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Questions and answers about sports

What are the round things near the main front cog?

5 min read

Asked by: Rachelle Weeks

What is a crank spider?

Crank (spider): is the actual section that the chain rings bolt onto. Crank Arms: These are the levers to that your pedals attach to. Chain: The chain is what turns the back wheel when you pedal. Bottom Bracket: This is the housing that holds the bearings in place and the axle that the crank arms attach to.

What are chain rings?

Chainrings are the parts with the teeth on the chainset over which the chain passes. They can wear out over time but they are available to buy individually. You don’t have to buy a whole new chainset just because a chainring has worn out. Chainrings are quite easy to replace too.

What is the front cog on a bike called?

The front gears are referred to as chainrings, or as a crankset, or by the less jargon-savvy cyclists, ‘the front ones’. Actually, the whole assembly with the crank arms and the front gears together is properly known as the ‘crankset’, or sometimes ‘chainset’.

What is the purpose of an oval chainring?

Oval chainrings maximize the part of the stroke where power is produced and minimize resistance where it isn’t. As a direct consequence, Oval rings enhance a cyclist’s ability to spin with a smoother power delivery and feel much easier on legs while climbing. Meaning you will go faster and get less tired.

What is a pedal spindle?

A pedal usually consists of a spindle that threads into the end of the crank, and a body on which the foot rest is attached, that is free to rotate on bearings with respect to the spindle.

What is a pedal axle?

PEDAL AXLES (Essential Bike Pedal Parts – 1)



The platform or body of a pedal along with its axle define the core of a pedal. Just a quick note about axles and spindles in bicycle mechanics. Axles remain stationary whereas spindles rotate.

How do you replace front chainrings?

How to replace a bicycle chainring

  1. Step 1 – Remove the chainset. …
  2. Step 2 – Loosen the bolts. …
  3. Step 3 – Remove the rings. …
  4. Step 4 – Clean and grease the bolts. …
  5. Step 5 – Inspect the chainring. …
  6. Step 6 – Put it all back together.


What is 130bcd?

If you’re looking at the hole in a crankset, imagine a circle that went directly through the center of each hole overlayed on the crankset. The diameter of that circle is the BCD. When you see a measurement like 110 or 130 BCD, that means that diameter is 110 or 130 millimeters, respectively.

What is BCD chainring?

Bolt Circle Diameter (BCD) is the diameter of the circle that goes through the center of all of the bolts on your chainring. On bicycle chainrings, this dimension is usually measured in millimeters. It is critical to know the BCD of your crankset when you are selecting a new chainring for your bike.

What is a granny gear on a bike?

The granny gear is the smallest cog on the front crankset of your bike. If you haven’t already become best friends with it, you may need to start!

What is a cogset on a bike?

On a bicycle, the cogset or cluster is the set of multiple sprockets that attaches to the hub on the rear wheel. A cogset works with a rear derailleur to provide multiple gear ratios to the rider. Cogsets come in two varieties, freewheels or cassettes, of which cassettes are a newer development.

What is the hardest gear on a bike?

High Gear = Hard = Good for Descending: The “highest” gear on your bike is the largest chain ring in the front and the smallest cog on your cassette (rear gears). In this position, the pedaling will be the hardest and you’ll be able to accelerate while traveling downhill.

What is a crank bolt?

Crank bolts, as the name suggests, are used to secure the crank to the axle (spindle) of the bottom bracket(BB). While they are another of those parts that may go largely unnoticed by most riders – sometimes they are even covered by a dust cap – they may become loose and worn over time and require replacement.

How do you remove a crank spindle?

Quote from video: As that one first remove the caps from the pedlow. And also the crank sets that they have what these will either unscrew or prise off in this case there are a small allen key fitting.

What is a spindle on a bottom bracket?

Quote from video: Похожие запросы

What is a spider bike?

The Can-Am Spyder (“Spyder”) is a three-wheeled motorcycle manufactured by Can-Am motorcycles, a division of Bombardier Recreational Products. The vehicle has a single rear drive wheel and two wheels in front for steering, similar in layout to a modern snowmobile. The Spyder uses an ATV-like chassis.

How is road bike power measured?

Power = Force x Distance / Time



For a power meter to work on a bike, it has to measure the amount of force a rider is generating, and how fast that force moves (speed = distance / time). When pedaling a bike, the force comes from the torque produced by a rider’s legs pushing down on the pedals.

Is 150 watts good cycling?

Power is a great tool for setting goals and measuring improvement. If a rider usually averages 130 watts per hour, for example, and a month later is averaging 150 watts per hour, he or she is definitely getting stronger.

What watts should I cycle at?

The article claims that a typical fit cyclist might be able to crank out 250 to 300 watts as an average for a 20 minute FTP (functional threshold point) test, while the pros usually average 400 watts.