A special feature called a rear brake cable, for carrying the bike? Cyclocross bikes have cantilever brakes only; they have two sets of levers on the handlebars to allow intensive braking with hands on the tops not needed on a road bike. A rear brake cable is the cable that operates the rear brake, almost all bikes have them. That means the cable has to run atop the top tube, on its side, or through it; it used to be quite common to run the cable underneath the top tube on road bikes.
Another distinctive feature is the lack of any protruding parts in the main triangle as those could snag clothing while dismounted. The bike is slightly longer as a result of the frame clearances and the riding position tends to be slightly more upright. A road bike, on the other hand, is optimized for paved surfaces and has tighter clearances to keep the frame from lateral flex without increasing weight. Nowadays most components are optimized for aerodynamics, the majority made of carbon fiber composites, as they are much less likely to get hit by debris.
That bit about 23mm tyres is outdated — today the pros use 25s, and frames with clearance for 23s only were very rare even in the steel era when chainstays had to be as short as possible. The riding position is not much lower and more aero on road bikes compared to CX bikes, as road races usually take much longer and comfort is very important. Name required.
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Cancel Reply. A cyclocross bike is a specific form of drop-bar bike that is built to tackle the popular racing discipline that is cyclocross. Built to race on courses that often traverse muddy fields, grass or sometimes sand, the bikes feature many differences from regular road bikes.
Cyclocross bike frames will use geometry that is optimised around navigating the technical courses these bikes are designed to tackle. Muddy courses call for knobbly tyres and plenty of mud clearance at the frame and fork. Technologies previously reserved for mountain bikes such as disc brakes and tubeless tyres are increasingly becoming the norm for CX bikes. Many but not all cyclocross bikes will include the mounts and fixtures necessary to fit racks and mudguards too.
Although similar on the surface, cyclocross bikes are not to be confused with gravel bikes. They make great commuters with a comfortable, relatively upright riding position and wheels and tyres designed to take a beating.
The rack, fender and pannier mounts, and their ability to tackle varied terrain, also mean they make for great touring rigs too. But it does include far more long stretches of road that will have the rider traveling at higher speeds for longer durations. As such, a gravel bike will be much more stable than a cyclocross bike, thanks to its longer wheelbase, longer chainstays, and lower bottom bracket height.
And again, because gravel bikes are generally designed for versatility and comfort over the course of an all-day riding adventure, a gravel bike will generally have a taller stack height to allow for a more upright riding position.
A cyclocross race typically lasts between 30 and 90 minutes, and is ridden at very high intensity. These include things like a flat tire repair kit, nutrition products, and superfluous hydration. So a cyclocross bike will eschew storage features that accommodate these items in the pursuit of a lighter chassis and added speed. By contrast, a gravel bike will feature plenty of storage solutions to allow its rider to carry nutrition, hydration, tools, spare tubes, and anything else the rider will need over the course of a long day in the saddle—especially if they find themselves off the beaten path.
Likewise, gravel bikes will often feature mounts for racks and fenders, in order to give it some added versatility for commuting and wet-weather riding. This ensures that during the high-intensity effort of racing, jumps between gears are kept to a minimum in order to ensure smooth and precise shifting, all while allowing the rider to keep his or her pedaling cadence and power consistent.
For 1x drivetrains that is, bikes with a single chainring , expect to see a chainring with 38 to 42 teeth, along with a cassette with a spread, or something similar. The de facto wheel size for cyclocross bikes is c, which is the same as the vast majority of road bikes. Some bike companies offer bikes with the smaller c wheel size to accommodate smaller riders, but this practice has steadily been growing out of fashion as most companies have been able to modernize the geometries of their bikes to allow all riders to utilize c wheels.
In fact, most of your local events most likely will not be UCI-sanctioned, so we strongly recommend checking with your racing league to determine what their rules are when it comes to tire sizes. Regardless of the variety of rules out there for different regions, most bike manufacturers have optimized the performance of their cyclocross bikes around the 33mm standard.
This means that most cyclocross frames will only accept up to a size 33mm tire. Since gravel riding is all about exploration, having fun, and chasing the sunset across all types of terrain imaginable, most gravel bikes have been designed around versatility.
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