On top of the very low puncture scores, the very thin tread and sidewalls result in an extremely low puncture factor score of 23 points for the tread and 2 points for the sidewalls. Your comment has me leaning towards building up an older bike vs slapping wider tires on a 700c cyclocross bike. How Wide is too Wide? 700cx23 to 100psi Most new frames are at 130 (“road”) or 135 (“mountain” or “touring”) mm. By amount, I mean number of molecules of air. 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. When you design a product, develop it, test it and finally bring it to market, you wonder how it will be received. Now, he’s decided to produce their own under the Compass … The tires come in sizes from 26”x2.3 at the fat end and slim down to the narrowest offering at 700x26c, with a large variety of sizes in between, including a line of 650b tires. Mike and I were reminiscing this morning about when we used to get virtually yelled at for pointing out that a rim's inner width was the only thing that mattered for tire ride interaction (yes we know aerodynamics is a separate issue), and that ideal inflation pressure for a given tire … Boyle’s law says the volume of air times the pressure is proportional to the amount of air in the tube. 650B x 42 mm Babyshoe Pass Extra Light tire 3 In one of the reviews, they mentioned how many pump strokes it took to pump up the Barlow Pass. 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. Sometimes I get comments from readers telling me I'm still living in the 70's because my graphs show rolling resistance to be lower at higher air pressures and people now run lower pressures. You can see it here: http://bikingtoplay.blogspot.com/2014/12/trek-620-650b-conversion.html. 4. I’ve had “zero” flats on that size in over 20,000 miles; I had one, but it was after I had some work done at the LBS, and they inflated my tire to sidewall pressure (over 60PSI) and I’m 110% certain that flat was easily avoidable at a lower pressure. Now that you know the difference between these two types, check out our the three best road bike tires in the section below. I’ve read nearly every Off The Beaten Path post with great interest, and I’m sold on wide, supple tires for a versatile-yet-fast bike I hope to ride a few dozen miles a week for ten years. Should I buy an old road bike, swap to 650b’s, cantilever brakes, and Compass tires? Most of Compass tires come in … Riders who prefer skinny tires have plenty of options when it comes to high-performance rubber. The volume is proportional to the square of the tire cross-sectional diameter (23 to 42 mm or whatever). Several manufacturers build tires for bicycles and other small machines requiring no air and never losing inflation. 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. Curbside Pickup Available NOW! The Compass Cycles Barlow Pass tyre is a tubeless-compatible (TC), ultra-supple tyre that delivers an astonishingly smooth and grippy ride. Rene Herse tires roll fast and absorb vibrations. Price: $9.99 Orienteering Compass - Hiking Backpacking Compass - Advanced Scout Compass for Camping and Navigation - Boy Scout Compass for Kids - Professional Field Compass … If you continue to use this site we will assume that you are happy with it. Your other best avenue is to find a Rawland rSogn, Stag, or Nordavinden–they came with light tubing and low trail geo. I think I will choose my tires some other way! Don't forget to take a look at the overview pages to make it easier to compare all bicycle tires that have been tested: Weight. 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) RATING: Dash bike- dapu M65X Updated: 2 months ago ... spoked the wheels with thick 13 gauge wire and chose extra wide 2.4″ tires for comfort, traction, and stability. 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’m sure many readers are better at physics than I am, so please correct me if I’m wrong. 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. As my experience has been that the casing thickness doesn't make a huge difference in the rolling resistance tests and the 35 mm Bon Jon Pass fits the Touring bike category, I feel the regular casing is the best fit here. What’s the best way to build up a Compass Tire bike on a budget? ... (103) 103 reviews with an average … 40PSI is great and is all the puncture protection I seem to need. And you don’t need to ride on gravel or rough roads to appreciate the comfort and performance of wide, supple tires. Performance increase was immediate, as was comfort. Perhaps even more gratifying are independent reviews. 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. “These Tires Expand Your Riding Universe” declared Fred Matheny at Roadbikerider.com after riding the 700C x 38 mm Barlow Pass Extralight tires. Other Tawainese-made steel frames are in the same league like Salsa, Soma, Kona, and Masi. “As good as the standard Stampede Pass versions are, the extralights are in a completely different league. If your bike can't fit them, maybe you need a new bike. Tyres with diameters between 622 and 635 mm are both labelled 28″. 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). All rolling resistance tests are performed on our rolling resistance test machine. I was just deciding between two of my slightly older (late ’70s) Treks for exactly that conversion, although now I’m wondering if they can handle the soon-to-be-available 26″ X 2.2″ Rat Trap Pass tires. This video is about Compass Bicycle Tires a Year in Review – part 2. And they don’t really cost any more than other brands of high-performance tires. Panaracer RiBMo PT Tire. Over the past couple of years, I've received an … If I could get one for under $500, I would go that route. There is little disadvantage to doing so and you’ll benefit from the improved ride quality and traction in corners. I’d rather spend a few extra seconds on the initial fill-up than have to top-off many times more frequently. I had a bit of trouble mounting these tires on my Alex rims. I am waiting for the new 700-35 and hope to ride them for PBP, That would be like determining how many licks it takes to get to the center of a Charms Blow Pop. Tire volume was calculated using a perfect torus, and I used an online ideal gas law calculator for the hard math parts. However, the Bon Jon Pass tires have been a … Jon. So when Compass came out with their 26"x2.3" Rat Trap Pass tires I was excited to try them out on my Surly Disc Trucker. I’ll probably put those same Barlow Pass tires on it. As for pumps for these wider tyres, I think we need new designs. I’ll probably break with the crowd here and go with the Big Squeeze canti’s from Rodriguez; they’re great on my tandem and R+E’s frame building and repair prices are very reasonable for the post addition. The wide tire revolution is catching on in Europe as well, so I think there is a market…. 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. Plush doesn’t even begin to describe how the extralights ride. Jon, (From Compass staff) But they still left hanging the question: How wide can you go? That comes to $625. According to my calculations: I’m not sure what the ratio of pressure, size and pump strokes to full are exactly, but one thing I can say is that every pound of inflation above atmospheric pressure seems to have a non-linear correlation to pressure loss over time. That’s a helpful answer; thanks. I’m still amazed that after thousands of km within Sydney that the Barlow Pass don’t even have a cut in them let alone had a puncture. Tread Depth. Recently, there have been two reviews of our Compass tires. On my 17C rim, inflated to an air pressure of 60 psi / 4.1 bars, the Bon Jon Pass measured exactly 35 mm wide. The rest of the roads are shared with people that throw bottles from vehicles and intersections with the typical amount of glass from motor vehicle incidents. I’ve been continuing my voyage through the wide-rubber-specialists Compass … The 700x35c rated Bon Jon Pass with the regular casing has a specified weight of 355 grams. 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. In the puncture resistance tests, the Bon Jon Pass waves a white flag as it performs terribly here. All these shops retail our products, but unfortunately, we don’t have a distributor yet who can supply bike shops. Like all tires, they have their limitations, but they perform … Please look at the charts below to see how it compares to the competition. Tyres James Raison September 06, 2017 Compass Bicycles, Compass tyres, tyre, Compass 8 Comments. Does anyone have suggestions for how to build such a bike for under $1000? Developing new tires takes a large amount of time, effort and money. Compass Bicycle Tires a Year in Review - Part 2 - Duration: 8:38. Compass is a tire brand that specializes in "supple tires" that ride like high-end tubular tires but come with the ease of use of clincher tires. 2. Thank you for your excellent blog. Can you give me a rough breakdown on how much you paid for different pieces to get to a $650 investment? 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. 650bx42 to 50psi 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. / 5 Panaracer makes the tires for Compass so construction is solid. With all the strife and turmoil we see around us from time to time, it’s good to remember that good things come out of our labors too! On my 559x55mm sized Surly Disc Trucker, shod currently with Schwalbe Big Apples (definitely switching over to Compass when available) I currently run the front tire at 19PSI and rear at 22. In case it matters, I weigh 68 kg (150 lbs). Tread depth is virtually non-existent at 0.3 mm. page to read in detail about how we test bicycle tires. Interested, Being full of hot air, I wanted to take a shot at Jan’s question. On my Nordavinden with 622x32mm Compass tires, inflated to around 3x the pressure of my Trucker, it loses pressure much more rapidly. Those might not be “real” numbers, but they were all calculated the same way so at least they may be useful for comparison. wider is better)? Even in the road bike section, the Bon Jon Pass would put up a terrible performance. Don’t ride in big pacelines and stay out in the road as much as is safe. Edwin. (I've only ridden the extra light versions). In the sidewall puncture test, it performs awfully as well with a score of just 3 points (basically the lowest possible score). For example, tire diameters of 559 mm (MTB), 571 mm (triathlon) and 590 mm (Dutch touring bikes) are all labelled 26″. Here is a specific instance: Plus my experience is that under 25PSI on 559x55mm tires is basically ‘un-flattable’. Most people that asked me to test this tire really wanted to know how it performs in the rolling resistance tests. Thanks to Seattle’s Compass Bicycles, fans of wide tires don’t have to sacrifice width for performance. Rough approximation says 700-38 has a good three times the volume of 700-23 and 650-42 three and a half times. Should I build from scratch with a new groupset and a bunch of cheap Nashbar components? Your tires are truly great. Something new for the Specialized AWOL x Poler: Swapped 29″ x 1.9″ Specialized Ground Control tires for the 700c x 44mm Compass Gravel Tires for raw speed with wide supple comfort. Schwalbe SV14A tube Is there a rule of thumb which of your tires work best for whom? TEST VERDICT: So far, no punctures. Best flat protection? “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.” 100% Satisfaction Guarantee. Because that is why we made them in the first place: So we and others could enjoy riding our bikes even more! Good luck. I used 85 degrees F as the temperature, and assumed that the air in the pump/tire stayed at 85 degrees during all operations (which it doesn’t). 200 easy strokes from flat to about 40psi. I understand the benefits vary with the type of road surface and with rider weight. 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). Cheap wheels off ebay: $140 I ride over glass strewn roads everyday and I have not had a problem even so one of the roads I travel is used by glass recycling trucks with their loosely covered loads. 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. 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). 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. PLPTalks - Jan Heine - Bicycle Quarterly / Compass Bicycles - Duration: 39:20. Often, last year’s model or components group on sale is a good deal. On my loaded tourer I have been using such fat tyres for years, and my solution has been to only use the frame pump for the first – minimally necessary – amount of air, and then head for the nearest gas station. 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. By the way For those doing occasional forays onto dirt road connectors, look to the lower end of this scale. 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. Mark Chandler at the Gravelbike blog tested both the Stampede Pass and Barlow Pass tires. Compass tires: $130 I should also say that my brakes are set up so that the pads start touching the rims when the levers are halfway actuated (not a “hair trigger” setup) so my setup is already biased towards more tire clearance from the brake pads. 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. 700cx23 28 strokes My sample comes in a bit lighter at 346 grams which is always a nice bonus when buying an expensive tire. Had not seen this, when I wrote my reply above at a later time, but my calculations were not totally crazy then. The tires … You may have more and more people asking these questions as the wide-tire revolution trickles down to the masses. 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? James – At the end of the stroke, there is some residual air in the pump, essentially whatever space is between the plunger and the tire. niko, I agree, and if any European dealers or distributors read this and are interested, please get in touch. The tubed Compass tires ride wonderfully. Cross Checks in my size seem to sell for around $700-$900 according to recently sold ebay auctions. Once the Compass 559x55mm tires are available, if they indeed end up being comparable in speed to 650bx42mm or 700cx32mm tires, I’ll likely make my next brevet bike in that size, for the extra comfort, stronger wheels, much greater flat resistance, and less need for topping off the air. 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. Congrats on the great reviews! Should I buy a Bikes Direct cyclocross bike and pop on 700x38s? At the moment I am thinking of going for the Compass Loup Loup Pass EL (650B x 38 mm) or even Grand Bois Cyprès EL (650B x 32 mm), but would I benefit from Compass Babyshoe Pass (650B x 42 mm) tires with my riding? Michelin Lithion 2 Road Tire. 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)? Our allroad tires have … That’s an option to consider if you want to avoid deflating the tire. Compass Bon Jon Pass tyres review. Any interested airologist can submit their data, although I doubt we’ll be able to check and verify any time soon. It would be very nice if there were dealers, or even online places in europe. Coincidentally, my frames are the same size as yours. Recently, there have been two reviews of our Compass tires. Old favourites like the Zefal HPX were designed to inflate narrow tyres to high pressures. I think this simple explanation is probably thrown off by the dead space of the pump. The tires are not quite as slender as a road bike but not like most hybrid bikes either. Recommended, Tubolito inner tube rolling resistance tests, Rolling resistance comparison of 32, 37, 40 and 47 mm Schwalbe Marathons, Overview page with all touring bike tires that have been tested, G-One Speed Super Ground V-Guard SpeedGrip. New ones come in a little over your $1K mark, but are still a good value. Thanks for developing these wonderful tires. From somebody as experienced as him – he has been testing bikes … These tires will … Air Free, a manufacturer of such tires, guarantees such tires never go flat -- a hollow guarantee as such tires … 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. 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. Changing to 650B will cost you for new wheels and probably new, longer-reach brakes. Over the past couple of years, I've received an incredible amount of messages from readers asking me to test Compass tires. If you’re committed to that size, you want to know in advance that it’ll work. 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. Their tread grips supremely, both in wet and dry conditions. Nothing but rave reviews from both my customers who’ve tried them, and myself; I’m running Stampede Pass 32’s on my rando bike and 650b 38mm on my Blériot bike which is a tank! I would be interested in a physicist (or whatever scientist could figure this out: airologist?) I am very happy for you and congratulations! We use cookies to ensure that we give you the best experience on our website. I've opted to test the Bon Jon Pass with the regular tan colored casing. Long reach brakes: $55 “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. There are also some brake levers with built-in QRs that allow the brakes to open even wider. Anyway, that’s what I did. Of course, you are confident that others will like it as much as you do – you wouldn’t have released it if it didn’t meet your high expectations. So double the volume or double the pressure is double the air. Robert – It seems like I’d spend nearly half of that on wheels and tires, which doesn’t leave much room for a modern groupset. * Puncture Factor = Puncture Resistance * Total Tire Thickness. Should I allocate most of my budget to the frame? Compass claims their tires are some of the fastest rolling tires in real-life thanks to the supple casing. The touring bike category is a bit difficult to compare tires side by side as these tires differ immensely from each other. There is also M-Gineering in the Netherlands. Henrywildeberry 2,752 views. It’s satisfying that riders and reviewers enjoy them as much as we do. This leads me to believe the rough approximation is not all wrong. 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. 03-02-2019 #5 With these tires … Our general rule of thumb is: use the widest tire your bike will safely fit. 700cx38 to 60 psi this is the main reason i still haven’t bought a set of your remarkable tires. Veloform in Gothenburg, Sweden import and selling Grand Bois, Compass Tires, and also selling another parts from Compass, and books from BQ. Grip for HBR but there is enough pavement that an MTB tire feels super sluggish tires may want to in. A 5 rating would be very nice if there were dealers, or even online places in europe well... I wrote my reply above at a later time, but my calculations were not totally crazy.! Bit difficult to compare tires side by side as these tires on it last model. 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