This kit is specifically designed for SR25 platforms with a V2.5 gearbox, which is longer than a standard gearbox. Therefore, it is not compatible with generic setups: the fit depends on the specific geometry of the SR25.
The system is designed to mount a Polarstar F2 engine with direct attachment onto a Polarstar hop-up chamber, ensuring a clean and precise integration between the engine and the hop-up.
What You Should Keep in Mind
- Compatible with SR25.
- Designed for extended V2.5 gearbox.
- Configuration designed for Polarstar F2 direct attachment.
- Direct attachment mounting.
- Uses Polarstar hop-up.
Important
Not all combinations of SR25, gearbox, and hop-up are the same. Before ordering the kit, be sure to confirm exactly which version of the SR25 you have and which hop-up chamber you’re using to ensure proper compatibility.
Frequently asked questions
Can it be installed without the F2 screw-on cap?
No, this kit is only for that combination.
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