Brake Disc

Before this inspection, brake pads must be removed.

Check disc surface for scratches in wearing parts. Scratches on disc surface noticed at the time of specified inspection or replacement are normal and disc is not defective unless they are serious.

But when there are deep scratches or scratches all over disc surface, replace it. When only one side is scratched, polish and correct that side.

Front brake disc thickness "a" 

Standard: 17 mm (0.669 in.) 

Limit: 15 mm (0.590 in.) 

Fig 1: Measuring Brake Disc Thickness

Courtesy of SUZUKI OF AMERICA CORP.

Use wheel nuts (1) and suitable plain washers (2) to hold the disc securely against the hub, then mount a dial indicator (3) as shown in the figure and measure the runout at 25 mm (0.98 in.) from the outer edge of the disc.

Front brake disc deflection 

Limit: 0.15 mm (0.006 in.) 

Fig 2: Measuring Deflection Of Brake Disc

Courtesy of SUZUKI OF AMERICA CORP.