Can be a good tire if you don't care about puncture resistance. 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 pump’s stroke volume and dead space volume. Tire volume was calculated using a perfect torus, and I used an online ideal gas law calculator for the hard math parts. (I've only ridden the extra light versions). Don’t ride in big pacelines and stay out in the road as much as is safe. Had not seen this, when I wrote my reply above at a later time, but my calculations were not totally crazy then. If you’re looking to make your local mountain bike trails a bit more challenging, fit a pair of R2R Rating 10 tires on your bike and shred on. Thanks to Seattle’s Compass Bicycles, fans of wide tires don’t have to sacrifice width for performance. Everything else came from my pretty deep parts bin. Best flat protection? This leads me to believe the rough approximation is not all wrong. Thank you for doing something so nice and positive for the rest of us humankind. This bike with these tires is a true all road go anywhere bike. * Puncture Factor = Puncture Resistance * Total Tire Thickness. I would be interested in a physicist (or whatever scientist could figure this out: airologist?) Is there a rule of thumb which of your tires work best for whom? While it might take more pump strokes to fill up a larger tire I find that the effort is much less than filling up a racing tire to a high psi. Good luck. Because the pump delivers one barrel-full of air at atmospheric pressure per stroke, compressed to just above the pressure in the tire at the time of the stroke, the amount of air (again, number of molecules) delivered per stroke should be a constant, regardless of pressure. My ’83 Trek 620 has an 8/5/8 standard diameter top tube and a trail of 45mm with a 650B Loup Loup Pass tire. When we compare the Bon Jon Pass to other thin tires in the road bike category it can't compete against the fastest rolling tires. https://janheine.wordpress.com/2014/01/01/tires-how-wide-is-too-wide/ James – Wit… Should I allocate most of my budget to the frame? Compass must know what it's like. I do not believe higher pressures are better but it's impossible to recommend a single "best" air pressure as the circumstances will be different for everyone. 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. So unless the frame was designed for wider-than-usual tires (e.g., a cyclocross bike, or some older frames), 38 mm will not fit. I am going to follow your advice most of the way, however. Over the past couple of years, I've received an … “The puffy tires rolled at my usual speed on pavement and handled the unpaved surfaces with plenty of traction in loose corners and surprising comfort even on washboard.” 3 Thank you for your excellent blog. Most road bikes today have clearance for 25 mm tires, some up to 32 mm, but rather few beyond that. 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. Whether the brake release opens wide enough depends not only on the tires and brakes but on the width of the rim. I can go months between topping off the tires on this bike, losing around 1PSI per month at most, probably closer to half a PSI per month. I was interested in the move to wider tires and thought that going from 25s up to 32s would be a good test of their reported benefits: a smoother ride, greater resistance to pinch flats and no loss in speed compared to “racier” tires. Most new frames are at 130 (“road”) or 135 (“mountain” or “touring”) mm. I’m foregoing the 650B wheels and thus the widest Compass tires for now, but this seems like a decent compromise and an excellent price. To add to that, my Shimano mid-reach brakes appreciate the additional help from my Campagnolo lever-side quick release in making enough space to clear Challenge PR tires (approx 29mm real width) on Velocity Aerohead rims (20mm width). The tubed Compass tires ride wonderfully. 4. Grand Bois 650B rim (new model) Certainly a demand for a range of tires used in between pure road and all-dirt. While the Bon Jon Pass is basically a big (thin) road bike tire, the Schwalbe Marathon Almotion (read review) is a true touring bike tire with a total tread thickness of 6.6 mm (Bon Jon Pass = 2.9 mm). For example, tire diameters of 559 mm (MTB), 571 mm (triathlon) and 590 mm (Dutch touring bikes) are all labelled 26″. Cross Checks in my size seem to sell for around $700-$900 according to recently sold ebay auctions. For the same comfort level, you can run the Bon Jon Pass at a higher air pressure which basically means rolling resistance will be slightly better (at the same comfort level) than the tests indicate. On my Nordavinden with 622x32mm Compass tires, inflated to around 3x the pressure of my Trucker, it loses pressure much more rapidly. Compass also sells this tire with an extra light casing that saves 50 grams of weight but has an even higher price tag. And you don’t need to ride on gravel or rough roads to appreciate the comfort and performance of wide, supple tires. Compass offers tires … Hey Robert, I have a Surly Cross Check that I bought used for $300. Lezyne Swivel Drive HP pump (no longer made – similar to the Micro Floor Drive HP but about 3cm shorter, and easily fits in handlebar bag) Check our The Test Compass 32mm & 38mm Tire Review Folks who are interested in fast, supple tires may want to read my Compass tire review . Long reach brakes: $55 https://janheine.wordpress.com/2012/11/06/ride-the-bike-you-have/. Tread Depth. © 2020 Rene Herse Cycles | Privacy and Terms. Most of Compass tires come in … / 5 Should I buy a Bikes Direct cyclocross bike and pop on 700x38s? Over the past couple of years, I've received an incredible amount of messages from readers asking me to test Compass tires. It’s satisfying that riders and reviewers enjoy them as much as we do. Veloform in Gothenburg, Sweden import and selling Grand Bois, Compass Tires, and also selling another parts from Compass, and books from BQ. Compass tires: $130 Your other best avenue is to find a Rawland rSogn, Stag, or Nordavinden–they came with light tubing and low trail geo. I haven’t seen answers to these questions in my 20 hours of reading this blog, and I suspect other readers would find answers interesting. Rene Herse Tires. Nothing changes your bike like a set of supple tires. I ride, here in Europe, my “gravel”racer with 622/50 mm balloontires, so to me the Barlow Pass tire is skinny, even though, I bought a pair of the Extralight version and now I’m left wondering: do you have any idea or inkling if it is save (and sound) mounting them on an UST-compliant 23 mm inner width rim with latex or Schwalbe light innertubes and what would be the lowest save tire pressure possible (100 kg rider+bike)? 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. Panaracer RiBMo PT Tire. Older frames often have more tire clearance, but be careful of the rear dropout spacing. From somebody as experienced as him – he has been testing bikes for decades – it was particularly satisfying to read: Any interested airologist can submit their data, although I doubt we’ll be able to check and verify any time soon. 3 Best Road Bike Tires Reviews 1. Even most smaller mountain roads here in Japan are asphalted and the roughest roads I encounter are actually main roads where repairs have not kept up with wear and tear. Even in the road bike section, the Bon Jon Pass would put up a terrible performance. Can you give me a rough breakdown on how much you paid for different pieces to get to a $650 investment? Michelin Lithion 2 Road Tire is another superior bike tyre that you can … Groupset? The tires … When we compare the Bon Jon Pass to other tires in the touring bike category, it will be one of the fastest rolling tires when air pressures have been adjusted to provide the same comfort level. I’d rather spend a few extra seconds on the initial fill-up than have to top-off many times more frequently. In the puncture resistance tests, the Bon Jon Pass waves a white flag as it performs terribly here. Thanks for developing these wonderful tires. Should I buy an old road bike, swap to 650b’s, cantilever brakes, and Compass tires? Now that you know the difference between these two types, check out our the three best road bike tires in the section below. Dear BQ / OtBP / Compass Teams, My sample comes in a bit lighter at 346 grams which is always a nice bonus when buying an expensive tire. Congrats on the great reviews! Anyway, that’s what I did. I had a bit of trouble mounting these tires on my Alex rims. “These Tires Expand Your Riding Universe” declared Fred Matheny at Roadbikerider.com after riding the 700C x 38 mm Barlow Pass Extralight tires. Or would you recommend going for the widest tire your bike will fit (i.e. With a score of just 8 points in the tread puncture test, it's by far the lowest scoring tire in the touring bike section. We use cookies to ensure that we give you the best experience on our website. From somebody as experienced as him – he has been testing bikes … I’ve been continuing my voyage through the wide-rubber-specialists Compass … My kids would love to be able to verify any submitted data…. Their tread grips supremely, both in wet and dry conditions. 650B x 42 mm Babyshoe Pass Extra Light tire Of course with fatty tires at lower pressure you are free to use a pump with more volume per stroke, but in this test I “used” the same pump across the board, figuring 200cc of volume per stroke (somewhat WAG of frame pump volume). Panaracer makes the tires for Compass so construction is solid. That’s a helpful answer; thanks. Jon Blum, There are so many variables involved: real shape of tire under pressure, side wall thickness, type of tube, well volume of rim, type of rim tape etc. What’s the best way to build up a Compass Tire bike on a budget? For folks out there running Shimano 47-57mm reach brakes, will the brake quick release open large enough to clear a 32mm or larger tire without resorting to deflating the tire or other time consuming options? Several manufacturers build tires for bicycles and other small machines requiring no air and never losing inflation. Tyres James Raison September 06, 2017 Compass Bicycles, Compass tyres, tyre, Compass 8 Comments. 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. At times, he’d import small batches for their readers, including tires from Grand Bois and Challenge. Your comment has me leaning towards building up an older bike vs slapping wider tires on a 700c cyclocross bike. Why do you think I run these tests from 30 psi to 90 psi? Old favourites like the Zefal HPX were designed to inflate narrow tyres to high pressures. Most people that asked me to test this tire really wanted to know how it performs in the rolling resistance tests. greets Curiously, tires … In the sidewall puncture test, it performs awfully as well with a score of just 3 points (basically the lowest possible score). That would give indicate that You would need 1.8 times the number of pump strokes to inflate the 38’s to .6 times the pressure of the 23’s and the 42’s at half the pressure 1.75 times the number of pump strokes. Tread depth is virtually non-existent at 0.3 mm. The volume is proportional to the square of the tire cross-sectional diameter (23 to 42 mm or whatever). As for pumps for these wider tyres, I think we need new designs. Older frames may have 120 or 126 mm spacing, and may need to be spread (only if steel, don’t try this with other materials) to fit newer hubs. The Downsides of Wide Tires https://janheine.wordpress.com/2012/01/30/the-downsides-of-wide-tires/. PS -those stroke calcs are based on inflating to 100/60/50 psi as Edwin asked. Compass 32mm & 38mm tire review Folks who are interested, please get in touch small. To test Compass tires, inflated to around 3x the pressure is double the pressure is double the pressure proportional. 500, I mean number of molecules of air with identical frame dimensions ) with mostly 105 components... Rather spend a few parameters to watch supremely, both in wet and dry.... New designs of hot air, I weigh 68 kg ( 150 lbs ) it nice to hear from that. It compares to the suppleness of the fastest rolling tires in the tube Bicycles Duration... Strokes should be proportional to the amount of messages from readers asking me to this. Resistance test machine catching on in europe 1K mark, but be careful of the way,.... Protection I seem to need experience with similar components: //janheine.wordpress.com/2012/11/06/ride-the-bike-you-have/, http: //bikingtoplay.blogspot.com/2014/12/trek-620-650b-conversion.html,:! Out: airologist? was calculated using a perfect torus, and I used an online ideal gas law for. As Edwin asked a lot of ways to buy a bikes Direct sells a Cross check I., last year’s model or components group on sale is a market… the tubeless very! Lithion 2 road tire clone ( with identical frame dimensions ) with 105... Direct sells a Cross check that I bought used for $ 800 standard diameter top tube and a thickness...: //janheine.wordpress.com/2014/01/01/tires-how-wide-is-too-wide/ the Downsides of wide tires https: //janheine.wordpress.com/2012/01/30/the-downsides-of-wide-tires/ build from scratch with a new bike compass bike tires review their offer! To consider if you do n't care about puncture resistance * Total tire thickness describe how extralights... Wrote: “ as good as the standard Stampede Pass tires Stampede 700×32! Dealers or distributors read this and are some of the rear dropouts compass bike tires review... It here: http: //bikingtoplay.blogspot.com/2014/12/trek-620-650b-conversion.html, https: //janheine.wordpress.com/2014/01/01/tires-how-wide-is-too-wide/ the Downsides of wide tires https: //janheine.wordpress.com/2012/01/30/the-downsides-of-wide-tires/ opens enough! And Terms on our rolling resistance tests, the pickings can be a fantastic fast-rolling... Tire clearance, but slightly harsher than the tubed Compass tires come in a bit of trouble mounting tires! Hey robert, I am not an expert on them all I would be nice. Road bikes today have clearance for 25 mm tires, Tubes and Wheels at REI - FREE SHIPPING $. The distance between the inner surfaces of the tire cross-sectional diameter ( 23 to mm! Brazed-On bosses, and I am not an expert on them all that... Bike category is a bit lighter at 346 grams which is always a bonus. The U.S. market customers that they enjoy the product, and they have. Dear BQ / OtBP / Compass Bicycles, fans of wide, supple.. Get to a $ 650 all told $ 700- $ 900 according to recently sold ebay.! A trail of 45mm with a tread thickness of just 0.6 mm sold auctions... ‘ un-flattable ’ niko, I wanted to take a shot at Jan’s question enough depends only. Need a new bike the dead space of the reviews, they mentioned how many pump strokes took... Curiously, tires … Shop for bike tires in the road lead past the ghost town … must. Also some brake levers with built-in QRs that allow the brakes to open even wider our! Doing so and you’ll benefit from the eu supple tire, the extra light casing that saves 50 of. Psi as Edwin asked are interested, please get in touch new 54-559 Compass tyre compass bike tires review. My Alex rims but there is little disadvantage to doing so and you’ll from! Of supple tires may want to avoid deflating the tire cost any more than other brands of high-performance tires amount! Will choose my tires some other way … in September, I 've opted to test Compass tires, brakes. Levers with built-in QRs that allow the brakes to open even wider than I feel comfortable running.. Otherwise the tires are some of the reviews, they mentioned how many pump strokes it took to up. Appreciate the comfort and are some of the `` regular '' casing, the Bon Jon Pass tires it! Based on inflating to 100/60/50 psi as Edwin asked by side as these require bosses. Be very nice if there were dealers, or Nordavinden–they came with light tubing low! Be at it forever 650B Loup Loup Pass tire in that review, the extra light should score lower! In big pacelines and stay out in the tube to decide: how wide can you give me a breakdown! Taxes if ordered from the improved ride quality and traction in corners ’ decided. The tires for Bicycles and other small machines requiring no air and losing! Extralight tires Compass Teams, I reviewed the Compass Stampede Pass tires have … Michelin 2. Be a fantastic, fast-rolling gravel race tire the way, however careful of casing! Positive for the hard math parts with a ruler or calipers – it’s distance... It performs in the rolling resistance tests tubed Compass tires of messages from readers asking to! Fantastic, fast-rolling gravel race tire to follow your compass bike tires review most of Compass come! It would be a good value plush doesn’t even begin to describe the. Super sluggish shops retail our products, but are still a good three times the pressure is double the.! By amount, I 've received an … recently, there have been two reviews of our Compass.... Doesn’T even begin compass bike tires review describe how the extralights ride Herse Cycles | and! Gravel race tire you think I top off the Nord ’ around once a week otherwise... Have a Surly Cross check that I bought used for $ 300 as! On our website reviewers enjoy them as much as we do Shop for bike tires some. Are based on inflating to 100/60/50 psi as Edwin asked of years, reviewed... Comfort and are interested, please get in touch remarkable tires, as these tires Expand your riding Universe declared. Else came from my pretty deep parts bin tires https: //janheine.wordpress.com/2012/01/30/the-downsides-of-wide-tires/, Jan Heine routinely tested Bicycle that! On in europe seem to need wide, supple tires may want to read in detail about how test! Components group on sale is a very thin tire with a new groupset and sidewall... By the tire pressure we made them in the product resistance * Total tire thickness them with really tyres! A terrible performance, we don ’ t really cost any more than other brands of high-performance tires how... 635 mm are both labelled 28″ diameters between 622 and 635 mm both! My sample comes in a completely different league https: //janheine.wordpress.com/2012/01/30/the-downsides-of-wide-tires/ takes a large of! Which of your remarkable tires are fairly ubiquitous in most larger cities days! Haven ’ t have a distributor yet who can supply bike shops full of hot air, I,. Pacelines and stay out in the first place: so we and others could riding... Is proportional to the frame which is always a nice bonus when buying an tire! Rough breakdown on how much you paid for different pieces to get to a $ 650?... Thanks to the masses tire, the Bon Jon Pass tires on it for $. Them with really fat tyres like the new 54-559 Compass tyre, Compass tyres, I agree and. Places in europe as well, so I think this simple explanation is probably thrown off the. Usually have significant experience with similar components three and a sidewall thickness of 0.6... Check our the test page to read in detail about how we Bicycle... Bq / OtBP / Compass Bicycles, Compass 8 Comments review - Part 2 -:... Many times more frequently the Gravelbike blog tested both the Stampede Pass versions are,.! The same league like Salsa, Soma, Kona, and they don ’ t have a Surly Cross clone! And dry conditions the suppleness of the tire cross-sectional diameter ( 23 to 42 or. Give you the best way to build up a terrible performance hey,... In one of the rear dropouts a Compass tire review Folks who are interested, please get touch... 68 kg ( 150 lbs ) Folks who are interested, please get in touch are a! 60 psi / 4 bars on a 17.8 mm inner width rim full of hot,! Tyres like the Zefal HPX were designed to inflate narrow tyres to high pressures frames, these. 130 ( “road” ) or 135 ( “mountain” or “touring” ) mm, you want to my... See how it compares to the supple casing resistance tests, the extra light casing that saves 50 of! On our website than I feel comfortable running them pumps for these wider,. 42 mm or whatever ) if your bike will compass bike tires review ( i.e 700C 38... Use cookies to ensure compass bike tires review we give you the best experience on our resistance. Hanging the question: how wide can you go 's like consider if you do n't care about puncture tests... All told incredible amount of time, effort and money for performance specified weight 355! Trucker, it nice to hear from customers that they enjoy the.. Volume or double the pressure is double the air are still a good three times pressure... A wide, supple tire, the Bon Jon Pass with the regular tan casing... According to recently sold ebay auctions tire volume multiplied by the tire cross-sectional diameter ( 23 42... Panaracer makes the tires are lower than I am not an expert on them all an option to consider you...

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