In so many of the discussions I've had with other bike geeks, and in the majority of articles I've read in the bike magazines and blogs over the years, the discussions often focus on the quality of the frame or the frame material. Think how many arguments have been waged over Steel vs. Aluminum vs. Titanium vs. Carbon. Even in the "old" days when nearly everyone rode steel, riders still debated Reynolds vs. Columbus (or Vitus, or Tange, etc.).
Now, I'm not going to throw all that out the window and say the frame isn't important. Obviously a good frame is the backbone of any good bike. Hell, the way I (and many others) see it, you can change/replace pretty much any part on a bike except the frame, and most people would still say it's the same bike. Replace the frame (and move all the old components to the new frame) and it's a different bike. But these days, I think that any comparison that doesn't take tires into account is incomplete. Take a bike that seems to have a lackluster ride - one that feels heavy, slow, or "dull" - and swap the tires and sometimes it can transform the bike for the better.
Readers who are anywhere near my age probably remember when the big trend in tires was narrow 19 - 20mm clinchers (probably pumped up to 120psi!). Starting in the late '80s, many racing bikes would strain to fit a tire any bigger than 23mm. The thinking at the time (based on lab tests using tires run on mechanical rotating drums) was that hard and narrow was faster. Of course, that meant a lot of folks were riding criterium bikes with rock-hard tires that could chatter one's fillings loose. More recent studies that take into account the bike and the rider on actual road surfaces seem to dispute those old results to the point that today the trend seems to be going the other way. Bikes are being made to accommodate larger tires, and the belief is that using that extra air cushion to smooth the ride wears a rider out less, and might actually be faster. I know that I am definitely going larger in my tire choices - and am glad that many of my bikes will fit them.
Part of what got me thinking about this was my commuting to and from work - and my non-retrogrouchy pack mule of a commuting bike. That thing has an aluminum frame with massive, oversized tubing and wildly manipulated tube profiles (swaged, oval, or even hexagonal). It's not pretty (in fact, to my vintage-bike aesthetic, it's an abomination!). Anyhow, besides the fact that I can ride it in the rain, snow, or salty slush without caring, it can also fit 35mm tires with fenders. A frame like that could potentially have a pretty punishing ride - but the large tires help that a lot.
Here's another thing - it isn't enough that the tires be large-volume. The kind of casing, tread, and weight also make a difference. Jan Heine has written about this a lot in his Bicycle Quarterly magazine and on his blog. Now, one might take what he says with a grain of salt because he also markets and sells his own line of tires (Rene Herse - formerly Compass). But in my experience, the claims hold true and the tires live up to the billing. As I understand it, the tires came about because of the testing they had done with the magazine - not the other way around.
Anyhow, it's not just about size or width. For a given tire size, light and supple tires will usually outperform those with stiff casings, thick tread, and "flat protection" belts. Part of that is borne out by conventional bikie wisdom: reducing weight from rims and tires makes a bigger performance difference than reducing weight from the frame or other components. But the "suppleness" of the tire casings has a noticeable effect on a bike's ride. It's a big part of why vintage sew-up tires with silk casings feel so good and fast.
So, back to the ugly pack mule. When I first got that bike, it came equipped with 35mm Schwalbe Marathon tires: a very popular tire among many tourists and commuters. They are known for their durability and flat resistance. Honestly, I think the tires must be made for streets that are paved with broken glass, roofing nails, and thumbtacks - and overkill for my needs or tastes. The major downside was that the bike felt sluggish and slow. The ride was pretty miserable, to be honest. One of the first things I did with that bike was take off those tires and replace them with a pair of Continental Contact Speed tires (sometimes labeled "Sport Contact"). The size/width was the same, but the Continentals were noticeably lighter. The casings were thinner and more flexible, the tread thinner, but still with some flat protection built in. The bike was completely changed. It was more comfortable and the handling was almost "lively." It's possible they are potentially more"fragile" than the Marathons from a puncture-resistance angle, but I've never suffered a flat in the time I've been using them, going on two years.
|After nearly two years, the center is worn smooth,|
but I think there's still enough rubber there to
get me to Spring. I have a brand new pair ready to
mount up when they're needed.
As long as I'm on the topic of tires that can really improve the ride, I'll mention that I'm still a huge fan of the Panaracer Pasela tires, which are available in a large range of sizes and widths. And if I were after the best "performance" above all other considerations, it's worth noting that they are even lighter and more "supple" than the Continentals. I've used them for commuting, and they're a great "all around" tire - but I did suffer a couple of flats with them on the ride to work, and as far as I know, they don't seem to be available with the reflective sidewall. They are nice tires, though, and the price is terrific.
And then there was snow.
We had some snow a couple of weeks ago and I put the tires on. But after a few days, temperatures came up and the snow melted. With no more snow in the forecast, I decided it was worth taking the time to swap the tires again. If I see snow in the forecast, I can always switch them back (again) - but I just can't see keeping those winter tires on there if I don't absolutely need them. As great as they are when you need them, they are just awful when you don't.
I will say this - switching to the Continental Contact Speeds after riding a few days on the Winter tires made the bike feel like it had wings. That's a darn good feeling.