown some new (2008) maps into it so that could somehow be related, but… I’m not sure. I’ll have to poke with it more and see.
While riding around, the bike computer clocked a maximum speed of 23.7MPH, but as these bike tires are a bit smaller than the knobby ones, I think that may have been about 10% off. Still, I’m pretty happy with how much faster I was able to ride. After three (fast, for me) laps around my neighborhood I was pretty cold, which is to be expected when wearing a nice flow-through helmet and having no hair.
Either way, I’m pretty happy. I just have to wait for the bike frame pump to arrive and then I can figure out what bag to get, and maybe go riding some this weekend. If the weather holds out it’ll still be reasonably warm, and as long as the trails haven’t acquired more snow / ice, I’ll try and hit up some of the local paved trails and see how things go.