transformparts Bicycle Bike Layback Seatpost Seat Post 25.4 350mm

£9.9
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transformparts Bicycle Bike Layback Seatpost Seat Post 25.4 350mm

transformparts Bicycle Bike Layback Seatpost Seat Post 25.4 350mm

RRP: £99
Price: £9.9
£9.9 FREE Shipping

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Description

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. Whichever material you go for remember to use the correct grease when installing it into the frame as each requires a different paste to help prevent seizing and damage. Diameter

While the vast majority of standard seatposts are identical in form and function – being hollow aluminium or carbon tubes upon which the saddle is clamped – there are a few essential differences to know about when choosing or replacing a post. Most of the best road bike saddles use a two-rail system, however not all two-rail saddles are compatible with all seatposts. Saddles with alloy rails will have 7mm, round rails, while most carbon-railed saddles have 7x9mm oval rails. A key factor is the diameter of the seat post. This must directly match the internal diameter of the seat tube of your frame. The majority of modern seat posts are 27.2mm, 30.9mm or 31.6mm wide, with the latter often described as oversized.Racers should look for the lightest and stiffest carbon seat post that they can afford. So long as your reach doesn’t get compromised it may be worth trying an inline post too for increased pedalling power – especially on seated climbs.

Rear lights can be a bit of an issue when it comes to an aero post, although many brands now offer adaptors that allow for the shape.

Brand-X LightSKIN Seatpost Light

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. There are a few things to bear in mind when choosing a new seat post so here’s what the differences are and what they mean for you. Alloy posts are relatively light, cheaper and easy to install and maintain but they can be a harsh ride. When it comes to cancelling vibrations, there are several steps brands take to aid this in frame construction: using thin seatstays; placing the seatpost clamp lower down so that more seatpost is exposed (allowing for more flex); and using a narrower seatpost A carbon seatpost is effectively an additional step; a cherry on top. 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.

Though some brands like to play exception to the rule, the majority of bikes are designed to fit a seatpost of either 31.6mm or 27.2mm.

The saddle clamp will be held in place with one or two bolts. Twin bolt systems are more common as they are more secure and spread the load better. Some have the bolts fore and aft, some are left and right, it just depends on manufacturer. Some manufacturers produce a saddle with an oval shape rail which can only be used with corresponding seatpost. It looks round from a distance until you try and put it in a traditional saddle rail and tighten it… Colour Materials: The most common seatpost materials are aluminium and carbon fibre, with the former being less expensive and more commonly found on low- to mid-range posts and bikes, and the latter being the option of choice for premium bikes. Carbon fibre is generally regarded as being more comfortable due to its vibration-absorbing characteristics, while top-end carbon posts are also the lightest on the market. However many – especially trail and gravity MTB riders – still favour premium aluminium posts for strength and confidence.

Similarly, if you ride a very small frame size and intend to have the saddle quite low, make sure there's nothing obstructing a longer seatpost from slotting in. However, whilst you can always cut a seatpost that's too long, you can't add to the length if it's too short. Construction material plays a large part in comfort. Alloy, titanium and carbon are the three materials to choose from. There are very few at the moment but some manufacturers have cradles which can only be used with their corresponding saddles. These will have a patented rail system which is unique to that manufacturer and cannot accept any other saddle.The same brand is also responsible for bringing dropper seatposts to the road audience: the Specialized Diverge, in its S-Works form, features a 'Command' dropper post. The theory is that those riding the adventure road bike, like mountain bikers, will want to be able to adjust their saddle height to suit the terrain. Concerted efforts have been made in recent years to further squash out the road buzz that can translate to fatigue over long miles.



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