Includes rings, wire locks, and wrist pins - 81.5mm bore, 9:1 CR, 86.4mm stroke (stock)
*For use with 20mm wrist pin connecting rods*
Includes rings, wire locks, and wrist pins - 81.5mm bore, 9:1 CR, 86.4mm stroke (stock)
*For use with 20mm wrist pin connecting rods*
81.5mm bore (oversized), 9.0:1 compression ratio, 86.4mm stroke- includes rings, wrist-pins, & circlips
+.5mm bore size: Overbore pistons require additional machine work including a cylinder bore and hone, this work must be performed by a machine shop
81mm bore (factory bore), 9.0:1 compression ratio, 86.4mm stroke - includes rings, wrist-pins, & circlips
82mm bore (oversized), 9.0:1 compression ratio, 86.4mm stroke - includes rings, wrist-pins, & circlips
+1mm bore size: Overbore pistons require additional machine work including a cylinder bore and hone, this work must be performed by a machine shop
82.5mm bore (oversized), 9.0:1 compression ratio, 86.4mm stroke - includes rings, wrist-pins, & circlips
+1.5mm bore size: Overbore pistons require additional machine work including a cylinder bore and hone, this work must be performed by a machine shop
Supertech .5mm oversized piston set including 20mm wrist pins.
Includes rings, wire locks, and wrist pins - 81mm bore (stock), 8.5:1 CR, 86.4mm stroke (stock)
*For use with 20mm wrist pin connecting rods*
Includes rings, wire locks, and wrist pins - 81.5mm bore (0.5mm overbore), 8.5:1 CR, 86.4mm stroke (stock)
*For use with 20mm wrist pin connecting rods*
Includes rings, wire locks, and wrist pins - 82mm bore (1mm overbore), 9.25:1 CR, 86.4mm stroke (stock)
*For use with 20mm wrist pin connecting rods*
Includes rings, wire locks, and wrist pins - 82mm bore, 9:8 CR, 86.4mm stroke (stock)
*For use with 20mm wrist pin connecting rods*
Includes rings, wire locks, and wrist pins - 81mm bore (stock), 9:1 CR, 86.4mm stroke (stock)
*For use with 20mm wrist pin connecting rods*
Supertech 1mm oversized piston set including 20mm wrist pins.
Set of rings for one piston in 81.00mm size, For Supertech pistons only.
Set of rings for one piston in 81.50mm size, For Supertech pistons only.
This product was last offered at the strikethrough price on
06-08-2026
Set of rings for one piston in 82.00mm size, For Supertech pistons only.
Set of rings for one piston in 82.50mm size, For Supertech pistons only.