PISTON KIT VERTEX 79.97MM BIG BORE YAMAHA WR250F 15-19 YZ250F 14-18
PISTON KIT VERTEX 79.97MM BIG BORE YAMAHA WR250F 15-19 YZ250F 14-18
Out of stock
Vertex pistons are manufactured in Italy and are the premier brand of replacement pistons around the world. Their pistons are trusted by OEMs such as KTM, Husqvarna, Beta, and Gas Gas. The company offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersports use. Vertex collaborates with factory race teams on piston design, which allows them to build on their outstanding dedication to quality while continuing to bring their products to market at an affordable price.
Vertex piston kits include 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 phase of each piston.
Forged Pistons for 4 Stroke
Four-stroke engines have much higher cylinder pressures when compared to two-strokes and are generally manufactured from forgings. To handle the internal pressures of a four-stroke engine, Vertex’s four-stroke pistons are forged from the highest quality 2618 aluminum alloy for superior strength and durability. Vertex uses unique piston profiles and compression ratios, offered in A, B, C, and D sizes, to maximize power and performance while reducing blow-by and oil consumption.
Cast Pistons for 2 Stroke
Because of a cast piston’s 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.
SHIPPING
SHIPPING
Orders can be shipped from either Auckland, Hamilton, Tauranga, New Plymouth, Wellington or Christchurch warehouses. Depending on the location of items you have ordered, DR MOTO will ship your purchase from the closest location where possible.
New Zealand
Free shipping on orders over $149.00 - Excludes Motorcycles, ATV's , Electric Bikes and dangerous goods.
For orders under $149.00, shipping throughout New Zealand is $9.99 North Island and $15 South Island
In most cases shipping is overnight however it can take 2-3 days depending on time/day the order was placed. If delivery is to a rural address please allow a couple of extra days. We can ship to your place of work!
RETURNS
RETURNS
Any goods purchased from DR MOTO can be returned within 14 days of receipt for refund or exchange.
The goods must be returned new, unused, unaltered, not previously installed, and in a sellable condition with all of the original packaging.
This right of return will not cover items that are special orders and found to be an incorrect fit, this is the responsibility of the purchaser, however all other standard warranties will apply.
Freight costs will not be refunded.
Please refer to our returns policy for full details
FITMENT GUIDE
FITMENT GUIDE
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