Transmisiones para GRAVEL: monoplato o doble plato? 😍 BIKEPACKING | Javier Bañón Izu

Single chainring Single chainring, who is it for?... Generally for gravel riders looking for mechanical simplicity and a bit more lightness, but there's usually only a 250-gram difference between a double and a single chainring... So I don't think it should be a differentiating factor. It's true that frames designed exclusively for a single chainring offer greater stiffness in the bottom bracket and more tire clearance between the seatstays and especially the chainstays, near the bottom bracket axle. So if we're thinking of running 45mm tires on 700c wheels or around 50mm or more on 650b wheels, it might be the right choice for us. Single-chainring drivetrains generally require better physical fitness, especially 11-speed setups, although 12-speed and even 13-speed drivetrains also require some adjustment. While they offer fewer jumps between gears and even reach the point of inertia sooner, particularly with 650b tires, they are generally the most expensive drivetrains from each brand, considering leading brands like Shimano, SRAM, Campagnolo, or ROTOR. Double chainrings Those of you coming from road cycling will greatly appreciate the versatility and affordability of 11-speed double-chainring drivetrains. For example, with 46/30 chainrings and a 10-40 cassette, a gravel bike offers tremendous capabilities for tackling very rough terrain with significant elevation changes, while also providing ample power for flat terrain and even long stretches of road. Even with a road wheelset, we could have one bike at home instead of three (MTB, road, and gravel), which would be very useful for those who don't have much space or who don't want to maintain three bikes but only one. As disadvantages, you have to be careful with chain crossings, chain drops which are somewhat more frequent on rough terrain (but still not common), less ground clearance in the bottom bracket area on rocky sections or steep roots... And perhaps, aesthetically, they are less attractive, but that's something I think we should overlook since the important thing is that they fit our gravel riding style. Chainrings On a single-chainring gravel bike, it's common to use 38, 40, or 42-tooth chainrings depending on how we're going to use the bike, as well as the rear derailleur and its gear ratio. But to give you an idea of ​​its strength, even with a 12-speed... Pro MTB riders typically use around 38 teeth for UCI circuits... So, even with a 50, 51, or 52-tooth cassette, it's going to be much harder to shift than your usual MTB groupset with a more manageable 30, 32, or 34-tooth chainring, which is what a standard MTB usually has. As for double chainrings, each brand has its own way of interpreting gravel riding and offers different chainring combinations. For all-around use, I've found that a good combination could be a 46/30 for tackling everything from very rough terrain to fairly flat areas... But there are more, many more options. The gravel double chainring actually evolved from the 50/34 subcompact road chainring and the 46/36 cyclocross chainring, offering a wider range whether you're riding on varied terrain or carrying extra weight with bikepacking bags. Single Chainring If we're going to use a single chainring, I think the best option is to use 12- or 13-speed cassettes, although many gravel bikes come with a single chainring and an 11-speed cassette. I believe that for versatile gravel riding, 11 speeds paired with a 42 or 40-tooth chainring require a pretty strong rider, especially if we're tackling rough terrain, not to mention the gear ratio jumps on some cassettes. Another option is to combine a single chainring drivetrain with the Classified system with an added hub derailleur, which I've already shown you here on the channel. But for that, you have to make an additional investment of approximately €2,000. I think single chainring drivetrains have a lot of potential, but I'm also objective and believe they need to start offering truly significant improvements that go beyond just the aesthetic finish, which is the main novelty of each drivetrain brand. Double Chainring In the case of double chainrings, 9, 10, and 11-speed drivetrains offer performance at affordable prices and great versatility. An 11-speed drivetrain, in particular, offers a wide gear range to cover all types of rides, from confidently tackling road cycling to gravel rides on technical and even very steep terrain. All this without having to rack your brain trying to choose the right groupset and, more importantly, without breaking the bank on the latest single-chainring drivetrain. BGRAVEL.BIKE website channel GRAVEL, BIKEPACKING, BIKE TOURING, BIKE ADVENTURE, MOUNTAIN BIKE, CYCLING Buy the BIKEPACKING MANUAL: https://amzn.to/366x6HI