Rear Main Crank

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Rear Main Crank
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The Catahoula "hog dog" is an American Dog used specifically to herd the wild pigs and drive them into the pens during the annual wild pig "roundups" in Louisiana. Legend has it that the dogs were originally brought in by DeSoto as attack dogs used against the native Indians and then abandoned when the Spaniards left. This original strain was most likely mastiff.

Traditionally the breed has been used as a herding breed but it also does an admirable job of trailing and it is thought that local hounds and members of the native American tribes were mixed in to the genetic pool at some point. The result is a dog with a "coat of many colors", ranging from leopard spots to merle to black and tan and everything in between, often with each eye being a different color. The coat is short and dense, the tail long, the ears are a natural lop. The name Catahoula comes from the Catahoula Parish, a place in Northeast Louisiana.

These strange appearing dogs don't always "herd" in the normal sense of the word. Often the dog will way-lay a single hog, challenging it to attack. The enraged hog will scream and give warning cries to other hogs, who will emerge from the woods to join the fray. When the hogs come after him, the dog will then turn and run into the waiting pens, leading the hogs in this manner rather than herding from the rear. The modern Catahoula is still used in this manner and also will work well with cattle as well. He is a tough dog, the largest of the cattle dogs, combining an aggressive nature with persistence and agility. Fearlessness and courage are both traits which are necessary when working with stock and wild hogs. The Catahoula also can use its scenting capabilities to seek out and find the wild stock in the woods. This dog is strong willed and yet a willing worker when it comes to rounding up the wild stock and generally helping the local people with hunting also.

There is no registry which has accepted this dog as a true "breed". There are a number of "curs" bred for specific abilities and used in most parts of the southern United states for herding, hunting and as family pets. The Catahoula is a member of this particular family of dogs, most of whom descended from stock brought to this country by the Spanish and the French and interbred with the local Indian dogs. There is some archaeological data to suggest that there was a native dog which existed with the Indian tribes long before the arrival of the white man to this continent. It is thought that this feral native dog played a large part in the development of the Catahoula breed.

The Catahoula Leopard Dog can be a great family pet combining loyalty and affection with a strong guarding ability and protective instinct as well. However, it has a mind of its own and is not for everyone. The dog must be taught obedience and the owner must be the pack leader or the "alpha" member of the partnership. These dogs are not city dogs, they need a job to do to be at their best and when given such a job will be loyal, intelligent and persistent.

Michael Russell Your Independent guide to Animals.

Bike Brakes Buying Guide

Bike Brakes Guide Your bicycle's brakes are its main safety feature. They help control your speed and stop when you are ready to stop. There are many types of bike brakes for different applications. They all have advantages and disadvantages depending on use. There are brakes designed best for road bikes and some that work best on a mountain bike. There are different styles of rim brakes that apply stopping power to the rim and different types of hub brakes that apply stopping power to the hub area of your wheel. We'll break all of this down for you in a way that is as easy as possible to understand.

Brake

Brakes are the component of the braking system that actuate the brake pads and directly apply stopping power to either the rim or the hub of a bicycle wheel.

Brake pads

Brake pads are pressed to the rim or disc to apply stopping power. They are made of many different compounds for different applications. Each style of brake has a specific style of pad that will work properly with that brake. Some pads have cross compatibility and can be used for multiple platforms, mainly cantilever and V-brakes. It is important to check brake pad wear and alignment to ensure safe riding.

Brake levers

Brake levers actuate the caliper and are normally located on the handlebars. They are the rider interface with the braking system. There are two main types of levers: those intended for drop bars and those designed for flat bars. From there, there are levers designed to work with the different variations of the calipers and dual control levers that control braking and shifting. With dual control levers you have to determine the proper brake interface and shift interface.

Drop bar levers

Drop bar levers are ergonomic levers that mount to the front, curving section of a drop bar. They act as the main hand placement position on most road bikes. Drop levers are typically designed to work with center-pull or side-pull brakes. If you are using linear pull brakes with drop levers, you must use a lever that is designed to function with the increased mechanical advantage that linear pull brakes afford.

Flat bar levers

Flat bars have their own set of levers, typically called mountain bike levers or BMX levers. It is important to know which type of brake the lever will be used with. Center pull and side pull use one type of lever, while linear pull brakes need a special lever.

Aero levers

Aero levers are special levers that attach to the end of bull-horn-style handlebars for time trial or triathlon use. They typically attach to the inside of the handlebar with an expansion nut.

Rim brakes Rim brakes apply stopping power (friction) to your wheel's rim. Rim brakes are generally actuated with a cable which is pulled with a lever mounted on the bike's handlebars. There are a few different ways in which the cable attaches to the brake. Another way to classify brakes is by mounting style. Most brake types crossover, so defining them can become confusing.

Cable interface

The manner in which a cable connects with and actuates a brake and brings the pads to the rim is a key characteristic to consider when shopping for the proper brake.

Center pull

Center pull brakes have a split or "straddle cable" that connects to the two opposite brake arms and is pulled from the center to bring the pads to the rim.

Linear pull

Linear pull brakes use a cable stop to act as one anchor point, stopping the cable housing and anchoring the cable's end on the other brake arm. When the cable is pulled, the two arms are actuated and stopping power is applied to the rims.

Side pull

Side pull brakes have a single cable running down the side of the caliper and work similarly to linear pull in that the housing and cable work together to actuate the brake arms. The big difference between linear pull and side pull is that side pull calipers have both arms on both sides of the caliper and pivot around the anchor bolt.

Mounting style

The manner in which a rim bike brake is attached to a bicycle frame and the way that the brake functions is the other key defining characteristic.

Cantilever brake

Cantilevers are characterized by two separate brake arms that pivot around two separate bolts mounted into the frame on opposite sides of the wheel. The two styles are standard cantilevers with bent arms and a center pull straddle cable, and Shimano's patented V-brake style with straight arms and a linear pull cable.

V-brake

Shimano developed a straight arm cantilever that is actuated from a linear pulled cable. This system offers more mechanical advantage than traditional cantilevers requiring a brake lever that applies less advantage.

Caliper

A brake caliper mounts to the bicycle frame at a single, central point that also acts as a pivot point for the brake arms on both sides of the rim. Calipers can be actuated with a side pull or center pull.

• Single pivot: In single pivot caliper brakes, both brake arms pivot around a single, central point that also anchors the caliper to the bicycle.
• Dual pivot: Dual pivot brakes anchor and pivot around a central point with an additional pivot on one side that adds mechanical advantage. Dual pivot brakes are the norm in today's road cycling market and are generally lower profile and higher quality than single pivot brake calipers available today.

Hub Brakes Hub bike apply stopping power to your wheel's hub. Sometimes they are internal (drum and coaster brakes), and sometimes they are external (disc brakes). Internal hubs can be actuated via levers or by applying reverse torque on the crank arms. External hub brakes are generally actuated with a lever attached to the handlebars

Disc brakes

Disc bike brakes use a caliper attached to the bicycle's frame or fork that apply stopping power to a metal disc attached to the corresponding hub. Disc brakes do a much better job at dissipating heat than traditional rim braking and, because they don't interface with the rim, don't cause any rim wear. They have become extremely widespread in off-road bikes and with tandems for these reasons. The main things to consider when purchasing disc parts are whether the brake is hydraulic or mechanical, the disc rotor diameter and interface, and the caliper mounting interface. There are adapters that can be used to aid in cross-compatibility, but not all brakes work with all bikes.

Drum brakes

Drum brakes are actuated by a brake lever, generally mounted on the handlebars. The brake actuation presses brake pads against the inner wall of the hub shell. They are popular on tandems and motorized bikes. Since they are internal, they work well even in the worst weather conditions.

Coaster brakes

Coaster brakes work in a similar fashion to drum brakes. The large difference is actuation; while drum brakes are actuated via a brake lever, coasters function with a reverse pedaling motion. Pedaling backwards forces a brake cone to push the pads against the internal hub shell. Normal pedaling motion disengages the brake cane, allowing for normal pedaling. Coaster brakes are only installed on the rear wheel of a bicycle.

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About the Author

Jon Carter is an avid biker and enjoys writing about the subject.  If you need bike parts, then come check out bikewagon.com

20w50 oil in winter months below 32 Degree?

Well i have a 1991 Ford F150 with high mile 177,000 and a leaking rear main seal. I poured 20w50 so it would slow the leak alittle. Do you think that was a wise idea? It about -20 outside with the wind chill. Now my truck wont start it just crank and cranks and now i drain the battery so now the lights wont come on and the truck wont even jump start. Im so lost on what to do , should i drain the thick oil and use another grade?
What oil grade do you guys think i should run in this weather and high miles?
i also dont have any oil pressure when in gear but the oil pressure goes to normal in N or P

10w30 is perfect if you have a slow leak. it will slow the leak enough untill you can have it fixed and it should start fine. you probably need a new battery now that you drained it too. try parking in a grage next time.

Merida Ninety-Six Carbon Team-D
Carbon superbike

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