Front brake caliper piston set for 612 with CCM disks.

Stainless steel ground & electro polished pistons.

2 x 28mm Pistons
2 x 32mm Pistons
2 x 38mm Pistons

Identical to OEM design apart from materials used are the corrosion resistant 316L Stainless steel - Origin parts are nickel plated aluminium that has a problem of corroding if the nickel plating lifts off.