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| Biking |
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Wednesday, 10 December 2008
Mountain biking is an exciting sport that can be
enjoyed by anyone who knows how to ride a bike.
Compared to the average bike ride, it does present
some danger. Therefore, you should master these
basic skills before you hit the trails or the
dirt.
You can practice these beginning skills at a local
park, school, bike path, or simply around your
house. If you can, try to find a location with
a steep hill.
Get a feel for your pedals
Practice moving your foot away from the pedal,
first while sitting on your bike with one foot on
the ground. Next, move on to releasing and
replacing your foot while pedaling around for a
bit. Those with toe clip and clipless type foot
pedals will want to spend a bit more time
practicing.
Sit and spin for position
Simply sit on your bike and pedal around. You
should keep your arms slightly bent. You should
also adjust your seat height so your leg is 70 to
90 percent extended at the bottom of every stroke
on the pedal. Keep your body relaxed, as there
will never be a position where you should have
either your knees or your elbows locked.
Shifting gears
Get a feel for shifting gears with your bike. The
higher gears are harder to pedal and will go
faster while the lower gears are easier to pedal
and will help you ascend hills. As you get to
steeper hills, its best to shift before you get
to the hill rather than while your on it.
Coasting
You should spend a bit of time coasting while
standing on your pedals, without actually sitting
on the seat. Keep your arms bent but don't lock
your knees. Now, try experimenting with shifting
your body towards the rear end of the bike.
Pedal while standing
You should get as comfortable as you can with
pedaling while standing on your bike. Try lifting
yourself off the seat while standing on the pedals,
then crank them around. You should try this in
higher gears on flat ground then again in lower
gears while on a hill.
Dropping down a curb
Try finding a curb where you can easily get to the
upper portion of it. Practice at a moderate speed,
standing and coasting right off the curb from the
upper level to the lower level. Try this at
different speeds until it becomes second nature.
Once you practice these techniques and get the
hang of them; you'll be able to hit the trails feeling
comfortable on your mountain bike. Even though it
may take some getting used to, it'll become second
nature before you know it.
Wednesday, 10 December 2008
It can be a bit frustrating as well as time consuming
when you buy a mountain bike. Below, you'll find
some tips and things to be aware of before you lay
down the cash and buy a mountain bike.
Determining your price
There is really no limit as to how much money you can
spend on a new mountain bike. To help you keep your
spending under control, you should figure out what
your price range is and how much you're willing to pay
for a new bike. When you buy, you shouldn't buy from
mass merchant stores such as Wal-Mart. You should
instead support your local bike shop and get a much
better bike and much better service.
Finding your style
All mountain bikes are designed with several different
riding styles and terrain types in mind. You'll need
to figure out what type of riding you will be doing
the most. Smooth riding, cross country racing,
mountain cruising, or lift accessed downhill is
something you need to figure out. Make sure that
the bike you select fits your personal style and not
that of the sale's staff.
Full suspension or hard tail
If you can afford it, a full suspension mountain
bike is always worth the purchase. A hard tail,
without rear suspension, is much lighter weight
and pedal more efficiently, although full suspensions
offer more comfort and overall better control. You'll
want to make that decision based on your price range,
riding style, and the type of terrain you'll be
riding on the most.
Finding your favorites
Comparing mountain bikes component to component is
nearly impossible, as there are far too many combinations
available. The best way to go about doing this is
finding a few components that are the most important
to you and making sure the rest or the minimums fall
within your price range. You can start with the fork
then look at the wheels and rear derailleur.
Sales and seasons
During the year, the prices of mountain bikes can
fluctuate quite a bit. Spring through summer is the
main buying season. If you can wait until the right
price pops up, normally in the fall and winter, you can
save a couple hundred dollars. Many bike shops will
also offer discounts or other accessories if you buy
from them.
Finding a good dealer
Finding a good bike dealer is more important than finding
the best price. You should always find a dealer that
cares more about selling you a great bike than selling you
a high priced one. A great dealer will have a clean repair
shop and give you the impression that you can really
trust them.
Test ride
You should test ride as many bikes as you can within
your price range and riding style. You'll find that
some bikes will feel right, while others won't. The more
bikes you can test drive, you better you'll understand
what works and what doesn't.
Doing the research
Product reviews and bike reviews are some of the best
ways to find out about a mountain bikes reliability and
overall performance. You should always look at what
other owners and reviews think about a bike before you
make that final purchase.
Wednesday, 10 December 2008
Mountain biking in cold weather has always been a
challenge. The problem is that you'll start out
cold then warm up and break a sweat, making you
wet. Then, when you travel downhill, the combination
of wet skin and wind chill will be quite chilling.
Below, you'll find a list of the cold weather clothing
that will make winter riding less of a bone chilling
experience.
Booties
In cold temperatures, your feet are the most vulnerable
part of your anatomy. Pressure from pedaling will
tend to cut off the circulation to your toes, which
can put you at a risk of frostbite. In cold conditions,
neoprene booties are a must have. They will zip over
your shoes and even have a pattern in the sole where
you can cut out a piece for cleats.
Gloves
There are several manufacturers that make "lobster
gloves", a hybrid glove that separates your index
finger and thumb from the rest of your hand. These
gloves are warmer than regular gloves, and the distinct
index finger will allow you to operate your shifting
and brake levers.
In case your hands get cold, you should carry a pair
of lightweight glove liners will you as well. If you
have to stop to take care of a problem, the liners will
protect your hands from the cold.
Glasses
Glasses that wraparound and provide maximum protection
from the wind are best to wear in the winter. You can
protect yourself from debris, as well as the cold.
Socks
You should wear heavy socks although not to heavy. A
sock that is overly heavy will make your shoes tight,
cut off circulation; even make your feet cold. You
should try lightweight socks, as they will keep your
feet warm without bulk. If you need an extra layer,
try silk ski socks as they are very warm and also
extra lightweight.
Underwear
Polypropylene is the best material here, as it is
lightweight and best for colder temperatures.
Wind protection
Moving air is the biggest cause for losing body
heat. By having good wind protection you'll be able
to vent perspiration while also protecting yourself
from wind chill. You should choose pants and a jacket
based on durability, breathing, and price as these
types of clothing can get very experience.
Helmet and liners
Your head is very important, as you lose 50% of your
body heat through your head. A helmet is designed to
keep you cool in the summer, not warm in the winter. A
fleece liner inside your helmet will keep your head
and ears warm during winter riding.
Wednesday, 10 December 2008
Cross Country Mountain biking is cross country at
its finest. Where free riders and downhill bikers
use four wheel bikes and ski lifts to get them to
their destination, cross country bikers get to
the top of the mountain by the ride. Though free
riding is very popular, the life vein of the sport
has always been cross country biking.
Just as cross country riders are a different breed,
the bikes they ride are as well. The cross country
bike is completely different in many ways from other
types of mountain riding bikes. The premise for
cross country riders is speed. Everything about
their bikes revolve with the idea of making the
bikes faster and faster.
Bikes used in cross country mountain biking can
be fully rigid frame, hard tails, or even full
suspension frames. Through the years, the cross
over to full suspension has become very popular.
The weight difference between free ride bikes and
cross country bikes are considerable. You'll be
extremely hard pressed to find a bike that weighs
more than 24 pounds, and even that weight can be
heavy. Free ride bikes weigh close to 40 pounds,
which makes the difference in weight pretty close.
If you've never tried cross country mountain biking,
you'll probably find it to be a break from the
ordinary. Even though this type of biking involves
trails, it's normally the type of terrain that
beginners wouldn't want to ride. Involving hills
and rough terrain, cross country biking offers
quite the rush.
For mountain bikers everywhere, cross country is
the way to go. It offers you a new assortment of
bikes, new areas to bike, and a new twist to
mountain biking as you know it. If you've been
looking for a mountain biking rush, cross country
mountain biking is what you need to be experiencing.
Wednesday, 10 December 2008
With mountain biking being a very popular sport,
there are many bikes to choose from. Depending
on what type of riding you like, the style of
bikes you can choose from will vary. Below, you'll
find tips on the different types of bikes available.
1. Cross country
Almost all mountain bikes will fit into this category.
Cross country mountain bikes are light weight, making
them easy to ride over most terrains, even up and
down hills. This is the most common mountain bike
and it can be used with ease for riding on the path
or even commuting.
2. Downhill
These types of bikes are for serious bikers who
crave the ultimate adventure. Downhill bikes have
front and rear suspension, strong parts, and disc
brakes. Rarely available off the shelf, most riders
like to custom build their own.
3. Trials
Trail mountain biking involves a great degree of
skill and is classified as the precision riding of
the sport. Similar to downhill bikes, trial riders
will often build their own bikes rather than purchase
one off a shelf. Generally very light and very
strong, these bikes require a lot of discipline.
4. Jump and slalom
Slalom and jump bikes are very strong and designed
for jumping, street racing, and slalom. They offer
a front suspension and use very strong components
dedicated to what they do. These bikes are very
popular with the sport of mountain biking.
Even if you are new to mountain biking, the sport can
be a lot of fun. There are several bikes to choose
from, all of which depend on your style. If you are
still looking for the best style for you, all you
have to do is try out several bikes and see which one
suites you the best.
Wednesday, 10 December 2008
This can be a very important decision when you
are buying a mountain bike. There are actually
two answers to the question of disc brakes or
rim brakes.
If you want better, more consistent brake performance
in all conditions, disc brakes are what you should
be choosing. On the other hand, if you want the
lightest set up you can have and you are willing to
accept small variances in brake performance, or you
want the lowest price possible, rim brakes are
what you should be choosing.
Over the years, mountain bikes have gone through
many design changes. They started out with the
original cantilever brakes, then went through the U
Brake years, and are now with V Brakes. In most
conditions, the V Brakes seem to work well.
In wet or muddy conditions, rim brakes will perform
poorly. Over time, they can wear right through the
side of your rim, causing the side of the rim to
blow right off.
Disc brakes on the other hand have been around for
a long time in cars but weren't used on bikes much
until the late 1990's. There were some issues in
the earlier models, although the cable actuated or
hydraulic brakes of today seem to work quite well.
In terms of performance, disc brakes seem to work
better than rim brakes, especially in wet or muddy
areas. Disc brakes normally require less force
to apply and aren't effected by the rim or wheel
condition.
Cost is an issue, as disk brake systems tend to be
more expensive than rim brakes. Mechanical or cable
actuated brakes are a closer match, although they
will still cost more. Hydraulic brakes on the other
hand cost a lot more.
When you make that final choice, weight out the above
options then make your decision. Some riders prefer
disc brakes, while others prefer rim brakes - making it
a matter of opinion.
Wednesday, 10 December 2008
The cost of a mountain bike frame is proportionate to
its material, as well as the treatment that material
has received. Currently, there are five types of
material used in mountain bikes - high tensile steel,
chromoly steel, aluminum, titanium, and carbon
fiber. Oversized diameters, heat treating, and butting are
tubing material treatments that will increase the
cost of a frame as well.
High tensile steel
This is a very durable alloy that's found in lower
priced mountain bikes. It offers a high carbon content
which makes it less stiff than chromoly steel, so
more materials are needed to make it stiff enough for
bicycle frames, which will in turn make it that much
heavier.
Relatively inexpensive to produce, you'll find this
material in trail bikes, city bikes, and even entry
level mountain bikes. There are some bikes that come
with a chromoly seat tube, while the rest is high
tensile steel.
Chromoly steel
Short for steel alloy, chromoly is best described by
its major additives - chromium and molybdenum. This
is probably the most refined framing material, giving
over 100 years of dependable service.
Depending on the type of heat treating and butting,
you can find this material in bikes as low as 400
dollars all the way up to 1,500 and beyond. The
chromoly steel material offers very good durability
and a compliant ride characteristic.
Aluminum
For the past 15 years, aluminum has been refined in
pretty much the same way as chromoly. There have
been various alloys developed, as well as heat
treatment, oversizing, and butting. With dual
suspension bikes, aluminum is the preferred material
as it's the stiffest and most cost effective.
Aluminum is stiffer than chromoly, and therefore it
will crack before chromoly. Of course, this depends
on how you ride and how much abuse you give the frame.
The advantages of aluminum is that the frame is very
light and very stiff through oversizing or butting.
Titanium
Even thought it's somewhat exotic, the prices for
this material has come down over the last few years.
Frames made of titanium remain expensive because it
takes longer to weld the tubes to the frame.
Titanium is considered an alloy, normally mixed with
small amounts of vanadium and aluminum to give it
better weld ability and ride characteristics. More
compliant than chromoly, it offers better fatigue
and corrosion properties.
The material you choose for your bike, all depends
on where you ride and what style you use. Almost
all materials will last you for years, as long as
you take care of your bike and treat the frame with
some respect.
Wednesday, 10 December 2008
The gears in mountain bikes just keep getting more
and more intricate. The bikes of today have as many
as 27 gear ratios. A mountain bike will use a
combination of three different sized sprockets in
front and nine in the back to produce gear ratios.
The idea behind all these gears is to allow the
rider to crank the pedals at a constant pace no
matter what kind of slope the bike is on. You can
understand this better by picturing a bike with
just a single gear. Each time you rotate the pedals
one turn, the rear wheel would rotate one turn
as well (1:1 gear ratio).
If the rear wheel is 26 inches in diameter, then
with 1:1 gearing, one full twist on the pedals
would result in the wheel covering 81.6 inches of
ground. If you are pedaling at a speed of 50 RPM,
this means that the bike can cover over 340 feet of
ground per minute. This is only 3.8 MPH, which
is the equivalence of walking speed. This is ideal
for climbing a steep hill, although bad for ground
or going downhill.
To go faster you'll need a different ratio. To
ride downhill at 25 MPH with a 50 RPM cadence at the
pedals, you'll need a 5.6:1 gear ratio. A bike
with a lot of gears will give you a large number
of increments between a 1:1 gear ratio and a 6.5:1
gear ratio so that you can always pedal at 50 RPM,
no matter how fast you are actually going.
On a normal 27 speed mountain bike, six of the gear
ratios are so close to each other that you can't
notice any difference between them.
With actual use, bike riders tend to choose a front
sprocket suitable for the slope they are riding on
and stick with it, although the front sprocket can
be difficult to shift under heavy load. It's much
easier to shit between the gears on the rear.
If you are cranking up a hill, it's best to choose
the smallest sprocket on the front then shift
between the nine gears available on the rear. The
more speeds you have on the back sprocket, the
bigger advantage you'll have.
All in all, gears are very important to mountain
bikes as they dictate your overall speed. Without
gears you wouldn't be able to build speed nor would
you be able to pound pedals. The gears will move
the pedals and help you build up speed.
There are all types of gears available in mountain
bikes, all of which will help you build up a lot
of momentum if you use them the right way.
Wednesday, 10 December 2008
A mountain bike is a lot of fun although it does
require some maintenance. You should always lube
your bike 15 hours or so before riding, as quick
jobs right before you take off normally doesn't
get everything lubed. Some lube jobs will last
for more rides, although if things get loud or
shifting gets sticky, it's time to lube.
Here is how to lube your bike:
1. The chain
Apply a generous amount of mountain bike lube to
your chain as you move the pedals around backwards.
It also helps to find a spot to steady your hand
such as the frame while you move the pedals around
and around. Make sure you watch out for the cranks
and chain rings as they move around.
2. Front Deraileur
On the front derailleur, lube the pivots. Use a
spot of lube everywhere you can see movement when
you move the shift lever.
3. Rear deraileur
Just like the front deraileur, lube the pivots.
4. Pedals
There are some types of clipless pedals that will
need to have the release mechanism lubed. You
should only lube this mechanism if you have this
type of pedal.
5. Everything into motion
Pedal around, shift your gears, and bounce your
bike around. If you hear anything squeak, there's
a moving part there are it should be lubed
immediately.
6. Wipe it all clean
Once you've lubed everything and wiped it all
around, simply wipe it all back off. Use a rag
to wipe away all the lube you used, including all
the lube off the chain. Wiping it away will leave
the lube in between the parts but clean it away
from everywhere it isn't needed. This will keep
your bike from collecting dirt while you ride.
Wednesday, 10 December 2008
Once your mountain bike chain becomes damaged, you
should immediately replace it with a new one. It
is possible however, to repair a broken chain using
a chain tool. For this very reason, most mountain
bikers travel with a chain tool.
Your chain has three basic components - the metal
side plates, the rollers between the side plates,
and the rivets, or pins which go through the rollers
and help to hold the plates together. These pins
allow the rollers to freely turn as the chain
moves around the cogs.
If your chain happens to break, you'll need to remove
the broken link and replace it with a spare link.
To do this, simply reattach the two ends of the
broken chain and ride on a shorter chain until you
can get it replaced.
To remove a broken link of chain, place it in the
chain tool. Now, turn the tool counter clockwise
until the rivet pin of the chain tool touches
the chain rivet. Continue to turn the tool until
the pin pushes out of the roller. Be very careful,
as you want to stop turning when the pin is right
at the edge of the roller, before it moves through
the outer side plate.
Now, turn the tool in the other direction, and back
it out of the roller. Set the tool to the side,
then work the chain very gently from side to side
and extract the inner side plates and roller.
Now is the time to re-route the chain through the
bike. You may want to have a chain retaining tool
or some to help you hold the chain in the right
spot as you route and repair it.
Now that the broken link has been removed and
you've re-routed the chain, you're ready to insert
a new link or simply connect the links that were
beside the broken one. The process here is the
same - align the two ends so that the link with
the inner side plates will fit inside the link
with the pin and outer side plates. Now, use the
chain tool to push the pin inward until it's
positioned evenly between the side plates.
The easiest way to learn how to do this or feel
comfortable doing it is to have someone show you,
then actually practice with a chain and a chain
tool. You'll have no trouble at all making a
temporary repair in a mountain bike chain once
you've seen it done by a professional and practiced
it yourself a few times.
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