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83.53 USD (13,316 JPY)
Delivery Information
This item is discontinued.
Type: Air cleaner compatible type
**This product cannot be installed on FI vehicles.
*Air cleaner compatible models may not be able to be installed depending on the model year.(Unconfirmed).
* The image is only for reference. The image shown may differ from the actual product.
RPSR03 series(Compatible with SR400 and SR500)
This model is 11mm shorter than the conventional crank response.
New design and improved performance.
You can see the difference as soon as you drive.
In the engine, the piston moves up and down, so it is like breathing.
When the piston is rising, it pulls the air in the crankcase, and when the piston is working, it pushes the air in the crankcase.
stock, the same amount of air moves to the crankcase, but by making a small difference in the amount of air trying to return to the crankcase, the piston movement feels lighter and stronger.
◆What does BORE-ACE think?
If the engine does not breathe, the water will mix with the oil and the engine will not be able to show good performance.
For example: It is better to open the window to dry the bathroom.
For example: A state like carbonara.
BORE-ACE created the best condition by slightly reducing the amount of air to return.
Black pressure reducing hose with large inner diameter is available as an option.
Points of Attention
* If there may be an instruction manual included, it will be written in Japanese.
Reviews with image
Fits:YAMAHA
Mar 21, 2022
It looks just like I thought it would.
The Engine's rotation was somewhat lighter.
I thought the air pressure inside the Engine was working well or something like this. I don't get dramatic acceleration or anything like that, but I don't feel stuck anymore.
Review detail
