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Cometic Gasket is the world leader in custom multi-layer steel head gaskets for performance and motorsport engines. From off-the-shelf MLS for popular platforms to bespoke gaskets for race-only builds, Cometic seals everything from Honda B-series to LSX.
Ensure your Beta 250 RR or 300 RR performs reliably on the toughest trails with this Cometic Top End Gasket Kit. Engineered for the demanding nature of enduro and off-road riding, these gaskets are designed to withstand the extreme thermal cycling and high vibrations typical of 2-stroke engines. Cometic’s commitment to quality ensures a perfect seal every time, preventing coolant and compression loss.
A top-end rebuild is critical for maintaining the power and throttle response of your Beta. By replacing your old gaskets with this premium Cometic set, you ensure that your engine maintains optimal compression ratios, leading to better fuel efficiency and power delivery. This kit is a must-have for any serious rider performing scheduled maintenance or a full top-end overhaul. Don't compromise on your engine's health; choose the best gaskets available. Explore our full catalog of specialized engine components at GGCRACING.
| Brand | Cometic Gasket |
|---|---|
| Manufacturer part number | C3765 |
| GGC SKU | CGSC3765 |
| UPC / GTIN | 191070488963 |
Use the manufacturer part number when you compare with other listings or ask us to confirm a match.
| Box size | 7 × 6 × 0.25 in |
|---|---|
| Shipping weight | 0.14 lb |
| Year | Make | Model | Trim |
|---|---|---|---|
| 2020 | Beta | 250 RR | Base |
| 2013-2019 | Beta | 250 RR (2 Stroke) | Base |
| 2020 | Beta | 300 RR | Base |
| 2013-2019 | Beta | 300 RR (2 Stroke) | Base |
| 2015 | Beta | 300 Xtrainer | Base |
| 2017-2020 | Beta | 300 Xtrainer | Base |
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