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Description
sequential gear OS-FR Series Sequential GearboxDescription The OS FR5 and OS FR7 Sequential Transmissions are specifically designed for use in JDM sport compact and roadster vehicles. The FR of OS FR series name designates the front engine, rear wheel drive vehicle specific application for this transmission series. OS FR series Sequential Transmissions are designed with tear drop shaped transmission housing and top mounted gear selector to allow ease of fitment in limited transmission tunnel space
Description
The OS-FR5 and OS-FR7 Sequential Transmissions are specifically designed for use in JDM sport-compact and roadster vehicles.
The “FR” of OS-FR series name designates the front-engine, rear-wheel-drive vehicle specific application for this transmission series. OS-FR series Sequential Transmissions are designed with tear-drop shaped transmission housing and top-mounted gear selector to allow ease of fitment in limited transmission tunnel space often found in compact FR vehicles. A few examples of vehicles suited for the OS-FR series transmission are Mazda MX-5 (NA/NB), Mazda RX7 (FD), or Honda S2000.
OS-FR5
The OS-FR5 is a 5-speed iteration of OS-FR series Sequential Transmission that is designed to handle high torque and power output, while remaining within the spatial constraints of compact FR vehicles. Developed through vigorous testing, the dog-ring and gear design of FR5 allows relatively low shifting efforts for its torque capacity. Manufactured with carefully selected raw-forged materials, the OS-FR5 can handle up to 575 ft/lbs of torque.
OS-FR7
The OS-FR7 is Japan’s very first 7-speed sequential transmission. Contrary to common designs where there is a direct-drive gear within the transmission, the FR7 does not have a direct-drive gear due to a unique drop-gear design. The drop-gear design minimizes shifting effort and allows quick and precise shifting. Along with the ease of shifting, the spread of 7 gears in FR7 allows the vehicle to easily stay in power band regardless of the engine characteristics. Manufactured with carefully selected raw-forged materials, the OS-FR7 can handle up to 430 ft/lbs of torque.
FR5 & FR7 Gear Ratios
|
|
1st |
2nd |
3rd |
4th |
5th |
6th |
7th |
|
Standard FR-5 |
2.573 |
1.830 |
1.431 |
1.195 |
1.000 |
|
|
|
Standard FR-7 |
2.713 |
1.882 |
1.575 |
1.318 |
1.098 |
0.941 |
0.822 |
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