The KYT NFJ is an open-face helmet whose visor (shield) is held by a mounting on each side of the shell. Changing it is a short job that needs no tools once you know the order. This guide covers KYT NFJ visor removal and refitting, how to check you really have an NFJ before ordering a part, and what to look at before your next ride.
Aftermarket visors for KYT helmets
The short answer: put the helmet on a soft surface with the front opening facing away from you and raise the visor to the very top of its travel. Release the side mechanism on one side, ease that side of the visor away, then do the same on the other side. Fit the new visor in the fully open position, one side at a time, and press until each side clicks.
Before you start: confirm the helmet is an NFJ
KYT has sold several open-face and jet helmets with short, similar names, and a few of our listings carry both the NFJ and TTR-JET names. Do not assume a visor fits because the name looks close. A visor is cut for one shell opening and one pair of side mountings, so the model name matters more than the look of the helmet.
- Read the label. Check the label sewn to the chin strap or inside the shell. The model name is printed there.
- Note the size range too. It does not change the visor on most helmets, but it helps if you ever need to contact a dealer about a part.
- Check the old visor for pins. Two small pins on the inside face, near each side, mean the visor is ready for an anti-fog insert.
If the label is missing or worn, our visor finder walks you through identifying the model. Our overview of visors that fit KYT helmets sets out how the other shells in the range are grouped.
What you need for the job
The swap itself is done by hand. Preparation is mostly about protecting the paint, the side mountings and the new visor’s surface.
- A folded towel or the helmet bag to rest the helmet on
- Two clean microfibre cloths, one dry and one slightly damp
- The replacement visor, with its protective film still on
- The owner’s manual that came with the helmet, which shows the release point on your exact model
- Good light from the side, so you can see the mechanism clearly
Wash your hands before you start. Skin oil on the inside of a new visor is the most common reason it smears the first time it fogs.
KYT NFJ visor removal, step by step
This is the general sequence for a tool-less side mechanism of the kind the NFJ uses. Where the diagram in your manual differs from these steps, the diagram wins, because it is drawn for your helmet.
- Set the helmet down. Rest it on the towel with the front opening facing away from you.
- Raise the visor fully. Lift it through every detent until it stops. Most side mechanisms will only release in this position.
- Find the release. Look at the side mounting just behind the visor’s pivot for the lever or tab that frees it.
- Operate the release and hold it. Keep it held while you draw that side of the visor gently away from the shell.
- Repeat on the second side. Free the other side in the same way and lift the visor clear of the helmet.
Lay the old visor down on its outer face so the inner surface stays clean. If one side will not let go, stop. Check that the visor is still at the very top of its travel and that the release is still held, then try again.
Never prise the visor off with a screwdriver, a coin or a knife. The tip slips, and it marks the shell, the mounting or the visor itself. Our general guide to removing a motorcycle helmet visor shows how other common mechanisms release if you own more than one make.
Cleaning the side mountings while the visor is off
With the visor removed, you can reach parts of the helmet that are normally hidden. This is the best moment to clean them, and it takes a couple of minutes.
Wipe each side mounting with the dry cloth and look for grit packed into the recesses. Road dirt that collects here is the usual reason a visor feels stiff, creaks as it moves or refuses to seat squarely. Use a soft brush for anything the cloth cannot reach.
Wipe the rim of the helmet where the visor sits as well, and let everything dry fully before you fit the replacement. A clean, dry surface helps the new visor sit square and stay quiet at speed.
Fitting the new visor
Fitting is the removal in reverse, done slowly and squarely. Work on one side at a time and do not force anything.
- Peel back the film at the edges only. Keep the centre covered so you cannot fingerprint it while you handle the visor.
- Hold the visor in the fully open position. Offer it up at the angle the old one came off.
- Line up the first side. Sit the visor’s pivot opening square over the mounting, not tilted.
- Press it home. Push in the centre of the mounting until that side clicks into place.
- Fit the second side. Keep the first side seated while you line up and press in the other.
- Work the visor through its range. Close it and open it several times, listening for an even click on both sides.
A correctly fitted visor sits level and closes evenly along its whole length. If one corner stands proud, or one side moves before the other, that side is not fully home. Take it off and seat it again rather than pushing the visor shut harder.
Finally, peel off the rest of the film from both faces and wipe the outer face with the damp cloth. The Highway Code is direct about why this matters: “Before each journey check that your helmet visor is clean and in good condition.”
Anti-fog options for an NFJ visor
An open-face helmet leaves the lower half of your face uncovered, so fogging is a smaller problem than on a full-face lid. It still happens in cold, wet weather and when you stop at lights with your breath rising behind the visor.
A pin-style anti-fog insert is a thin second lens that sits between two pins on the inside of a visor. We do not list an insert for the NFJ, and an insert only fits a visor that has the two pins, so do not order one for a visor without them. Our guide to fitting a pin-style anti-fog insert shows the method, and the range of Pinlock-compatible anti-fog inserts shows what we carry.
Choosing a replacement visor for the KYT NFJ
The removal is the same whatever you choose, so the decision is about where and when you ride. The table below summarises the visor types in our KYT NFJ visor range.
| Visor type | Suited to | Road use in Great Britain |
|---|---|---|
| Clear | All-round riding, dusk, night and rain | Depends on the marking on that individual visor |
| Photochromic | Riding in and out of sun and shade | Depends on the marking on that individual visor |
| Dark tint (smoked) | Bright sun away from public roads | Dark smoke tints are not permitted |
| Mirrored or iridium finishes | Off-road and private-land use | Not permitted at any time of day |
For most riders a clear visor is the sensible first purchase, because it works in every light. Our page on clear replacement visors explains what to look for. The replacement visor listed for the NFJ comes in clear as well as several tints.
If you ride from bright mornings into shaded lanes, a photochromic visor darkens in sunlight and clears again in shade, and the KYT NFJ / TTR-JET Photochromic Visor is listed for this helmet. For bright days off the public road, iridium visors cut glare.
When to replace the visor
Deep scratches are the obvious reason to change a visor, but they are not the only one. A visor that has hazed, cracked near the pivots or lost its coating scatters light from oncoming headlights, and that is worst at night and in rain.
A simple test is to look through the visor towards a bright light in a dim room. Starbursts, halos or a milky glow mean it is time for a new one. Our guide on when to replace a motorcycle visor goes through the signs in more detail.
The law in Great Britain: the marking on the visor is the test
In Great Britain the legal test for a visor is the marking on that individual visor, not its colour or the name of its tint. The Motor Cycles (Eye Protectors) Regulations 1999 prescribe BS 4110 and require a protector to be marked with an approved certification mark of an approved body. A visor is only road legal in GB if it carries that marking.
Iridium, mirrored and dark smoke visors transmit too little light to be legal for road use in Great Britain, day or night. They are sold for off-road and private-land riding.
Selling eye protection for road use when it is not of a prescribed type is itself an offence under section 18 of the Road Traffic Act 1988. That is why ClearLine never describes any visor as approved or certified: we do not check the marking on individual items. Read our guide to tinted visor law in Great Britain for the detail, and riders in the US can start with our guide to visor tint rules in the US.
Troubleshooting after a visor swap
Nearly every problem after fitting a new visor comes from a side that is not fully seated or from dirt in a mounting. Work through these before deciding a part is faulty.
Why will my KYT NFJ visor not come off?
The visor is usually not at the very top of its travel, or the release was let go before that side came away. Raise the visor fully, hold the release and keep holding it while you draw the visor off. Never lever it with a tool.
Why does the new visor whistle or sit crooked?
One side is probably not fully home, so the visor cannot sit level. Take it off, clean both mountings and seat each side again until it clicks.
Why does the visor feel stiff or creak as it moves?
Grit in a side mounting is the usual cause. Remove the visor, clean the mountings with a dry cloth and a soft brush, and refit it. Avoid oils and sprays on the mechanism, because they collect more dirt.
Does an anti-fog insert change whether a visor is road legal?
No. The insert sits on the inside and works the same way whatever the outer tint is. In Great Britain the legal status still depends on the marking the visor carries.
Looking after the visor and mechanism
Visor coatings are thin, and the wrong cleaner removes them quickly. These habits keep a new visor clear for longer:
- Soak before you wipe. Lay a wet cloth over a dirty visor for a few minutes so insects and grit lift off instead of scratching.
- Use mild soap and microfibre only. Paper towels and glove fingers are abrasive enough to dull the surface.
- Keep solvents away. Petrol, glass cleaner and household sprays attack polycarbonate and its coatings.
- Clean the side mountings every few months. Wet rides pack dirt into them faster than dry ones.
- Store the helmet in its bag. It protects the visor from knocks and scratches between rides.
Our full guide to cleaning a motorcycle helmet visor covers technique in more depth. For the other models in the range, browse our visors for KYT helmets. This guide was written by the ClearLine team.
Visors and inserts mentioned in this guide
- KYT NFJ Replacement Visor — Iridium, Smoke, Clear Tints
- Photochromic visor for the KYT NFJ
- Every visor listed for the KYT NFJ
Frequently asked questions
Do you need tools to change a KYT NFJ visor?
No. The visor releases by hand from the side mechanism once it is raised fully. A tool only adds the risk of scratching the shell or the visor.
Is an NFJ visor the same part as a TTR-JET visor?
Do not assume so. Some of our listings carry both names, but order the visor listed for the exact model on your helmet’s label, or use the visor finder if you are unsure.
How often should I clean the visor mechanism?
Every few months for most riders, and sooner after a run of wet rides. It is quickest to do whenever the visor is off for cleaning or replacement.