Question: How Big Is Size Of Seat Post On Stumpjumper Bike?

What is the standard bicycle seat post size?

The dimensions of the seat tube can vary from bicycle to bicycle, so when choosing a seatpost, it’s important to get the correct diameter. The most common diameter is probably 27.2mm, but other sizes between 21.15 and 35mm are often found, as well. Seatposts also vary in length.

How is a bike seat post measured?

To measure, you place the rod inside the seat tube and match the diameter. The rods are designed to have an increasing diameter from one end to the other. Therefore, the correct reading, which matches, is the one above the end of the seat tube.

What size seat post should I buy?

It is essential to choose the right diameter of dropper post that corresponds to the diameter of your bike frame’s seat tube, or it will not fit on your bike. The most common seatpost diameters for mountain bikes are 30.9mm and 31.6mm, but 27.2mm (usually road) and 34.9mm exist too.

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Does the Specialized Stumpjumper have a dropper post?

Of course, you don’t get the flex stays on the aluminium model and the components of the most affordable model are generally quite low end. However, the aluminium Stumpjumper still comes specced with a dropper post and a 12-speed SRAM SX drivetrain.

Are all bike seat posts the same size?

While there are any number of post diameters out there, most modern road and MTB bike frames accept a seatpost of either 27.2mm in diameter (‘standard’), 30.9 or 31.6mm (‘oversize’).

Are bike seat posts universal?

Are bike seats universal? Yes, most modern bike seats are universal and can be interchanged with different seat posts. The exceptions are if you have much older equipment or a specialized bike. It’s best to check the number of rails and the rail width on your saddle to ensure a correct fit to the seat adapter.

What size seat clamp do I need for a 28.6 seatpost?

Note: The seat clamp diameter needs to match the diameter of your seat tube rather than your seatpost, which is a little smaller. For example, a 27.2mm seatpost (a size commonly found on road bikes) fits inside a 28.6mm diameter seat tube, so it’s a 28.6mm clamp you need.

Is 150mm dropper post enough?

Fast forward to 2020, and 150mm of drop seems to have become the bare minimum, while 170 and 200mm dropper posts have become much more common on larger frame sizes.

Is 100mm dropper enough?

100mm is fine, and 125mm works well too.

Are seatposts a standard size?

The most common size is 27.2 mm (1.07 in) for most bikes, especially for the higher-quality models. BMX bikes commonly use 25.4 seatposts. In some modern bikes with thicker alloy or carbon tubing, larger diameters such as 30.9 mm are used.

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How high should my dropper post be?

Typical dropper post travel ranges from 100 to 150mm, with even longer options now becoming more readily available. As a general rule, get as much travel as you can get away with. The lower you can get your seat, the more fun you’ll have, most of the time.

Is the Stumpjumper a hardtail?

The hardtail version of the Stumpjumper (sometimes named “Stumpjumper HT”) was the flagship XC hardtail in Specialized’s line-up until 2017 when it was replaced with the Epic Hardtail. Over time, the full-suspension Stumpjumper evolved from an XC bike into a mid-travel trail bike.

What’s the difference between Stumpjumper and Evo?

The All New Specialized Stumpjumper Evo Is Lighter, Better Balanced, Still Shreds. No longer a baby DH bike, the new Evo has better climbing and trail manners thanks to suspension and geometry updates. This version of the Stumpy had a geometry that looked progressive at the time and still holds up today.

What does a 2021 Stumpjumper weigh?

The full Stumpjumper frame assembly* (barely) tips the scales at an unbelievable 5.33 lbs (2,420g), but Specialized didn’t compromise in their quest for light weight. The Stumpy punches above its weight, setting the bar for mid-travel trail bikes in handling characteristics, pedaling efficiency and trail toughness.

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