Beta Trial 4-stroke Spanish Fly Spark Arrestor Spanish Fly

Big news! We have just received USFS approval for our new trials spark arrestor models. These new models maintain the same aluminum body but have a new patent pending pleated screen design to increase open surface area to meet USFS requirements.

The new USFS approved spark arrestor screen design incorporates a pleated conical screen shape. This patent pending shape provides two major benefits:
(1) The pleated shape allows for a significant increase in active open screen surface area, approximately 230% more than our previous screen. This allows the screen to easily meet USFS open screen area requirements and also reduces clogging by providing more area for exhaust flow.
(2) The conical shape places the majority of the screen surface area parallel to exhaust gas flow rather than perpendicular, this ensures that in stream particulate is not forced into the screen openings but rather across the conical surface where it is collected at the bottom of the screen. This localization of particulate helps to further reduce clogging & increase time between service/cleaning intervals.

USFS approved spark arrestor end cap insert for all Beta EVO four stroke models. These inserts require welding an adapter, choose stock/stainless or titanium silencer above.

Technical Data:
-USFS screen type spark arrestor end cap
-Adaptor- 304L stainless steel
-Body-anodized 6061-T6 aluminum
-Screen-stainless steel
-Sealing-size 124 viton O ring
-Set screw- stainless steel 4X0.7mm metric 2mm allen head
-Weight- 40grams/1.41oz

Looking for anything at all for your Beta that isn’t listed? Please write [email protected] and I’ll get it added for you!

Beta Trial 4-stroke Spanish Fly Spark Arrestor
Produced by Spanish Fly Racing of USA