The 2023 KOGA WorldTraveller Touring Bike: Tougher and More Capable! Attached Images. Coincidence I was just thinking the same thing as i was looking at the Bontrager 650 thread. This info is pertinent to a potential build. Curious if I can convert it to 27.5 rims. Paul|Mantel. While one manufacturer measures the product on the inside and ends up with 261.95, it may well turn out to be 262.25 when measured on the outside. Never mind the chrome hilights, the wonderful deep purple flamboyant paintwork..you have turned the bike into a travesty of what the designer/framebuilder intended and, Thanks for all your help guys and gals! Im looking to do the same. Christine | Mantel. Since that time, I have done a number of other wheel size conversions, from 650c to 26 inch, and from 700c to 650c. 700C x 35mm = 692mm = 27.5 x 2.1 The manufacturing costs of high-end tires like our Compass tires are too high to make suitable for production bikes, but now that others offer OEM-spec tires in this width, we are seeing many production bikes designed around wide 650B tires. Hope this clarifies things! The bottom bracket will increase in height by about 10mm reducing the stability of the bike very marginally given the higher centre of gravity. I and many other cyclists know the truth: toe overlap is to be avoided if possible as it can set you up to crash when you least expect it. Please let me know ;), I have a 2008 epiphany Ellsworth and recently moved to flat land with lots of paved trails Using it with a Tsunami 27.5 rigid fork. According to Jan, For a 650B x 48mm Switchback Hill, youll need a 70mm bottom bracket drop to achieve the road standard BB height of 265mm. Have the same bike and was hoping it is possible, I have a 2009 Hars Rock and front is close but back brace above wheel is tight!! A lot of bikes are being converted to 27.5 and theres a lot to be said for doing so, but it doesnt use the full potential to be had from a 27.5 wheel. In this case, a 65032 tyre would match your frame geometry much better. First, lets start with the basics. Why is my 261.95 is bigger than 262.125. With a 511% gear range, its even wider than 112 Eagle. Its not an altogether exact science, since the 700 and 650 numbers dont translate. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. I have a 26 MTB with a cheep rock shock fork that is frozen up so my plan is to replace it with a rigid fork and 27.5 tires I think They will fit on the rear because the chain stays arent straight they bow out up near the bottom bracket. And, even if you have a bike designed around 700C x 35-42mm tires, it is still a possibility, but bottom bracket height and tire width clearance might be issues. We took an Advocate Lorax and made the switch. In most cases, these limitations are based on the frame design, dictated by the chainstay/yoke configuration required to accomodate a typical 68mm bottom bracket shell and road drivetrain. Is there another article where these steps are discussed in more detail? Switching the modular dropouts from a 135mm/QR to a 142 x 12mm thru-axle enabled a stiffer and modernized rear end. Fox forks are the only forks compatible with 27.5 inch wheels. Like the others here, Id like to know if I can convert to a larger wheel set. I am new to the sport and still am learning about how I can make my bike better and feel that the larger tires are a good start. How-To: Shimano Cleats, Which Ones Do I Need? Basically buy a new bike (preferably from us) is what I get out of them. A while back I received a hostile diatribe in my comment queue about my Meral 650b conversion. Here is a chart that will help you comparelots of different tyre outer diameters. And yes, this frame had toe overlap with the larger 700c wheels, and it was indeed designed that way something that happens when small and even medium sized frames are built around 700c wheels. These are also known as 26-inch sizes in the USA. or 27.5ers? It will be nice upgrade. Unfortunately, most 700C drop bar cyclocross, gravel, and touring bikes have clearance restrictions well under 45mm. Paul used to offer the long version of a V brake with straight cylindrical arms, and there you could raise the pads to covert a 26" frame to 650b, say, but taking 700c down to 650b wouldn't work too well. Without a huge amount of trickery, like the dropped chainstay that Open and 3T use, you end up with a 650B x 48. That is really exciting!. A bicycle made for 584 mm road tires, on the other hand, may or may not not have clearance for the fat knobbies. Mostly, its the frame, and specifically, its the space available from the inside of the seat stays, chain stays, and fork blades at the point where the tire passes them. I have encountered many frames of all sizes with toe overlap. I wonder if a 27.5 can fit. If you need to buy a frame, buy a disc frame or a complete bike. Choosing a selection results in a full page refresh. Top and bottom 40 mm tire plus the 571 mm rim size again bring you to a 650 mm outside diameter, even though the rim was smaller. Thats a lot! not forgetting the height of the bracket. And, aside from their stylish design, adjustments on the Klamper are the easiest of all the mechanical disc brakes weve tried. I have a Gary Fisher Marlin approx 2001 or 2002 and need new wheels. While many folks will opt for a 2x drivetrain, its hard to disregard the simplicity of a 1x. About 16mm more than the tire width. And for 2.1-2.2 MTB tires? How long a reach you will need will depend on the dimensions of your specific frame and fork. 700C vs 26 Inch Wheels for Bicycle Touring. And, for many riders under 5 feet tall, the smaller diameter of 650B might feel more comfortable. I have a 2010 rocky mountain altitude full.sus carbon frame 26. size). However..he designed the bike around 700c wheels and would be astonished that you have fitted 650B, thereby upsetting all the correct design features that he had used in the frames constructions ie head angle, front end clearance, fork rake and trailall those important features that govern how a bike handles..OH! And, with the quality of older vintage frames, there is an ongoing advantage to taking a vintage frame designed for 700c wheels and converting it to 650b. I have a Santa Cruz blurt 2015 with 26 wheels and wanted to convert to 27.5 just wondering is it possible, Hi Finn, A bigger wheel size makes a small onstacle less of a nuisance then a smaller wheel size. Also, stay tuned for more coverage on the Compass Switchback Hill and WTB Byway tires. Thanks in advance for spreading the word! It is not possible to convert a 2006 Iron Horse Maverick to modern components and a 27.5 wheel set. They were putting 650b and 650c wheelsets on their 26ers so that they could run skinny road tires on them without affecting the bikes geometry. . Leave a comment below. They can also be just as fast as road tires, as proven by Jan Heine in Bicycle Quarterly. The number is the nominal outside diameter of the tire the rim was originally designed for. Hope to have been of help! And theres , The correct saddle height and saddle position are essential for enjoyable and injury free rides on your road bike. one, however, will be built to order (but cost no extra because of it). Thefork trail will increase a little bit, slowing the steering response down a tad. "five" actually is supposed to mean "point five." If brakes arent an issue, the next most obvious consideration is whether or not your bike has the proper clearance for big 650B tires. It is all going to depend on the outer diameter of your tyre. Pleased? There are 4 "650_" sizes in between these two extremes. Interested in converting a 700C cyclocross or touring bike into a 650B gravel bikepacking rig? 700C x 38mm = 698mm = 27.5 x 2.25, Generally speaking, the main reason folks are making the switch to 650B is to have wider tires, but thats just one part of the equation. 12. You need to leave some save clearance as well, mud and dirt can be a problem if there is not enough space. So what you have managed to do is to take a delightful frame that was intended for fast road riding ie sportif use, and try to turn it into a type of randonneurwhich it was never designed from the box of frame tubes , lugs etc to be. Its the width that can be a challenge. Just how long of a reach youll need and whether you can even use your existing centermount or post mounts will depend on the dimensions of your specific frame and fork. I wanna convert either to 6560b or 27in. Your email address will not be published. The best way to check that is to go by a workshop to check it. Hi all, I recently was given a 2004 Ellsworth isis (I know different times) and love how it rides but am looking to upgrade the forks. Ask any smaller rider and youll get a very different perspective. Hi Nola, I own a 753 Meral racing bicycle from 82. I have carrera vengeance 26 wheel. We and our partners use cookies to Store and/or access information on a device. However, there is a dedicated group of fans of this wheel size, who have been diligently working to restore it to its former glory. Id challenge anyone to notice a significant difference in your speed from making this switch. Its meant to take a 650b but is that front and rear? Does anyone know if rim brakes will work on a 650b conversion? Ill rather invest in upgrading it. They have a super long adjustment area. Hope your leg is better. I have a 2012 26 Scott Scale 80, does anyone knows if the convention works well in this bike? I didnt see the one I have on the list. I stock them (165s) in just about everything I carry, and sell maybe two per year, total, vs. dozens of the other sizes. I dunno if its possible but Im hoping someone may have some advice. Im wondering if its possible with the Frame. Before the current trend of new 650B production drop-bar bikes, 650B was largely relegated to small frame builders, randonneuring enthusiasts, tinkerers, and folks interested in converting older road bikes to get some of the big tire secret sauce. Hunt also has wider wheelsets that might be a little better for 48-2.2 tires. I have a 2013 Specialized Enduro Evo (26er) I know the newer versions of this bike come standard with 27.5 or 29ers, but I am not sure if that was a frame modification from the factory, or if there is enough room on my model year to make the conversion. If so, you can run Paul Motolite V-brakes and they will allow you plenty of adjustment for the height of the pads. If you could contact us through our customer service and provide us with a few more details and/or images, we may be able to help you even better. Most drop-bar bikes with bigger tires will have a little toe overlap, but there is definitely a point at which it can become a burden. The best way to find out if it will be possible, is to hop in a local bike shop. I would like to update the tyres on the bike too 27.5 from 26 .. is this possible? Giant xtc 1, hardtail disc brakes (2009). Thanks, Greg. There is a snag though: your bike needs to be able to fit the larger wheels. But unfortunately, I think the local bike shops were right. Most disturbing about this rant is the ridiculous concept that style trumps comfort when setting up a bike for a particular rider. Do You Need One? PSA: Box Components v-brakes have enough adjustment to run 650b wheels on your old 26er frame. I came across a 2009 Trek 4300 for a pretty good deal ($20) that needs some tlc and was curious if doing this conversion is difficult and is it worth doing so. It was built with Vitus 788 tubing around a set of narrow, 700c rims. Several 700C bike models, such as the Marin Four Corners, switch to 650B for their smaller sizes to maintain proportional geometry. But, much of the draw of 650B is that it enables the use of wide tires while maintaining a smaller and more manageable tire diameter. Enthusiastic trail runner and mountain biker. Hey Paulo. Looking for something of the quality of Hemisphere kevlar tires but with a smaller cross section to cut rolling weight. Your email address will not be published. Kind regards, and happy (almost) new year! Thanks ! 650B conversion. Some frames may have forks or rear stays that are too narrow to permit the use of wider 584 tires, but most often this won't be a problem, since the stays and fork blades get wider apart as they head toward the hubs. That would be _________mm. There are some cheap rotors, and brake calipers out there. Also I know this is different but how do i know weather to get a straight or tapered steerer for my bike, do they all fit any bike? The tiny potential difference in the frame geometry is well within the variation seen by using different tires, tire pressures, weight, maybe types of headsets, or the real terrain you will see in the real world. Pitbull bmx brakes might be able to reach.