Two-stroke motors live or die on clean intake and the right pre-mix routine. This range covers Putoline two-stroke oil alongside model-specific replacement air filters built for KTM, Gas Gas and Sherco enduro machines, so your engine runs the fuel ratio it was designed for and pulls clean air, ride after ride.
Two-stroke pre-mix oil and model-fit air filters
Two-stroke engines rely on oil mixed into the fuel to lubricate the crank, bearings and piston on every stroke. Run the pre-mix ratio your engine builder specifies, commonly between 32:1 and 50:1 for modern enduro and motocross motors. The Putoline range here supports that routine, sitting alongside model-specific replacement air filters cut to fit KTM, Gas Gas and Sherco machines so the seal sits flush against the airbox with no bypass.
| Item | Application | Key fact |
|---|---|---|
| KTM air filter | KTM 2-stroke 1998 to 2007, 85 2003 to 2009 | Model-year specific fitment |
| Gas Gas air filter | 125, 250 and 300 from 2007 to 2017 | 10 model years of coverage |
| Sherco air filter | Enduro 125, 250 and 300 from 2014 to 2020 | 6 model years of coverage |
| Putoline pre-mix oil | 2-stroke motors | Brand-matched to your ratio |
How to choose
Match the part to your make, displacement and year first. A 250 from 2008 and a 250 from 2017 can look alike yet differ at the mounting flange, so the year range printed on each product is the deciding spec. For pre-mix oil, lock in the ratio your motor was built for, then keep it consistent, commonly 32:1, 40:1 or 50:1 across the 125, 250 and 300cc capacities. A correctly fitted air filter protects that same top end from grit. Re-oil and reseat the filter on a regular schedule in dusty conditions, and keep a spare ready so a 5-minute swap at the trailhead keeps dirt out of the barrel.
Frequently asked questions
Which bikes do these air filters fit?
The range covers model-specific replacement filters for KTM 2-stroke and 85 models from 1998 to 2009, Gas Gas 125, 250 and 300 from 2007 to 2017, and Sherco Enduro 125, 250 and 300 from 2014 to 2020. Always match your make, displacement and year to the fitment printed on each product.
What pre-mix ratio should I run with two-stroke oil?
Most modern two-stroke enduro and MX engines run between 32:1 and 50:1, but always follow the ratio your engine builder or owner manual specifies. Keep the ratio consistent across the 125, 250 and 300cc capacities and pair it with a clean, well-sealed air filter to protect the top end.
Why does Putoline pair with model-specific air filters here?
Two-stroke care is a system. Putoline pre-mix oil lubricates the crank, bearings and piston on every stroke, while a correctly fitted air filter keeps grit out of that same barrel. Running both together protects the motor far better than getting one right and neglecting the other.