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Vertex Yamaha YZ125 05-21 53.96mm Replica Piston Kit
SKU:Description
VERTEX PISTON KIT
KIT INCLUDES
- Piston
- Piston rings
- Wrist pin
- Wring pin circlips
- Bore Size: 53.96MM
- Compression Ratio: Standard Compression
Manufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle manufacturers. Vertex piston rings are manufactured to the highest standards in Japan, and are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in dirt bike performance.
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 to 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.
Aiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt. All pistons are heat treated with a T-5 or T-6 hardening and tempering cycle.
Note: Image for reference only, product may vary slightly for fitment.
**Please note: It is a necessary requirement to check and measure cylinder size before ordering and fitting pistons. Please adhere to manufacturer recommendations for correct tolerances.
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Bike Fitment
If your bike is listed below, this product will suit it.
Yamaha (20)
- Yamaha YZ125 2005
- Yamaha YZ125 2006
- Yamaha YZ125 2007
- Yamaha YZ125 2008
- Yamaha YZ125 2009
- Yamaha YZ125 2010
- Yamaha YZ125 2011
- Yamaha YZ125 2012
- Yamaha YZ125 2013
- Yamaha YZ125 2014
- Yamaha YZ125 2015
- Yamaha YZ125 2016
- Yamaha YZ125 2017
- Yamaha YZ125 2018
- Yamaha YZ125 2019
- Yamaha YZ125 2020
- Yamaha YZ125 2021
- Yamaha YZ125X 2020
- Yamaha YZ125X 2021
- Yamaha YZ125X 2022
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Delivery & Returns
SHIPPING
All orders received by 2pm weekdays are dispatched the same day when purchasing in-stock items. MXexpress get priority picking to improve the speed that we get your order out.
RETURNS
If you receive any items that you are unhappy with for any reason, simply return to us within 60 days in the condition that you received them and we will happily offer a store credit or refund.
Your country may impose additional taxes on your order from us. If your package is identified and meets the criteria, your local customs agency may hold your package until you pay any outstanding duty.
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Four payments of $51.19
In Stock - Ready to ship!