transformparts Bicycle Bike Layback Seatpost Seat Post 25.4 350mm

Product Information

FWIW I saw a tandem yesterday with a steel seatpin with steel Ahead stem(approx 10cm) fitted to the top,with an old type bolt through saddle clamp fitted to that,believe it or not it looked very neat. 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. There's the Canyon VCLS (it stands for Vertical Comfort Lateral Stiffness) seatpost, which uses a 'v' shaped split to create two thinner strips of material and thus disrupt the buzz from that nasty tarmac before it reaches the rider.

Aero road bikes come with aero seatposts. These are flatter and designed to channel air more seamlessly, limiting the resistance that slows you down.How much is the nose of the saddle behind the BB measured vertically with the bike on level ground? 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. Concerted efforts have been made in recent years to further squash out the road buzz that can translate to fatigue over long miles. 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.

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. 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 Finally, there are a number of ‘non-standard’ seatpost designs worth mentioning, the primary ones being aero posts (for road and TT racing) and dropper posts (for trail and gravity MTB riding).

If you don't feel your bike needs to be any more comfortable, and you're not fussed about 100 grams, then aluminium seems like a smart choice. If you want to drop the weight or add some cushion, look to spend more. 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. 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. There are different lengths on offer, too. Seatposts will have a marker which shows the minimum amount of post that can be inside the seat tube. If you ride a small frame with a lot of seatpost showing, you'll need to make sure you buy a post that allows for this.