- This is our ONLINE STORE, not all Products are kept at our showroom location. To view stock in our Tauranga store please contact us with 3 days notice. Products purchased online will be shipped from our warehouse to your address within 3 days of purchase date.
- Any questions? Please call the friendly Bayride team on 07 571 3040.
- No returns on sale items.
Vertex piston kits inc the piston, rings, wrist pin and circlips. The pistons are heat-treated with a T-6 hardening and tempering cycle. Also, a molybdenum disulphide skirt coating is used for reducing wear and improving the break-in of each piston.
Vertex Pistons have launched a new version for 2 stroke off-road pistons named Race Evolution. These exotic pistons, tested by the existing supported racing teams, are specifically for racing application and stand out from the other product lines by reduced top land, 0,8 mm special ring, special MoS2 coating featured by specific pockets to facilitate cylinder/piston smoothness and new special dedicated racing profile. Features that make these Vertex pistons particularly performing and at the same time very reliable.
Race Evolution.
Single ring flat top
Ring part number 56507805400
Cast Piston for 2 Stroke
Because of a cast pistons ability to contain higher silicon content compared to forged pistons, and because two strokes have lower cylinder pressures when compared to four-strokes, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminum alloy with
18% silicon content. Silicon is important because:
- It decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.
- Silicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt.