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How do I choose brake discs?

Posted on September 19, 2020 by Author

Table of Contents

  • 1 How do I choose brake discs?
  • 2 How can I make my disc brakes more powerful?
  • 3 How thick should brake discs be?
  • 4 Do I need 160mm rotors?
  • 5 What material is car brake discs made of?
  • 6 Can brake disc thermal analysis be done on Baja SAE prototype?
  • 7 What happens to the brake discs during hard braking?

How do I choose brake discs?

The best way to ensure you get the correct brake discs is to check the diameter of the brake discs already fitted. The diameter and thickness of the disc is illustrated below. To measure the diameter you may not have to remove the wheel, however it would make the measuring process easier.

What size disc brake should I use?

Disc Brake Rotors Generally, road and cyclocross use 140 to 160mm, XC mountain biking uses 160mm, trail riding uses 160 to 180mm (sometimes a mix, with the larger rotor up front), enduro uses 180mm, and DH uses 200 to 205mm.

How can I make my disc brakes more powerful?

Six simple tips for improving your disc brake power

  1. Lever position. Struggling for power or modulation?
  2. Bleed your brakes.
  3. Buy bigger rotors.
  4. Clean your rotors and pads.
  5. Buy new brake pads.
  6. Improve your braking technique.
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Which material would be best used for car brake discs?

Cast iron is a common material for automobile brake discs. Many researchers have pointed out that vermicular graphite cast iron has relatively good friction and wear performances. Additionally, it is used as the base materials for brake discs in most automobiles.

How thick should brake discs be?

Ideally, your brake pads should be thicker than 6.4 mm (¼ inches) for proper functioning. If it’s thinner than this, consider getting a replacement soon. Most car mechanics also agree that the bare minimum brake pad thickness is 3.2 mm (⅛ inches).

Are thicker brake discs better?

Simply put a bigger rotor provided better braking, and a four pot caliper provides better braking – better meaning more, and more control (Everything else being equal). For the same force between the disc and pads, a bigger rotor generates more torque on the wheel – i.e. more stopping force.

Do I need 160mm rotors?

Sram’s road product manager, Brad Menna, agrees: ‘We recommend 160mm for road applications. That’s what provides the most power and best system performance for the widest range of riders and uses. ‘ Shimano’s Ben Hillsdon also agrees, and explains why 160mm rotors might be better able to cope in certain situations.

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What is the difference between 160mm and 180mm rotors?

1. 180mm rotors offer greater stopping power than 160mm ones and are better for larger riders and harsh descents. 160mm rotors are lighter, provide better modulation and work just fine for small riders and bikes that won’t be used for downhill.

What material is car brake discs made of?

Brake rotors (or discs) are commonly made from cast iron, which is cheap to make and relatively long lasting. Sports cars and supercars tend to have carbon discs, which are paired with ceramic pads. These are much more expensive but are more effective at braking the car from higher speeds and for longer periods.

Which metal is commonly used in the manufacture of car brake discs?

Brake discs are largely made from grey cast iron, as it is characterised by good thermal conductivity and anti-vibration capacity [9]. Newest disc solutions, especially in sports cars, utilise composite materials based on ceramics [10].

Can brake disc thermal analysis be done on Baja SAE prototype?

Abstract and Figures This paper aims to study the thermal analysis of brake discs applied to a baja SAE prototype developed by students at University of Brasília in the years of 2019 and 2020 with two different materials, steel SAE 1045 and stainless steel AISI 304.

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How do you decide which wheels will need braking?

Having decided which wheels will need braking to generate sufficient braking force the torque requirements of each wheel need to be determined. For some legislation the distribution between front and rear brakes is laid down. This may be achieved by varying the brake size or more likely using a valve to reduce the actuation pressure.

What happens to the brake discs during hard braking?

In a hard braking a large amount of heat flux is generated in a short time and is dissipated through the brake discs, increasing its temperature. After repeated braking, the high temperature of the components can cause brake fade, which is a reduction of the stopping power.

How many braking cycles for steel AISI 304 brake discs?

Abstract. This paper aims to study the thermal analysis of brake discs applied to a baja SAE prototype developed by steel AISI 304. Thus, to analyze the performance of both discs and materials, it was considered 25 braking cycles. As the the friction re gion of pads and disc.

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