These adapters fit neatly into the stock plastic end cap by replacing an existing rubber grommet (see installation instructions for more info). The adapter provides just enough exposed tube length to mount a TRS-1 spark arrestor external to the plastic end cap. The inside diameter of the adapter exposed to exhaust flow matches that of the existing tube so no additional flow restriction is created. Use of this adapter allows the spark arrestor to be mounted outside of the end cap for easy removal & cleaning. Note TRS-1 spark arrestor must be purchased separately or in the BT-4 adapter & TRS-1 spark arrestor KIT.
Note: Anodized color will fade due to heat, UV light, & chemical exposure.
Applications: Beta EVO two stroke models,125-300cc engine sizes for years 2009-2024.
Part # BT-4 Technical Data:
Body-anodized 6061-T6 aluminum
Sealing/Fitting- (2X) size 123 viton O rings
Weight- 44 grams/1.6 oz