Power
starts

here

here >>

MORE AIR = MORE POWER

This is where it all began. Over 50 years ago, the sandy, gritty soil of The Netherlands – and the resulting engine failures – proved that single-foam and paper filters gave riders air flow, but failed at protection. Twin Air’s breakthrough, fused-dual-layer design (now widely copied) combined performance and protection. The fused layers of open-pore foam and fine inner foam trap even the smallest particles. The new, rounder design boosts airflow. So do the minimized seams made possible by a revolutionary micro-gluing process: Shorter seams = more foam = more flow.

Original

MOTORCYCLE • ATV • UTV

FOAM AIR FILTER

Twin Air Original Foam Air Filters

DESIGNED FOR YOUR BIKE
No “universal fits” at Twin Air – we have molds for 1500+ different model motorcycles dating back to 1965.

WASHABLE AND REUSABLE 
Reusing a Twin Air filter 30 times is common.

DUAL-LAYER FOAM
Made to our specifications, with cells that are evenly sized and distributed.

MINIMIZED SEAMS
Made possible by a revolutionary micro-gluing process. 

GREASELESS SEALING RING 
ASSEMBLED BY HAND

And inspected for a perfect fit. 

PACKAGED IN A RESEALABLE AND REUSABLE BAG

•  DESIGNED FOR YOUR BIKE (no “universal fits” at Twin Air – we have molds for 1500+ different model motorcycles dating back to 1965) • WASHABLE AND REUSABLE (reusing a Twin Air filter 30 times is common) • DUAL-LAYER FOAM made to our specifications, with cells that are evenly sized and distributed • MINIMIZED SEAMS made possible by a revolutionary micro-gluing process • GREASELESS SEALING RING • ASSEMBLED BY HAND and inspected for a perfect fit • PACKAGED IN A RESEALABLE AND REUSABLE BAG

Twin Air Original Filters Inside

Some applications have a flame-retardant foam layer laminated to the filter that eliminates the restrictive, stock backfire screen.

Twin Air Original Filters Backfire Bottom

Some applications have a flame-retardant foam layer laminated to the filter that eliminates the restrictive, stock backfire screen.

Bio

MOTORCYCLE • ATV • UTV

FOAM AIR FILTER

Twin Air Bio Foam Air Filters

For many years, Twin Air Factory Pre-Oiled filters were only available to our top professional race teams and OEM customers. The results were so good that in 2005 we made them available to everyone.

The same features as the Original filter, with the added convenience of wash-down-the-drain cleaning. A Dual-Stage Air Filter is submerged in BIO Liquid Power Filter Oil, massaged to ensure all pores are evenly coated, and placed in a temperature-controlled room to allow the oil to completely cure. You just open the resealable bag and install.

Power

FLOW

MOTORCYCLE • ATV • UTV

KITS

TAKE A DEEP BREATH

The best filter in the world can’t do its job if there are leaks in the seal of the airbox. Twin Air’s PowerFlow Kits ensure a leak-proof, fool-proof fit with a rigid, lightweight aluminum cage that replaces your flimsy, plastic stock cage and, when needed, a billet-aluminum flange that bolts tight to your airbox.

PowerFlow Kits are custom-designed to each unique application for superior airflow, improved sealing surface, removal of the restrictive backfire screen, and ease of service.

All Kits include a BIO Factory Pre-Oiled Air Filter. Replacements are available separately.

HONDA
CRF450R/CRF250R


Twin Air Filter Accessories Dust Cover

DUST
COVERS

Fit this over your Twin Air Filter when you’re riding in severe conditions such as heavy dust and sand. This coarse foam pre-filter, oiled for maximum benefit, will act as an additional layer of protection and extend the service time between filter cleanings.

Twin Air Filter Accessories Airbox Vents
Twin Air Filter Accessories Airbox Vents

AIRBOX
VENTS

Twin Air’s vent system opens the way for maximum airflow, while our fine-toothed GP Filter Cover protects your engine from dirt and debris. The unique two-piece design installs in a snap, with a foam seal that ensures a leak-proof fit. Includes a black outer cover to close off the vents during extreme conditions. Round or oval. 2 vents and caps per pack.

Twin Air Filter Accessories Fuel Filters

FUEL
FILTERS

You’d be amazed at the dirt and debris that can work its way into your gas can – and from there, your fuel tank. Twin Air’s monofilament screen pocket inserts in your tank to catch particles as small as 40 microns (.00165”) while allowing the gas to flow freely. The flange is custom-sized for each modern 4-stroke model to ensure a leak-proof seal. Just remove the filter periodically, turn it inside-out, and clean out the debris that could have been in your engine.

Twin Air Filter Accessories Oil Filters

OIL
FILTERS

The company that set the clean air standard for your engine extends their expertise to oil filters. Now there’s only one name you need to remember for maximum protection, performance and value in all of your filters and related products: Twin Air.

RADIATOR
SLEEVES

Shed mud, dirt and sand before it can build up and choke your radiator. Install in a snap – simply remove the radiator louvers and slide this tough, breathable barrier of nylon-coated, glass yarn mesh over them. Elastic bands ensure a snug fit, with holes pre-punched for mounting pins as models require.

Two bikes after riding in the same moto. The bike radiator without Twin Air Radiator Sleeves was full of mud and overheated.

RADIATOR
SHIELDS

A newly-developed TPU material prevents mud build up on the radiator louvers; allowing the radiator to continue to maintain operating temperature. Universal fit and easily mounted with zip-ties.

Twin Air Filter Accessories Radiator Foam

Radiator
Foam

Secured in front of the radiator, this black polyurethane/polyester reticulated foam is used on sand tracks to protect the radiator from dirt clogs. 10mm thickness, 30 pores per Inch (PPI).

Twin Air Filter Accessories Radiator Gauze

Radiator
Gauze

Teams use our clear polypropylene gauze on hard pack tracks to protect radiators from stone damage.

Twin Air Filter Accessories Skid Plate Foam

Skid Plate
Foam

This black polyurethane/polyester reticulated foam (40mm thickness, 30 PPI) blocks dirt from gaps between the engine and the skid plate and other adjacent areas.

Twin Air Filter Accessories Foot Peg Foam

Foot Peg
Foam

This 30 PPI black polyurethane/polyester reticulated foam is formulated to prevent dirt and mud from sticking on foot pegs.

Fender
Mud Deflectors

Prevent the added weight of mud that accumulates under your fenders with this slick, adhesive-backed foam – custom-fit to your bike.

Twin Air Filter Accessories Helmet Mud Shield

Helmet
Mud Deflector

Mounted on top of the helmet, this self-adhesive open reticulated foam (5mm thickness, 60 PPI) sheds dirt and mud like a duck sheds water.

Twin Air Filter Accessories Fuel Tank Foam

Fuel Tank
Foam

Used in large tanks of high performance vehicles, these impenetrable polyurethane/polyester cubes baffle fuel to control surging, eliminate sloshing and the slapping noise, and stabilize fuel movement during sharp turns. Performance is improved, and fuel capacity loss is less than 1%.