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Ships within 48 hours · Estimated delivery Jul 26 - Jul 31
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Description
Wossner Piston Yamaha YZ450F 03-04 / WR450F 03-11 (Pro) (Hi-Comp)Wossner is Germany's finest aftermarket forged piston and rod manufacturer and have over 25 years of experience in the high performance racing industry. Top European racers and FIM World Champions rely on Wossner for only the best pistons, rods and customer service. Features In house designed and manufactured; all forgings are produced in Wossner's company owned forging operation 4 stroke pistons are made using a double bridged forging design
Wossner is Germany's finest aftermarket forged piston and rod manufacturer and have over 25 years of experience in the high-performance racing industry. Top European racers and FIM World Champions rely on Wossner for only the best pistons, rods and customer service.
Features
- In-house designed and manufactured; all forgings are produced in Wossner's company-owned forging operation
- 4-stroke pistons are made using a double-bridged forging design
- Lightweight pistons with the tightest piston-wall clearances in the industry give you a quieter running engine
- All pistons include piston, ring, wrist pin and pin locks
- Wossner pistons are used by leading Supercross, Arenacross and MX GP teams
- Made in Germany
Specifications
- Piston Size: 94.97mm
- Oversize: +0.01mm
- Wossner Compression: 13.00:1
- OEM Compression: 12.50:1
- Number of Rings: 2
- Replacement Rings: RIK95.00
- Replacement Wrist Pin: WP053
- Replacement Circlip: CW18
NOTE: Wossner Piston Kits include the Piston, Wrist Pin, Circlips & Rings, Needle Bearings are not included.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 4
Hard to set day/date.
Color: A-Black
Watch very professional looking and appears to be well made. Everything about this watch is what I have been looking for at a reasonable price. The only issue I have is how to set the watches features, time, date, and day. The instructions are very clear and well written, to a point. That point being the instructions say to move the "crystal" to the first notch, to adjust the day/date, and the second notch for to set the time. What the instructions fail to mention is the day/date adjustment must be turned a full 24 hours to the next day or date settlings. Also, trying to hit just the second notch is almost impossible as the is no distinct way of knowing if you are in it or not,
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Reviewed in the United States on March 30, 2026
★★★★★ 5
Big face, easy to read.
Color: A-Green Luminous
Great watch ! Large face and hands makes it easy to read,
Backface glows in dark if enough light is exposed to it.
Showered a few times, no problem. Will hit the waves later this week.
Update on that later.
Very happy with purchase and seller. Can recommend.
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Reviewed in the United States on June 1, 2026
★★★★★ 5
Good price
Color: A-Green Luminous
I bought a return. It was 5 bucks cheaper.
It looks nice and wears well.
I like the color and material.
I did have a little issue with setting the date. The day is in English and Chinese. That's a first, lol. It's usually in English and Spanish.
It would be a nice gift for a youngster to learn military time.
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Reviewed in the United States on May 9, 2026
★★★★★ 3
Broke within first 3 month
Color: B-Green 2
I wore it for work due to no clock and not being able to look at phone on the clock. Instead of relying on managers to tell me the time and so on I bought this. Was quite reliable until I dropped it a few times then one day I could only tell time through the minute hand. Had to replace it with a digital because I do not trust a mechanical one at the moment due to this. Also the glow barely worked, it'd glow but not bright enough to tell time and not for long. I'd say I guess you get what you pay for although it should withstand dropped better internally. Durability sucks and comfort was there.
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Reviewed in the United States on September 8, 2024
★★★★★ 2
Nice looking, but Will Not Keep Time!
Color: C-Black Luminous 2
This is my second watch from this company. This was a different style! The first one ran perfect for 3 years! So I brought another one. This one, out of the box was slow. I changed the battery, still, slow! I even brought a second one from them, it too is running slow.
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Reviewed in the United States on March 31, 2026
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