Mixed Wheel Sizes Aren’t Just for the Pros Anymore

Mixed Wheel Sizes Aren't Just for the Pros Anymore

It’s been lower than a 12 months since we introduced you information of a brand new Specialised Demo. July 2019 was when the 29-inch DH race bike and its fascinating linkage first owned as much as its spy images. However famously, a lot of these spy images had been taken of Loic Bruni, who was using the Demo with a 27.5-inch wheel within the rear and a 29-inch up entrance. We’ve seen a number of riders and some manufacturers be part of the mixed-wheel membership, however as we concluded once we mentioned the pattern, you’re not getting the entire profit until the body itself is true for it. So, not fairly a whole rebuild, the brand new Specialised Demo takes a purpose-built method to mixing wheel sizes, however with a twist.

specialized demo
Picture: Courtesy of Specilaized Bikes/BIKE Journal

The brand new Demo will work with both 27.5- or 29-inch wheels, and has a flip chip within the dropout pivot to optimize the bike’s geometry to swimsuit both. Just like the setup used on the Daring Cycles Unplugged, swapping the flip chip will concurrently lengthen the rear-center to make room for the bigger wheel and drop the underside bracket to maintain the geometry regular. In reality, there are three positions, with the longer one being 29-specific and the shorter being 27.5-specific, however the center setting being suitable with both. 27.5 followers who need extra stability or 29 followers who need extra maneuverability. This picture is a bit darkish, however you possibly can see the flip chip in its shortest setting right here.

specialized demo
Picture: Courtesy of Specilaized Bikes/BIKE Journal

It’s why this geometry chart is taller than it’s huge. Plenty of mixtures to take into consideration. For probably the most half, the 29-inch configuration didn’t change a lot from the earlier Demo 29. Chainstays acquired a pair millimeters shorter, head angle steepened by 0.1 levels, and attain shortened by a millimeter. The linkage remains to be the moderately revolutionary design that revamped the Enduro into presumably one of the best bike made in 2020, or not less than Ryan Palmer thought so when he selected it for his Dream Construct. Actually, particulars are fairly sparse. We’re unsure whether or not full bikes will probably be obtainable in each rear wheel setups, or what number of value factors there are in every, however we all know that there nonetheless is not any carbon choice obtainable within the Demo, so possibly we’ll once more have extra thrilling information in lower than a 12 months.

This text initially appeared on Bikemag.com and was republished with permission.

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