Why Are Mountain Bike Seats Offset? (Solution found)

Fair Bicycle says that the negative offset could help strike a balance for some new bikes with extremely steep STAs. Extra large frames with seat tube angles of 77º or steeper can make the seated position much shorter in comparison to the reach measurement or standing position.

What happens when you reduce the offset on a bike?

  • Reducing the offset — which is what many bike designers are doing today — pulls the axle closer. This has two effects. With a reduced offset — and in today’s terms we’re talking about offsets between 37mm to 46mm — it increases the amount of trail, because the wheel will contact the ground more ahead of the steering axis.

What is the point of an offset seatpost?

A seatpost with offset is necessary when the seat tube angle of the frame is too steep to give the desired saddle setback (the horizontal distance between a plumb line hung from the nose of the saddle and the bottom bracket spindle). Conversely, an “in line” post may be required if the seat tube angle is too slack.

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Why are MTB seats so uncomfortable?

Finally, the main reasons why mountain bike seats are so uncomfortable are the size of the seat and settings, not being used to biking regularly, and human anatomies with the sitting bones not used to get the bike seat. Also, there are other factors such as how long is your ride and the type of ride.

Do I need offset seatpost?

There is no advantage to a zero setback seatpost for a road bike. Fewer people all the time take any stock in the idea that femur length and the resulting knee over pedal measurements are relevant to producing the proper rider position. It’s better to have the rider properly balanced over the saddle and ignore KOP.

Why are bike seats made the way they are?

The long narrow shape allows cyclists to spin their legs at high rpms. A wider platform would interfere with pumping thighs. The back of the seat is just broad enough to support the pelvis and just padded enough to absorb impacts without adding weight.

Are setback seatposts more comfortable?

If you are someone who is pushed forward on the rails, a straight post would be the better choice fitting wise. But if you think about a post, there is much more leverage on a setback post which would lead to more flex and potentially more comfort. That’s a good link.

Why do seatposts have setback?

Road bikes for years have had posts with setback- a seatpost where the clamping area for the saddle was behind the centre of the post that came up from the seatpost. The theory behind this was to allow for proper weight distribution (ideally 60 % on the rear of the bike, 40 % on the front).

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How do I make my bike seat not hurt?

What Can You Do To Avoid Problems In The Crotch.

  1. Set your saddle at the right height. This is another reason to get a bike fit.
  2. Try a saddle with a cutout. A cutout redistributes pressure in the crotch and may relieve pain.
  3. Get the right shorts.
  4. Use the right lube.

Why are mountain bike saddles so hard?

The transfer of weight as you shift on the seat, moving through the pedal cycle, allows all or most of your energy to transfer to the pedals from your legs due to a firm seat that does not absorb any of that energy. Thus, a firm seat allows for maximum pedaling energy efficiency.

How do I know if I need setback seatpost?

Straight and Setback Seatposts The amount of setback or offset is best determined through a basic bike fit at a participating bike shop. They will look at the relationship between your knee and pedal axle, as well as your hip angle/mobility and will determine how far you should sit behind your crankset.

What is saddle offset?

Bike saddle offset is similar to saddle setback, although offset or “layback” comes from the seat post rather than adjustment of the saddle. Bike saddle offset can range from 0 mm to 45 mm and is often used when riders with longer femur’s need to get further behind the bottom bracket.

What is setback on a bike?

Saddle setback in cycling refers to the horizontal distance between the centre of the bottom bracket and the front tip of the saddle. Using COG, the optimal saddle setback is said to occur when the rider is well balanced and does not have to expend excessive muscular energy to support their weight (Bontrager 1998).

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Why are stationary bike seats so uncomfortable?

Very many people experience discomfort while using an exercise bike or after their training session, mostly because the bike’s seat has been set inadequately. Thus, the seat is either set too high or too low, which causes an uneven distribution of your body’s weight as you exercise.

Why are stock bike seats so uncomfortable?

A Bike’s Discomfort When I first started biking, I was curious why bike seats were stiff and skinny. I found them difficult to sit on, especially on long trips, because they gave me constant sores and back pains. Plus, your position and proper seat adjustment while biking also make a huge difference in your comfort.

Why are spin bikes so uncomfortable?

Too much friction between the saddle and the leg can create chafing and sores. Not enough time standing up and out of the saddle during classes to relieve pressure. Women using male saddles and vice versa but also… Too little or too much padding for an individual’s need.

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