Zoom Suspension Seat Post - Black, 31.6x350 mm

Product Information

Every brand seems to have its own take on the saddle clamp design, which usually includes a bolt at the front of the head and another at the rear, although some have just one bolt. The longer seatpost length of mountain bikes means rigidity and robustness are important, whereas with the shorter seatposts on road bikes, compliance and ride comfort are greater priorities. 34.9mm seatpost It’s usually made of metal, even in a seatpost with a carbon shaft, although some carbon seatposts are one-piece and include a carbon head.

As with all aerodynamic upgrades in cycling, it is a culmination of marginal gains that will start to make noticeable differences to your riding. So, yes, seatposts can make a difference but, in most cases, aero seatposts will come in a proprietary design to fit a specific bike, making upgrade options considerably limited. Do carbon seatposts make a difference? You want a seatpost long enough for your height needs on your bike. A seatpost that’s too short can’t can’t be made longer. A seatpost that’s too long, on the other hand, can be cut to be made shorter. Suspension or Damping A shim should work fine with a standard seatpost clamp that attaches around the outside of the bike’s seat tube, but it might not work properly to hold your seatpost in place without it slipping if you’ve got a more complex clamp design. If you want to fit a thinner seatpost to your bike, you can buy shims that fit between the frame tubing and the seatpost. You can’t fit a wider seatpost than that your bike is designed for.If it has a round seatpost, however, you are likely to have far more options – but diameter becomes all-important. The two standard diameters are 27.2mm and 31.6mm and all of the seatposts featured in the guide will fit one of those two sizes, while some have more options in between. left), 30.9mm (middle) and 31.6mm (right) seatpost diameters are most common. Kaden Gardener / Our Media In short, no. Seatposts are an area where bike manufacturers seek to make gains in weight, aerodynamics and comfort – so there are a whole range of different types that come with different bikes. One of the most important considerations when buying your next seatpost, is the diameter of the seat post - and how this diameter works with your bike frame. The diameter must fit the internal diameter of your frame - which is typically 27.2mm on a standard frame, or either 30.9mm or 31.6mm on an oversized frame. For a dropper post to work, there needs to be sufficient space in the frame’s seat tube. This is particularly an issue with smaller frame sizes, which often have shorter-travel dropper posts as a result.

Finance is subject to application, financial circumstances and borrowing history. Performance Cycling Limited FRN: 720557 trading as Tredz are authorised and regulated by the Financial Conduct Authority. We are a credit broker not a lender – credit is subject to status and affordability and is provided by Mitsubishi HC Capital UK PLC. Terms & Conditions Apply.The Twin Link clamp uses two bolts with expanding wedges to adjust saddle angle and is easily accessible from the sides below the rails. Part of the Enve Road range with the Enve Road bar and stem, it's unsurprisingly top-level componentry with a top-level price to boot. The most common size on modern road bikes and gravel bikes is 27.2mm. These posts can be found on some MTBs too, although the size is confined mainly to a limited number of cross-country mountain bikes. A wider-diameter seatpost offers, in theory, improved durability over an equivalent seatpost in a narrower diameter. Some bikes even go as narrow as 25.4mm, Cannondale being a case in point. A skinnier post will provide a bit more flex, and therefore a slightly more comfortable ride, while a fatter one will be more robust and add stiffness for additional power transfer. Road and gravel bikes tend to have a longer seat tube than mountain bikes, so usually requirer a shorter post of around 300 to 350mm. Mountain bikes typically leave more of the seatpost exposed above the frame, so require a longer post.

Seatpost length ranges anywhere from around 75mm to more than 400mm, though most posts come in lengths between 300mm and 400mm. Most saddles have round rails, whereas some have oval rails. You may need a seatpost with a clamp design that’s deeper to accommodate oval rails. An older standard popular on road bikes, 31.6mm seatposts have mostly been superseded by 27.2mm-diameter posts. They’re still found on some road bikes and many mountain bikes though. Best Lightweight Gravel/Road Dropper: FOX Racing Shox Transfer SL 27.2 Performance Elite Dropper SeatpostRound seatposts come in several different diameters, to fit in different-sized seat tubes. If you’re changing your seatpost, make sure the post you’re replacing it with is the correct diameter. Mountain bikes typically have a lower standover height than road bikes, leaving more of the post exposed, so a wider post is preferred to improve strength. 31.6mm seatpost The introduction of carbon to bike manufacturing was a game changer for seatposts. Not only can it help to reduce the overall weight of the bike, but the way in which carbon components are manufactured – by building up layers of fibres –can be adjusted to give it the perfect blend of compliance and stiffness. From damping to deflection, the best carbon seatposts can help soften vibrations and take the edge off impacts. Most dropper posts enable you to lower your saddle by between 125mm and 170mm, while outliers start at 100mm and go as high as 210mm. Like handlebars, wheels, and nearly all other bike components, seatposts come in a variety of materials, the most common being aluminium and carbon fibre. As always, carbon commands a higher price tag, but it usually weighs less and can be constructed in a way that dampens more vibration while maintaining directional stiffness in a way that will benefit the rider.