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Discussion Starter · #1 ·
Just as the title says.. I was wondering on the t120s fuel cap, can it be modified so that when its unlocked you could remove the key?
It's a pain as standard because it keeps hold of the key.
if you could remove the key once unlocked you would be able to twist it off without working around the key spinning round
Also would be able to sit it down on the seat wothout worrying about it rolling off
What do the rest of you think about this?
 

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What do the rest of you think about this?
Never gave it much thought. I don't spend that much time with the fuel cap off, and when I do, I am in a hurry to gas up, go park, head inside and take a whiz. Having the key held captive to me is a good thing. Besides, the seat is the LAST place I would want to set my gas cap.
 

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Discussion Starter · #3 ·
Yes on the seat with fuel is no good, but without the key upside down is fine, better than putting it fuel side down on something with the possibility of then getting dirt in the tank
 

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My recommendation is to be patient for another 6 months, and leave your gas cap stock. The aftermarket is chuck full of gas caps of all flaovors, finishes and artwork for the T100, Thrux and SE models, so it stands to reason it is only a manner of time before British Customs or Joker or someone else comes up with a replacement for the T120 and STwin. (Be careful when searching on the web for gas caps for the T120, though. Make sure it's for the Hinkley T120, and not the Meridian T120.) If the time ever comes to sell your T120, the stock cap is more attractive to the buyer and you can always sell the custom one for some extra coinage.
 

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There's a flat area on the top of nearly every gas pump. It's an ideal place for setting your gas cap. Just wipe the dust and dirt off your chosen spot with the heel of you hand. I can always tell gas pumps I've used before: that little spot is cleaner than the area surrounding it.

There's no chance of losing your gas cap. Even if you should forget, you'll notice when the cap's not in place every time.
 

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I just tried a stock (no lock) fuel cap from an '08 T100, it seems to fit a new T120 perfectly. I didn't take the bike for a ride, but it threads right in and the threaded area of the cap appears to match right up to the T120's locking cap. So, maybe this is your (OP) answer.

And BTW, the oil cap from the old aircooled engine bikes seem to be interchangeable with the new watercooled engine bikes.
 

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I just tried a stock (no lock) fuel cap from an '08 T100, it seems to fit a new T120 perfectly. I didn't take the bike for a ride, but it threads right in and the threaded area of the cap appears to match right up to the T120's locking cap. So, maybe this is your (OP) answer.

And BTW, the oil cap from the old aircooled engine bikes seem to be interchangeable with the new watercooled engine bikes.
Cool! Thanks for the tip.

Just another example of why these forums are so valuable.
 

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Further to my comments above, I rode my T120 today with the fuel cap from my '08 T100 on. The tank was filled as much as I could fill it. No fuel spilled or leaked past the cap, no fumes were expelled and the cap screwed down to the same height as the stock keyed T120 cap would have.

I think the most interesting thing from this, is that one should be able to conclude that any cap that fits an aircooled Bonneville would also fit at least the T120 and perhaps the ST too. Not sure what that says about the flip/lockable cap on the Thruxton. Anyone else?

BTW, FWIW, I am keeping the stock locked cap that came with my T120 on, I see no great advantage to putting the T100 stock cap on the bike.
 

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Discussion Starter · #10 ·
Good info
But I agree the t120 cap looks a lot better
All I want to do it to be able to lock and unlock it at my will
I'm thinking it may be worth taking it to a locksmith and asking if it's possible
 

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As that locking gas cap is now, after unlocking and removing the cap, you could lock it, remove the key, sit it upside down on your seat and then when you are ready to put it back on, insert the key, unlock it and reinstall it on the tank, lock it and remove the key so it can be placed in the ignition. This description took almost as long as a fill-up of your tank would take at the gas station. I guess I'm not appreciating what irritation it causes to leave the ignition key in the gas cap, fill the tank and then reinstall. I typically lay the cap on top of my gloves on the seat so that it can't roll off, if it is really windy, I put the cap and my gloves on the ground somewhere.

I think Triumph by design intentionally made the key "stick" in the lock when the cap was unlocked so that the owner wouldn't forget to relock the cap when it was reinstalled on the tank after a fill-up. There are always things that bother one person and go unnoticed by another. Good luck with all of this.
 

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Discussion Starter · #12 ·
There are always things that bother one person and go unnoticed by another. Good luck with all of this.
My last bike was a conventional fuel cap, turn the key and flip the cap up, fuel cap stays in place and fill away

What irritates me is the faf with untwisting the cap with the key and keyring combo in place

Makes a difference when you like to do everything without removing gloves!
 

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There's a flat area on the top of nearly every gas pump. It's an ideal place for setting your gas cap. Just wipe the dust and dirt off your chosen spot with the heel of you hand. I can always tell gas pumps I've used before: that little spot is cleaner than the area surrounding it.

There's no chance of losing your gas cap. Even if you should forget, you'll notice when the cap's not in place every time.
That's exactly what I do. Matter of fact I can remove the key from the cap just before I screw it back on the tank.
 

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Very often what seems like an unsurmountable problem to us is nothing to an specialist. I'm sure a key cutting shop or a locksmith could modify the lock tumbler so the key was removable in both positions in a few minutes.

Over here folk are fond of fitting "high security" locks in armoured doors in their apartments. If you lose a key you call out an emergency locksmith, he tells you to look away for a minute, before the minute has elapsed you hear a click and then you hand over anything from 40€ to 100€, (double that at weekends).
 

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Discussion Starter · #16 ·
Issue solved for me
I have been waiting for some circlip pliers to be delivered
I took the circlip out, lifted out the plastic screw part and lock tumbler
Using a screwdriver depressed the latch to remove the lock barrel and the locking notch springs out
On looking inside the barrel container there is a grove that allows the key splines to move into when pulling the key out in the locked position
In the unlocked position there was no grove
Solved by drilling a grove using a dremmel
The lock barrel container is metal, didn't take too long, and once all back together you don't see the part that's been drilled and it works a treat!
So now I can lock and unlock my fuel cap at will.
 

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Having lived with the new lockable gas cap for a week now I've decided that I like it, or at least don't mind it. Using it proficiently is kinda like knowing the secret handshake.

I noticed that the direction that you turn the key for unlocking is the same direction as you turn the cap for removal. Very logical, and once you know this, you'll never try to turn the key the wrong way again.

For the life of me though I can't figure out why Triumph made the cap so that the key can't be removed when the cap is unlocked. I can foresee days when you might gas up more than once without the bother of unlocking the cap each time. The philosophy should be that the cap is lockable, but locking should not be mandatory.
 

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For the life of me though I can't figure out why Triumph made the cap so that the key can't be removed when the cap is unlocked. I can foresee days when you might gas up more than once without the bother of unlocking the cap each time. The philosophy should be that the cap is lockable, but locking should not be mandatory.
Only guessing. :cool: You can't ride off with the cap still resting on top of the gas pump? :) (Lawyers would have a field day...)

People with cars/trucks with locking caps do it all the time. No, really...
 
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Maybe just fortunate, but I've never managed to leave my gas cap behind. I guess it's all in the habit patterns.
 

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Maybe just fortunate, but I've never managed to leave my gas cap behind. I guess it's all in the habit patterns.
Your day may come! :D Only have one vehicle with a removable locking gas cap. Went 20+ years without a problem. Must have gotten distracted in March while filling another gas can. Lost that cap. Cost me $60- to replace it with an OEM locking cap which is so-so and nothing like as nice as the 1995 OEM accessory version. DRAT!!! :(

My other two locking caps are integrated and the key won't come out unless they are locked. No way to screw THAT one up! ;)

The other car has a tethered cap and a spot where it stores in the fuel door/flap. Flap won't close with it there and no way to lose it.
 
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