The same goes for the rear there needs to be sufficient height clearance in the rear triangle for the wheels to spin freely. Hi Aldrin, your frame could handle the change but the fork can t I m afraid! What fork you have at the moment? The new Shimano CX brakes work great, Velocity Synergy rims. Hello , i have a Specialized s works Enduro sl 2008 or 9 i dont really know now,. HI Shaun, Unfortunately the Norco is not suited for the wheel change! 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. In addition, smaller rims and wheels mean less metal was used to make the rims and spokes, which should translate to a lighter wheel. A bigger wheel size makes a small onstacle less of a nuisance then a smaller wheel size. Kind regards, and happy (almost) new year! There are a few other inherent advantages to moving from 700C to 650B. Basically buy a new bike (preferably from us) is what I get out of them. This resulted in a greater availability of high-quality slick tyres in the latter sizes. Peugeot PX 50.jpg (16.7 KB, 3999 views) Reply. I've had a long and interesting relationship with this early 1980's Meral Sportif. The nutter was just plain wrong, in so many ways.. If thats what you got, you have three options: Use the same hubs, have a new hub made to those old dimensions, or spread your frame to 130mm or 135mm, which is about a $50 medium-risk job at a competent bike shop. Looking for something of the quality of Hemisphere kevlar tires but with a smaller cross section to cut rolling weight. They have a super long adjustment area. 650B (584 mm) Conversions for Road Bikes - Sheldon Brown , Voorkeurstaal / Preferred language / Langue de prfrence. Shorter cranks means a taller seat post, which in turn means a taller stem. The world did not stop spinning due to my audacious acts. Good question! There is still plenty of 26 tire availability. La horquilla es una Fox. To be sure your specific bike can make the conversion I would just pop by a local mechanic if you are in doubt and new to this. Anything lower might start being risky when it comes to pedal clearance. Absolutely correct. Driven by aficionados of the classic French style bikes and gravel brevet enthusiasts, tire options started popping up. And howzabout fenders? Thx. Heavier riders use higher pressure, lighter riders lower pressure. 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. The absence of a letter indicated a narrow tire; "A", "B" and "C" indicated increasingly wider tires. Last summer I built up an early 70s Japanese made Crystal road bike project that I purchased from a hoarders stash missing one of its wheels to resell. In ths BB drop regard, the ideal staring dimension is about 63mm to 68mm. Will a 700c or a 27.5 wheel fit my bike? Rear wheel clearance. Fox forks are the only forks compatible with 27.5 inch wheels. The larger the obstacle, the larger the advantage of a 29 inch wheel gets. Some people adapt well to a small amount of overlap, but ideally there should be none. The Bikepacking Journal is our biannual printed publication. Its the width that can be a challenge. First, there is the example of your Meral. The Velo ORANGE Blog: Converting From 26" to 650b Coincidence I was just thinking the same thing as i was looking at the Bontrager 650 thread. Manage Settings Cheers! She has 26 wheels. To establish the required brake reach, measure the reach with the original 700C wheels and add 19mm. Are there V-break with longer arms to support to conversion from 26 to 27.5? Many bicycles from the 1970s on have way too high bottom brackets to begin with, so lowering the bottom bracket a bit will improve the bikes handling and cause no negative side effects. For one, shorter spoke lengths make stronger wheels. With the recent flood of 650B gravel/adventure bikes coming to market, and 47-50mm road plus tires surging in popularity, you might be interested in purchasing a new 650B rig or converting the 700C bike you already have. The favorable 650B x 47/48mm tires, made popular by the 48mm Compass Switchback Hill and 47mm WTB Byway, have a similar tire diameter to 70028 wheels and tires. I believe your frame should be okay, but Im not too sure if your fork is compatible. It also lowers the top tube, possibly making a bike safely usable for a shorter rider than would otherwise fit it, due to lack of standover clearance. I spammed the comment, but then thought it was potentially illustrative, albeit rude and obnoxious. They also include tubeless tape and valves, spare spokes, and a spoke key, all for about $445 USD. If your bike has disc brakes, youre golden. one, however, will be built to order (but cost no extra because of it). It means that the brakes need to be able to reach 12.5mm higher on 650b rims than on 26". The angle a 29 inch-wheel needs to overcome in order to get over an obstacle is smaller than the angle required by its 26 inch counterpart. Im trying to see if a 27.5 wheel would fit in the fork. I consulted Sheldon Browns 650B conversion guide, as well as resources available from many other cyclists, mechanics, and frame builders. Your Meral is stunning. As tire size goes up, so does gearing. For shorter riders, the use of 650B has much to do with bike fit. Thank you for your question. Many thanks for a reply. How curious, why do people even read blogs or articles about things they dont agree with or have any interest in? Your Meral is one of the most beautiful and well proportioned looking steel restorations Ive ever seen (if you ever decide to sell it). So we learned that this was a good size. You will get better results from simply fitting the fattest 26 tyre you can get away with and maybe converting your rims to tubeless. I would leave the 26 tire on the rear. Thats where 650B saves the day.