Yamaha FZ-07/MT-07 Overbore High Compression Piston Kit-83mm 742.33cc
Spears Racing Piston Kits have been winning races and Championships all over the world for over 4 decades. Spears Racing pistons have been in several of the race wins in close course racing and in road circuits in Europe and has won the Isle Of Man TT Twins several times. These pistons have been used by several AMA Flat track Race teams.
9 in stock
The Spears Racing branded piston (Preferred Performance) have been winning races and Championships all over the world for over 4 decades. Spears Racing pistons have been in several of the race wins in close course racing and in road circuits in Europe and has won the Isle Of Man TT Twins several times.
Spears Racing Piston Kits for the Yamaha FZ/MT07 and now the R7 have been the piston of choice by several of the American Flat Track (AFT) teams
Spears Racing’s High Compression Overbore Pistons FZ07/MT07 Pistons +3 kit 13.0 to 1 kit includes pistons, rings, lighter wrist pins, cir clips . The compression is 13 to 1. Dome features smooth flowing radius, under crown machining to lessen the overall weight. Anti Det. Grooves, Acc Grooves, Double Broach Grooves for extreme applications including professional competition.
Spears race pistons with the State of the Art CNC Machining and manufacturing alliances with JE Pistons for decades. Spears Racing continuous committed to excellence to advance as the industry changes. This commitment has resulted in more forgings specific to certain applications, proprietary treated wrist pins and piston rings manufactured only for us. Each of these aspects has been put through stringent research and development stages to ensure that our product will exceed your standards.
At the forefront of performance, piston manufacturing has been a result of continuous research and development of unique materials, piston designs and technologies. Utilizing State of the Art CNC machines for manufacturing, along with purpose-designed forgings, while being able to maintain exacting specifications on each and every piston – holding tolerances to millionths of an inch
Overbore Pistons FZ07/MT07 Piston Terminology for Spears Racing Pistons:
This FZ07 Race Pistons kit will need to be bored and re-plated with a Nickel Silicon Carbide (NSC) cylinder plating process and cylinder services. This NSC process is so superior to factory plating is often used by professional race teams all over the world to re-plate brand new OEM cylinders
“Preferred Performance” Pistons Kits By Spears Racing
Spears Racing’s High Compression Overbore Pistons FZ07/MT07 +3 kit 13.0 to 1 Includes the Following:
Large Valve Pockets for 1mm over valves (Each Piston dome is complete deburred /Brushed to knocked down to have no Sharpe angles to create hot spots)
Pistons x 2
Wrist Pins x 2
Piston Rings x 2
Cir Clips x 4
Piston Weight:231 grams