Thursday, July 30, 2009

Bontrager XDX TLR Tire Review

Since switching to full rigid, I've come to realize the importance of a large volume tire. Initially I just wanted one for the "suspension" it would provide. After spending some time on a few different models now, I've come to really enjoy the added benefits of a big tire. Benefits such as smoother rolling, more traction, etc. With many of the modern tires available, they are coming in large sizes with little weight penality. For example, the Bontrager XDX TLT 2.4 Tubeless-ready tire weighs 732 grams on my scale. 732 grams for a 2.4 tubeless-ready tire... that isn't bad.

This is one of Bontrager's more recent tire designs. I was hunting for a tire to replace my 2.35 Kenda Nevegal that failed (we'll save that story for another time) and came across this one at my LBS. It uses mostly square knobs in a pretty open spaced pattern. Almost like a Kenda Small Block Eight but with less knobs and more spacing.


Given that I wanted the large volume for comfort, I have been running the tire around 23psi. I have it mounted to ZTR Flow rims and am running it tubeless with 1.5 scoops of Stan's sealant. It rolls noticeably faster than the Kenda Nevegal (not that that is saying much). It gets a little skittish on loose-over-hardpack in the corners, but hasn't washed-out yet. The nice thing is that it is predictable in its traction even when it starts getting skittish.

Overall, I think it is an excellent tire. It is a pretty good value and handles nicely.

Monday, July 20, 2009

The Feel of Steel

So I've had a few rides on the new Ala Carte now and can finally provide some review information. This really isn't a review so-to-speak, but more of just observations about the bike.

The feel steel frame is definitely noticeable compared to other aluminum framed bikes I have. It has a subtle vibration dampening that is most noticeable with little, repetitive bumps (like the groves in a sidewalk). This translates into a slightly smoother ride on the trail. I can say that I notice the difference in ride the steel frame provides. The top-tube is a little on the long side for most small frames, but the fit is pretty good. I love the looks of the skinny tubes too.

Now, about riding full-rigid. I was fearful that it would beat me up bad on the downhills at first. And it does... but only sometimes. Big bumps are not big deal and I can roll over most small ones with no problems (remember, 2.35" tires), but when I come across repetitive big bumps, like wash-boarded sections, it almost becomes hard to hold on to. My arms become jello by the time I reach the bottom of the trail.

Luckily, the Boise foothill trails are mostly smooth and don't have much wash-board. There are times when suspension would be nice, but I'm in no hurry to slap a spendy fork on it anytime soon. Plus, I like the looks on the faces of the guys riding full-suspension bikes as I pass them on the downhill :-)