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- Vertex Big Bore Piston Kit 23129B Compatible ...
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Item #:
43000709
Vertex Big Bore Piston Kit 23129B Compatible with/Replacement for Yamaha WR 250 F 2005-2013, YZ 250 F 2005-2007
Item #:
43000709
XCD 890
Price Details
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Imported from USA store
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Order now and get it around Friday, July 31
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100% New aftermarket Forged Big Bore Piston Kit built to meet OEM specifications
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What Stands Out
Enhanced Performance
The Vertex Big Bore Piston Kit boosts engine performance by increasing displacement, leading to improved power and torque for Yamaha WR and YZ models.
Durable Construction
Crafted from high-quality materials, this piston kit ensures superior durability and longevity under extreme conditions, ideal for off-road enthusiasts.
Easy Installation
Designed for a straightforward replacement process, this kit allows riders to upgrade their Yamaha models quickly, minimizing downtime and maximizing ride enjoyment.
Product Details
Who Should Buy?
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Performance Enthusiasts
Ideal for riders seeking enhanced power and torque for better performance on trails and tracks.
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Bike Modifiers
Great for users customizing their bikes, looking to upgrade pistons for improved engine efficiency.
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Rebuilders
Recommended for those rebuilding older Yamaha models, providing reliable performance and longevity in engine life.
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Casual Riders
Not suitable for casual riders who do not require high-performance upgrades in their standard bikes.
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Budget-Conscious
May not be ideal for those on a budget, as high-performance parts can be costly compared to stock options.
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New Riders
Less suitable for beginners who are learning and may not benefit from advanced enhancements like a big bore piston.
Product Description
Vertex Big Bore Piston Kit 23129B Compatible with/Replacement for Yamaha WR 250 F 2005-2013, YZ 250 F 2005-2007
About This Item
Upgrade your Yamaha WR 250 F or YZ 250 F with the Vertex Big Bore Piston Kit. This kit is compatible with models from 2005 to 2013, providing a forged big bore piston that will enhance your bike's performance. With a compression ratio of 12.5:1 and a cylinder bore of 80.000, this piston kit is designed to deliver exceptional power and torque. The piston has a diameter of 79.970 and a displacement of 270.00, allowing for increased performance on the trail or motocross track. The Vertex Big Bore Piston Kit includes everything you need for installation, including the piston, rings, pin, and clips.
The kit also comes with a +3mm size over STD, which increases the displacement to 269cc for even more power. Not only does this piston kit improve performance, but it also fits perfectly with your Yamaha WR 250 F or YZ 250 F. Before purchasing, be sure to verify that this part is compatible with your bike to ensure a proper fit. Take your riding experience to the next level with the Vertex Big Bore Piston Kit. Upgrade your Yamaha WR 250 F or YZ 250 F today and experience the power and performance gains this kit has to offer.
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Customer Questions & Answers
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Question:
What is included in the kit?
Answer: The kit includes a piston, rings, pin, and clips. -
Question:
What is the cylinder bore and piston diameter?
Answer: The cylinder bore is 80.000 and the piston diameter is 79.970. -
Question:
What models is this kit compatible with?
Answer: This kit is compatible with Yamaha WR 250 F 2005-2013 and YZ 250 F 2005-2007.
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“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
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“Accurate delivery timing given”
16 June 2026 · via Trustpilot
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“Not madly expensive like I thought, and much quicker than promised.”
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“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
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XCD 890
Order now and get it around Friday, July 31
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Features & Benefits
- Forged Big Bore Piston Kit with a 12.5:1 compression ratio
- Cylinder Bore: 80.000; Piston Diameter: 79.970
- +3mm makes 269cc Kit includes: Piston, rings, pin, clips
- Meets or Exceeds OEM Specs for Fit and Performance
- Compatible with/replacement for Yamaha WR 250 F 2005-2013, YZ 250 F 2005-2007
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