Testing a 29er

There's still so much talk about 29ers these days. Frankly, I was hoping they'd have gone away by now. Life was simpler with one wheel size for mountain bikes. However, being a professional, I wasn't about to let my misgivings get in the way of true investigative journalism. Therefore, today, part way through my ride on my 26er hardtail, I decided to give this whole "movement" a try. Did I switch bikes? No, that would possibly insert additional variables (such as a different frame and components) into the equation (and we all know how bad that would be). Instead, I swapped out the only component I could fit on my current set-up. I took out my front wheel inner-tube and swapped it with a 700c inner-tube.

(Okay, technically, it was a 700c x 18-25mm, but I believe the diameter--not width--is the key to 29ers.)

Now, I would have changed out the tire, too, but then I would have needed a new wheel. A new wheel, as you might suppose, wouldn't work with my existing fork. So, as you can see, I changed what could be changed without having to re-architect my whole bike. By doing this, I feel I've struck a balance between embracing a new standard and running my existing set-up so as to not introduce additional factors.

Also, technically, I was riding a 69er since my rear wheel's inner-tube remained the 26" variety.

How it rode
Well, I did the majority of the ride on this set-up (all the remainder, if you must know). To be honest, I don't know what all the hype is about. I mean, it worked, but the whole time I felt a little less confident. My wheel (the front) would squirm a bit around corners and going over obstacles. It felt as if it would roll off the rim quite easily. Now, perhaps this is what some proponents of 29ers have called, "rolls over obstacles more easily," but for me it really felt like it should be described as, "rolls right off the rim more easily." Now granted, I didn't actually try both wheels. Perhaps it would roll completely differently with two 700c inner-tubes. (Actually, I probably could have fit two in the front tire alone. Maybe 4 is the magic number.*

Verdict
I wouldn't go this route if I could help it. I mean, it's fine in an emergency**, but I don't think I would chose to run with this configuration on purpose. It _still_ remains to be seen if this will catch on.

* Okay, no one better run out and patent running four tiny tubes in your standard rims to use in a "run flat" setup. I thought of it/you saw it here first.

** Here's the type of emergency I could see it working for. Say, for instance, you're about to start a ride with a friend. He turns to you and says, "Do you have any 29er tubes? I'm all out." To which you respond, "No, do you have any 26er tubes? It looks like I don't have any of those, either. I'll just bring along my lone road bike tube in case I needed--but I'm sure I won't." You then pump up your skinny tires to about 30psi--wishing you had tubeless like your 29er friend.

After only a couple miles into the ride, you roll casually around a seemingly harmless corner and get a snake-bite puncture somehow. Good thing you have that road tube. You and your friend laugh as you put that tiny tube into your 26er tire. Then you pump and pump and pump until it feels like most of the tire is full of tube, but not down by the rim. No, the part down by the rim was empty. Huh. I guess that's what happens with a larger diameter tube.

Okay, with that in mind, what would you do? trace back the way you came or press on? If you're the inquisitive type, you'd press on the remaining 6 miles guessing that "It'll all work out." Corners are scary. Steep rocky descents are scary. It works in the end, though. "Not to mention," you say to yourself, "it's much lighter than before so it climbs with ease!"

A lesson you might learn from all this is, the wrong tube is better than no tube.