Make it Easy as Pie When Choosing Your Bike

Make it Easy as Pie When Choosing Your Bike
by Dr. Paul Marston

Read Make it Easy as Pie When Choosing Your Bike by Dr. Paul Marston to learn more about Marston Chiropractic and our Chiropractic office in Kinnelon, NJ.

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However you choose to ride around on two wheels: on-road, off-road, for fun or competitively – the bike you choose to do it has to be fit not just to those needs, but also to your body. You wouldn’t enter a Tour de France on a Big Wheel, and neither should you ignore the finer points when matching your bike to your body.

Your bike must fit your body. When it does, you will know the difference because you will ride more comfortably, more powerfully, covering more ground faster, with less effort, and with less risk of injury.

There are five primary considerations when choosing your bike:

  1. Frame size
  2. Seat height
  3. Seat position
  4. Seat tilt
  5. Handlebar position

Frame Size

Get this wrong and you’ll look like you just stole the bike from someone else. This is the most important measurement to properly size up because the frame is the one thing that cannot be adjusted – unless you’re handy with a hacksaw and welding torch. Frame size is not always down to a person’s overall height; it is the leg length that matters. You should be able to straddle the bike frame (not the seat) and be able to plant both feet flat on the floor without having to squeak from contact made with your inseam. For a guys bike with the horizontal bar design, this is important if you are ever stop unexpectedly. If your feet don’t hit the floor before you hit the horizontal bar … squeak.

  • For a road or hybrid bike, the horizontal bar gap should be an inch or two.
  • For a mountain bike, it should be about four inches given the higher likelihood of an unplanned dismount on rough terrain.

Seat Height

Setting the seat too high or too low can lead to pain and injury to the back and knees, and an inefficient revolution of each pedal stroke. When the pedal is at its lowest point with the ball of your foot on the pedal, your knee should be slightly bent. Make this seat adjustment wearing the shoes you will normally wear when riding.

Seat Position

You need to be sitting on your bike to check the seat position, with the aid of something or someone to hold on to so both feet can be on the pedals. Rotate the pedals until they are at the 3 o’clock and 9 o’clock positions. With the ball of your foot on the pedal, your forward knee should be directly over the axle of that pedal. If this is not the case, make the necessary adjustment by sliding the seat forward or backward.

Seat Tilt

Your seat should ideally be level, which can be checked with a spirit level if you’re really bored. Make sure you’re not on a hill when you do this – obviously. If your seat tips too much one way or the other, there will be pressure on your arms, shoulders, and lower back. Choose the seat design accordingly, bearing in mind the padding and the length of your average bike ride.

Handlebar Position

How you position the handlebars will be determined largely by the type of bike you have. Bullhorn handlebars on a racer won’t really work aerodynamically. Your shoulder, neck, and back are all affected by your handlebar position and design.

Always Wear a Helmet!

It’s no use having very relaxed muscles if your head breaks open. As your muscles go into rigor after death, even the ME who deals with your body will have no idea how relaxed you were just before the impact. The National Highway Safety Traffic Administration reports that a properly fitted bicycle helmet reduces the risk of head injury by 85%, and brain injury by 88%. You can ensure your helmet fits correctly by taking note of the following:

  • Your helmet should be level on the head, while protecting the forehead.
  • Your ears should just fit inside the Y shape of the side straps.
  • The chin strap should be snug enough that if you open your mouth wide, it pulls the helmet down slightly.
  • If you can move your helmet back on your head more than an inch by pushing on the front, it is not correctly fitted.
  • If the helmet dislodges when you give your head a shake, you can be sure worse will happen in an accident.
  • Sounds obvious, but don’t wear another hat under the helmet – you’re not Eminem.
  • Helmets should conform to the relevant national/international standards applicable to the country where you live, and have the appropriate stickers to prove it. World War II helmets aren’t a good substitute and you will quickly become known locally as “that loon on the bike”.
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For Your Health,

Dr. Paul Marston

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Marston Chiropractic
300 Kakeout Road
Kinnelon, NJ 07405

Phone: 973-838-6252
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