Front brakes
- Thread starter Dean-uk
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Four. 1985-1992 has two opposed pistons. You should have two pairs of pistons. They are opposite/opposed.
Cars and trucks often have one moving piston, and the other side brake pad is fixed, it doesn't move. This design is often called 'single-sliding' piston/caliper. The Honda SOHC inline-4 750cc which started the hydraulic disc brake use on motorcycles had a design like this. The first pic shows the movable-piston housing casting on the upper side, and the fixed, no piston caliper brake pad bracket on the lower side.
An interesting fact is MV Agusta used a mechanical disc brake on their early inline-4's, it was cable-operated. Racers of the day usually had drum brakes, with 'leading shoes.' Some of the more advanced designs had as many as eight shoes! Oldani, Grimeca, Ceriani, Fontana and others were popular.
The MV Agusta DOHC inline-4 with cable-operated disc brakes:
This shows the twin leading shoe design drum brake used on the popular CB77 Honda Superhawk, which was made through 1967. Look at the horizontal bar above the front axle which attaches to the brake shoe actuating levers. The front of each brake shoe first makes contact with the drum, hence the 'leading-shoe' designation. The cheaper design is to use a single brake actuating arm, with no linking rod, this design is a 'leading-shoe, trailing-shoe' design. One brake shoe has the front of it contacting the brake drum, while the other brake shoe has its trailing or rear of the brake shoe first contacting the brake drum.
Cars and trucks often have one moving piston, and the other side brake pad is fixed, it doesn't move. This design is often called 'single-sliding' piston/caliper. The Honda SOHC inline-4 750cc which started the hydraulic disc brake use on motorcycles had a design like this. The first pic shows the movable-piston housing casting on the upper side, and the fixed, no piston caliper brake pad bracket on the lower side.
An interesting fact is MV Agusta used a mechanical disc brake on their early inline-4's, it was cable-operated. Racers of the day usually had drum brakes, with 'leading shoes.' Some of the more advanced designs had as many as eight shoes! Oldani, Grimeca, Ceriani, Fontana and others were popular.
The MV Agusta DOHC inline-4 with cable-operated disc brakes:
This shows the twin leading shoe design drum brake used on the popular CB77 Honda Superhawk, which was made through 1967. Look at the horizontal bar above the front axle which attaches to the brake shoe actuating levers. The front of each brake shoe first makes contact with the drum, hence the 'leading-shoe' designation. The cheaper design is to use a single brake actuating arm, with no linking rod, this design is a 'leading-shoe, trailing-shoe' design. One brake shoe has the front of it contacting the brake drum, while the other brake shoe has its trailing or rear of the brake shoe first contacting the brake drum.
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It actually depends on what country your bike is from.
In the US the ‘93 has 4 pot like mentioned above, but in Canada for example, the ‘93 has two pot Calipers.
In ‘93, Canada received the ‘92 US version. Not sure why.
In the US the ‘93 has 4 pot like mentioned above, but in Canada for example, the ‘93 has two pot Calipers.
In ‘93, Canada received the ‘92 US version. Not sure why.
one2dmax
Well-Known Member
You have a picture of what you have?
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