A Brake wear indicator is used to warn the user and/or owner of a vehicle that the brake pad is in need of replacement.
 The main area of use for this is on motor vehicles with more than three wheels.
 However brake wear indicators are also useful for brake pads in industrial applications, including wind turbines and cranes.
Power brakes are a system of hydraulics used to slow down or stop most motor vehicles.
 It uses a combination of mechanical components to multiply the force applied to the brake pedal by the driver into enough force to actuate the brakes and stop a vehicle that can weigh several tons.
 The brake pedal is connected to the vacuum booster which is the first step of the force multiplication.
 The booster passes the force to the master cylinder which compresses a liquid and forces it through the brake lines to the brakes themselves.
 The liquid that is pushed into the brakes activates the brake calipers which in the case of disc brakes, push against the brake rotor causing friction that slows and eventually stops the rotation of the vehicles wheels.
 In drum brakes, pistons push two shoes against the brake drum accomplishing the same effect.
An air brake or, more formally, a compressed air brake system, is a type of friction brake for vehicles in which compressed air pressing on a piston is used to apply the pressure to the brake pad needed to stop the vehicle.
 Air brakes are used in large heavy vehicles, particularly those having multiple trailers which must be linked into the brake system, such as trucks, buses, trailers, and semi-trailers in addition to their use in railroad trains.
 George Westinghouse first developed air brakes for use in railway service.
 He patented a safer air brake on March 5, 1872.
 Westinghouse made numerous alterations to improve his air pressured brake invention, which led to various forms of the automatic brake.
 In the early 20th century, after its advantages were proven in railway use, it was adopted by manufacturers of trucks and heavy road vehicles.
The Honda Bali is a 100 cc two-stroke twist and go scooter from Honda.
 The scooter has self-starter and autolub system to mix two-stroke oil with fuel.
 The top speed with 85 kg load is around 80 km/h.
 Front brake is disc while rear is drum.
The Ausco-Lambert disc brake is an unusual brake where an axially-expanding shoe assembly is sandwiched between two linked rotating discs.
 It may be thought of as an "inside out" disc brake: instead of pads pinching a disc, the pads expand inside a hollow disc.
The Honda SH50 is a 49 cc , air-cooled, two stroke, single cylinder, scooter style, restricted moped manufactured by the Honda Motor Company between 1984 and 2006, with substantial revisions for the 1996 model year.
 It was equipped with continuously variable automatic transmission, (Honda V-Matic transmission) together with both electric and kick start, automatic choke and capacitor discharge electronic ignition.
 Brakes were drum front and rear, (disc front on later models) operated pedal-cycle style by two handlebar levers.
 The early models had some resemblance to Honda's C50/70/90 Super Cub range with a similar shape, dual seat and rear carrier, but with a scooter type floor, unlike the P series of mopeds such as the Honda PC50 or the Honda Express N series, which had cycle style construction.
 The SH50 was also known as the City Express and in some markets, as the Scoopy.
 All models had cycle type wheels as against the smaller wheels of later 50cc scooter style mopeds.
 The battery, fuel tank and two-stroke-oil reservoir were contained under the seat.
 Electrics were 12 volt and a handlebar mounted binnacle, which effectively formed part of the front bodywork, contained basic instrumentation and warning lights.
The Honda Capa, with the Honda series code GA4 and GA6, is a supermini MPV five-door hatchback produced by Honda between 1998 and 2002.
 It was introduced at the 1997 Tokyo Motor Show as the concept car "J-MW."
 It was introduced for retail sale April 24, 1998.
 The only engine the Capa had was the 98 hp 1.5L Honda engine, the D15B, with either a 4-speed automatic transmission (front-wheel drive only) or a CVT called "Multimatic S".
 September 16, 1999 a 4WD version of the Capa was released, using Honda's Full-Time four-wheel-drive system.
 Brake Assist was offered as standard equipment.
 Due to disappointing sales the Capa, short for "capacity", it was discontinued and replaced by the Honda Mobilio and Honda Fit.
 It was sold in Japan at two Honda dealership sales channels "Honda Primo", and "Honda Verno".
Brake pads are a component of disc brakes used in automotive and other applications.
 Brake pads are steel backing plates with friction material bound to the surface that faces the disc brake rotor.
A disc brake is a type of brake that uses calipers to squeeze pairs of pads against a rotor (or "disc") in order to create friction that retards the rotation of a shaft, such as a vehicle axle, either to reduce its rotational speed or to hold it stationary.
 The energy of motion is converted into waste heat which must be dispersed.
 Hydraulic disc brakes are the most commonly used form of brake for motor vehicles but the principles of a disc brake are applicable to almost any rotating shaft.
A drum brake is a brake that uses friction caused by a set of shoes or pads that press outward against a rotating cylinder-shaped part called a brake drum.

Question: What type of brake uses calipers to squeeze pairs of pads against a rotor that are featured on the Honda Bali scooter?
Answer: disc brake