BUN Freestyle WAZ B21R 1200cc piston kit. Includes piston, circlips, wrist pin, and rings.
Stock bore is 92.00mm. 92.45mm is half over and 93mm is 1mm overbore.
*Upper rod (wrist pin) bearings can be found here.
*Not all sizes are stocked - some may be a special order part
Part Numbers:
- 92.00mm: 81-BUN9200
- 92.45mm: 81-BUN9245
- 93mm: 81-BUN9300
