Fisch Round Spark Arrestor NOT USFS APPROVED
Round 25 (25.5mm-29.4mm / 1.004�-1.157�)
Universal muffler fitment (as long as tail pipe is round)
Perfect for Dirt Bikes, ATVs, Enduro and other round tailpipes - see our sizing below.
Less than 10 min. installation time
Made from Stainless steel
Very durable and easy to remove for cleaning
High Quality component manufactured in BC, Canada
All necessary hardware included for the install (Set screws, Allen key and Loctite) 
This version is NOT USFS approved! For USFS approved sparkies click here
Maintenance every 15hrs � 20hrs for 2-Stroke (failure to do so will result in reduced air flow)
As the mesh openings are twice the size as our USFS approved Spark Arrestors, these do work with some TPI model bikes. Being that they have no approval, use these Spark Arrestors at your own discretion.