Tag Archives

Archive of posts published in the category: wheels
Apr
6

Auto Accents Remote Car Starters, Sunroofs, Tinting, Wheels, Rims, Alarms, customizing, Heated Seats, Leather Interiors, car audio and Stereos

Remote Car Starters in Cleveland Ohio


remote car starters
are a great option
for your car and auto accents technicians
are the pros at
auto start
installation for your car,
van or truck. So if you are thinking about acar starter for
you or you want to give aremote start;
think of Auto Accents first as your primary
source for a remote
car start
and Python designated us as
exclusive dealer for theirremote car starterin Cleveland, Ohio. Auto Accents has
your car starters
and many more car accessories. Getting aremote starter
is a big decision and you should not
consider the discounted remote starters
from the big box stores. Come to Auto
Accents and We’ll put fun into your driving.


Car Audio

We held the world SPL
sound record over 15 years ago with the
LANZAR van. We know how to build and design
a loud and musical Audio system. Whether
using Directed electronics, ORION, ALPINE,
Kenwood, DEI, Rockford Fosgate, JL Audio,
Pioneer, Lanzar or any other speakers,
subwoofers, amps, amplifiers, crossovers,
enclosures and more all available here at
Auto Accents

Sunroofs

Automotive SUNROOF car or truck
allows light and fresh air. Manually
operated or motor driven,
POP-UP
Sunroofs,
pop-out, hatch, tilting panel.
Typically glass, removable, crank vent in
the roof, or a full opening when the panel
is removed. Pop-ups can be installed in most
vehicles, and are relatively inexpensive.
SPOILER Sunroofs
(tilt-&-slide) combine pop-up a sliding
sunroof. They tilt to vent, and also slide
open above the roof, requiring little
headroom or roof length.
INBUILT
Sunroofs

(internal sliding; moon roofs), electric.
glass [moon roof]. The panel slides open
between the metal roof and interior
headliner, requiring some loss of headroom,
and providing a full opening in the roof.
Many include a tilting feature for venting
and electronic control. Inbuilt don’t fit
every vehicle as the panel must slide and
store completely within the vehicle roof.
FOLDING Sunroofs, TOP-MOUNT SLIDING SunroofsThe new BMW Mini offers a top-mount slider,
DONMAR’s original SKY ROOF® Sliding Sunroof.
PANORAMIC ROOF SYSTEMS
REMOVABLE ROOF
PANELS

(T-tops & Targa roofs)

Car and truck Accessories


Automotive and truck Accessories. Toneau
covers, wings, running boards, ferrings,
wheels, rims, tires, installation, Steering
wheels, Shifters,  alarms, Neon Lighting ,
HID Headlamps.


Automotive Performance, Truck
Performance,

Looking for Pythons 
alarm and starters like the 771xvr? Then
come to Auto Accents, Cleveland Ohio, where
we sell and install
auto car starters and stock parts for auto
command remote starter auto remote start
kits, automotive accents is our specialty
and if you are looking for the best remote
car starters, and adding car accents and all
the DEI products from python 1090,
python 871xp, python 990,python 990 manual,
or looking for python alarm manuals, or remote car
alarms in  Cleveland, and when you want
installation of remote engine starters,
remote start, remote starter Cleveland; then
come to Auto Accents.

 

Window
Tinting

Window Tinting is all about
privacy and security for your car, your
family and your belongings. Stay cool in the

Apr
5

Are Expensive Bicycle Wheels Worth the Money? Let’s Check the Physics

In this video, you see a cyclist testing new aerodynamic wheels from Zipp. Swapping your wheels may seem like a small change, but can make a big difference. From his tests, the rider discovers:

  • With conventional wheels, he can ride 20 minutes at an average speed of 41.12 kph with an average power of 379 watts.
  • With the Zipp 808 NSW aero wheels he rides 51 minutes at an average speed of 41.13 kph and average power of 344 watts.

Before looking at power and energy, I should go over two small details.

First, how do you measure power? Cyclists can measure power by installing a small computer, called a power meter, that measures the input torque at the pedals or crankshaft and records the rotation angle at timed intervals. If you know the torque and angle, you can calculate the input energy. Dividing this energy by time gives you power.

La te xi t 1

Second, this isn’t a perfect test of aerodynamics. If you really want to examine the effect of the new wheels, you probably would have to put a bike with a dummy in a wind tunnel. When the reviewer takes his second ride, many things could have changed—wind, body position, amount of sweat on the body—and impacted performance. Let’s assume the only thing that changed was the wheels.

Air Drag and Power

What happens when you ride a bike? If you are moving at a constant speed, then the net force on the bike-human system must be zero. In a slightly simplified view, I can draw the following force diagram:

Spring 2016 Sketches key

The vertical forces (gravity pulling down and the ground pushing up) don’t really matter here. Just forget about them and pay attention to the horizontal forces. First, let’s look at the air drag. Air acts in complicated ways when an object passes through it. But who cares when we can make a simple model of air drag force? Here’s an expression for the magnitude of this force:

La te xi t 1

In this model, the air force is proportional to the square of the bike’s speed (v). For the other terms, we have:

  • ρ is the density of air (around 1.0 kg/m3).
  • A is the cross sectional area of the bike plus the rider (how much of the object interacts with the air).
  • Finally, C is the drag coefficient. This parameter depends upon the shape of the object. If you change the wheels, it is the value of C that should change.

The second horizontal force is the frictional force. An interaction between the road and the tires propels the bike. I know what you’re thinking: Doesn’t the human propel the bike? In a sense, yes. But the reality is sort of complicated. The rider’s power goes through the pedals and chain to the wheel, which turns. But the force comes from the tire pushing against the road. So for our energy perspective on this problem let’s just say the human provides the friction force.

Clearly the faster the biker