Viva pessoal.
Esqueçam as pastilhas orgânicas, sintéticas, e por aí a fora. A única vantagem deste tipo de pastilhas é a de acamarem mais depressa do que as metálicas. Nem são as semi-metálicas. São mesmo as metálicas, conhecidas à antiga como as Sintered.
Estas pastilhas travam sempre igual faça sol, ou faça chuva. Gastam muito pouco. Digam lá o que disserem. Se um par destes se gastar depressa, é porque não era sintered. Depois têm uma grande vantagem face às outras. Não são sensíveis ao óleo. Ok. Gastam mais os discos, mas prefiro trocar de discos aos 10 mil, do que andar aos papeis de 200 em 200 kms e a saltitar de marca em marca, ou porque choveu, ou porque tem lama, ou porque o óleo deu um espirro para cima dos discos.
Metalicas. Não semi-metálicas. Tem que ser mesmo metálicas (sintered).
Só têm um senão. Precisam de uns 50 ou 100kms para acamarem e até acamarem, fazem barulho que parecem um comboio da CP. Por ultimo, são as únicas pastilhas que se aguentam com os discos referidos no tópico acima. E não digam que travam mal. Deixem-nas acamar e depois conversamos.
As outras pastilhas são um negócio da china. A malta farta-se de gastar dinheiro, ou porque se gastaram, ou porque se embebedaram em óleo, ou porque, ou porque.
Leiam abaixo. Esta explicação vem no
www.discobrakes.com também alguns sites como os da shimano referem as vantagens e desvantagens das pastilhas metálicas.
Não gastem mais dinheiro noutro tipo de pastilhas que é a mesma coisa que estar a fumar cigarros.
Semi-Metallic Compound
Also known as Compound S (Semi-Metallic)
Semi-metallic compound for good wear in all conditions. Medium density with consistent wet and dry performance and good grip.
Advantages: Cheap, Above average all around performance
Disadvantages: Grippier and longer lasting pads are available
Suitable For: Everything
Conclusion: Best Value
Superlight WorldCup Competition Alu Backed Pads use the medium compound.
Professional Grade Black Ceramic Compound
Also known as Compound C (Ceramic Pro)
These soft organic ceramic fiber disc brake pads are carbonized. The ceramic compound insulates the brake system from friction heat up to 400oC. The result is a very powerful, quiet pad with extremely low heat generation which all but eliminates the chances of brake fade.
| DetailsUpgrade on original fitted pads
DIN 79100 Standard Approved
Organic Compound contains no metal material
Reduces damage to rotor
Carbonized compound reduces brake fading
Ceramic Fiber insulates brake system from friction heat
Non-Asbestos
|
Advantages: Excellent grip, Low noise, Low heat, Consistent in all conditions
Disadvantages: Short life span unless rider is light on brakes
Suitable For: DH, Dry XC, Ti Rotors
Conclusion: Best Performance, Short Life
Metallic Sintered
Also known as Compound T (Sintered)
Superior power in all conditions
Long wear pads, great for DH or XC
Consistent braking power in the wet
Almost unaffected by rain and snow
Copper back plate
Advantages: Better performing and longer lasting than most pads
Disadvantages: More expensive than medium pads
Suitable For: XC, DH (low brake use), All weather conditions, Mud
Conclusion: Solid Pads and Best All Rounders
Red Ceramic Compound - Hard
Also known as Compound D (Ceramic Hard)
Harder than ordinary pads. This is the highest density, hardest, ceramic compound for performance and longer lifetime. These organic disc brake pads contain a high amount of ceramic fiber, which insulate the brake system from friction heat up to 400oC.
Advantages: Better performing and longer lasting than medium pads
| DetailsUpgrade on original fitted pads
DIN 79100 Standard Approved
Organic Compound contains no metal material
Reduces damage to rotor
Carbonized compound reduces brake fading
Ceramic Fiber insulates brake system from friction heat
Non-Asbestos
|
Advantages: Longer lasting than Black Ceramic pads
Disadvantages: More expensive than Black Ceramic pads and not as grippy
Suitable For: XC, DH (low brake use)
Conclusion:
Advantages of a Ceramic Pad with Longer Life
Kevlar Compound
Also known as Compound V (Kevlar)
Contains Kevlar® brand fibre developed by DuPont.
Kevlar is a high strength synthetic fibre which dramatically improves the performance of these medium density pads and gives excellent braking power.
Advantages: Better performance than semi-metallic
Disadvantages: More expensive than semi-metallic and known to wear out faster in bad weather
Suitable For: XC, DH
Conclusion:
Performance Advantages of Kevlar