Wiseco standard / stock 74.00mm bore piston kits. 13:1 Compression ratio. Includes (4) pistons, (4) sets of rings, (4) pins, (4) pairs of c-clips.
ITEM FITS:
1999-2003 Yamaha YFZ-R1
2001-2005 Yamaha FZ1
13:1 Comp. Ratio
(4) 4707M07400
Wiseco standard / stock 74.00mm bore piston kits. 13:1 Compression ratio. Includes (4) pistons, (4) sets of rings, (4) pins, (4) pairs of c-clips.
ITEM FITS:
1999-2003 Yamaha YFZ-R1
2001-2005 Yamaha FZ1
13:1 Comp. Ratio
(4) 4707M07400