40PSI is great and is all the puncture protection I seem to need. Does anyone have suggestions for how to build such a bike for under $1000? Most people that asked me to test this tire really wanted to know how it performs in the rolling resistance tests. As part of Bicycle Quarterly, Jan Heine routinely tested bicycle parts that weren’t readily available to the U.S. market. These tires will … Because that is why we made them in the first place: So we and others could enjoy riding our bikes even more! And they don’t really cost any more than other brands of high-performance tires. Good luck. Can be a good tire if you don't care about puncture resistance. 200 easy strokes from flat to about 40psi. * Puncture Factor = Puncture Resistance * Total Tire Thickness. Can you give me a rough breakdown on how much you paid for different pieces to get to a $650 investment? I am going to follow your advice most of the way, however. Compass tires: $130 New ones come in a little over your $1K mark, but are still a good value. The 700x35c rated Bon Jon Pass with the regular casing has a specified weight of 355 grams. In our lab tests, the Bon Jon Pass performs well although maybe not as good as expected from such a thin and light tire. The Compass Cycles Barlow Pass tyre is a tubeless-compatible (TC), ultra-supple tyre that delivers an astonishingly smooth and grippy ride. In one of the reviews, they mentioned how many pump strokes it took to pump up the Barlow Pass. If I could get one for under $500, I would go that route. http://www.velovitality.co.uk/ appear to sell the tires in Europe I've opted to test the Bon Jon Pass with the regular tan colored casing. There are also some brake levers with built-in QRs that allow the brakes to open even wider. When we compare this to the fastest rolling tire in the touring bike category, the difference is immense as the Schwalbe Marathon Almotion (read review) scores 86 points for the tread and 5 points for the sidewalls. 3 Unlike most manufacturers that just sell several sizes of a single tire, Compass sells basically the same tire with a different name with the only obvious difference being a different size. Lezyne Swivel Drive HP pump (no longer made â similar to the Micro Floor Drive HP but about 3cm shorter, and easily fits in handlebar bag) Compass Bicycle Tires a Year in Review - Part 2 - Duration: 8:38. It seems like I’d spend nearly half of that on wheels and tires, which doesn’t leave much room for a modern groupset. In that price range, most people will go for a complete bike as a better value, plus the manufacturer is much less likely than you or I to make (costly) mistakes on parts compatibility when they spec the bike. Certainly a demand for a range of tires used in between pure road and all-dirt. 650bx42 44 strokes You canât add cantilever brakes to most frames, as these require brazed-on bosses, and adding those is probably outside your budget. 700cx23 28 strokes Had not seen this, when I wrote my reply above at a later time, but my calculations were not totally crazy then. As I reported in that review, the Stampede Pass tires performed admirably. This is easy to measure with a ruler or calipers â itâs the distance between the inner surfaces of the rear dropouts. Groupset? (Iâm ignoring temperature, assuming itâs a small variable here.) And you donât need to ride on gravel or rough roads to appreciate the comfort and performance of wide, supple tires. Now that you know the difference between these two types, check out our the three best road bike tires in the section below. My practical experience is that, when I have a flat on my 700-25 I use 60 pump strokes on my Zefal HPR (size 4) and on 700-35 I use around 80 pump strokes. So the higher the pressure, the fewer molecules of air you put into the tire per stroke, and the magnitude of this effect depends on the pumpâs stroke volume and dead space volume. © 2020 Rene Herse Cycles | Privacy and Terms. Panaracer makes the tires for Compass so construction is solid. Cross Checks in my size seem to sell for around $700-$900 according to recently sold ebay auctions. showing, with the same pump, how many strokes does it take to fill: Compass claims their tires offer superior comfort and are some of the fastest rolling tires thanks to the suppleness of the casing. Similarly, if there are cantis already, they wonât be in the right place if you change wheel sizes (not that youâd likely need to do that). In the sidewall puncture test, it performs awfully as well with a score of just 3 points (basically the lowest possible score). The tires are not quite as slender as a road bike but not like most hybrid bikes either. Anyway, that’s what I did. I have a great road racing bike but I find myself riding bikes equipped with the Compass 38’s for just about everything these days. 03-02-2019 #5 Please look at the charts below to see how it compares to the competition. Plus my experience is that under 25PSI on 559x55mm tires is basically ‘un-flattable’. If youâre committed to that size, you want to know in advance that itâll work. I am looking forward to riding on what will be my first pair of Compass tires as soon as I receive the 650B bike that I recently ordered (an Elephant Bikes National Forest Explorer, which handles 42 mm with fenders). There is little disadvantage to doing so and youâll benefit from the improved ride quality and traction in corners. Why do you think I run these tests from 30 psi to 90 psi? I think this simple explanation is probably thrown off by the dead space of the pump. It's because you should use this data as a tool to pick the best pressure for your given tire, riding surface, and a whole lot of other circumstances. These people have nothing invested in the product, and they usually have significant experience with similar components. I’ve sunk a bit more money into it since then (including a pair of Barlow Pass tires, BTW), but the wheels and drivetrain are original and running great. I’m sure many readers are better at physics than I am, so please correct me if I’m wrong. Any interested airologist can submit their data, although I doubt we’ll be able to check and verify any time soon. Jon, (From Compass staff) Should I buy a Bikes Direct cyclocross bike and pop on 700x38s? Tread depth is virtually non-existent at 0.3 mm. The Bon Jon Pass is a very thin tire with a tread thickness of 2.9 mm and a sidewall thickness of just 0.6 mm. TEST VERDICT: I would be interested in a physicist (or whatever scientist could figure this out: airologist?) In the puncture resistance tests, the Bon Jon Pass waves a white flag as it performs terribly here. That’s an option to consider if you want to avoid deflating the tire. Long reach brakes: $55 Although I've placed the 35 mm wide Bon Jon Pass in the touring bike category, it has become obvious to me that this is more of a big road bike tire than a true touring bike tire after taking these measurements. I’ve been continuing my voyage through the wide-rubber-specialists Compass … It’s certainly a combination of having far fewer molecules of air and a greater pressure pushing the air through the rubber tube and past the valve, but the narrower tire definitely requires topping-off far more frequently. 700cx23 to 100psi James – There are, however, a few parameters to watch. I just wish the 650B tires didn’t look so goofy with my 25″ frame. At higher pressures, the amount of air that is lost from each stroke (not pumped into the tire) would be higher than at lower pressures, because the dead space is a fixed volume, so at higher pressures it holds more molecules of air. https://janheine.wordpress.com/2014/01/01/tires-how-wide-is-too-wide/ Older frames often have more tire clearance, but be careful of the rear dropout spacing. The Downsides of Wide Tires https://janheine.wordpress.com/2012/01/30/the-downsides-of-wide-tires/. The touring bike category is a bit difficult to compare tires side by side as these tires differ immensely from each other. “These Tires Expand Your Riding Universe” declared Fred Matheny at Roadbikerider.com after riding the 700C x 38 mm Barlow Pass Extralight tires. You go more rapidly plus my experience is that under 25PSI on 559x55mm tires is ‘... 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