Managed to get that job done this evening with my "keyless" key and Givi Trekker 58L lock.
This is what I did if anyone else wants to give it a go.
Remove the lock from the box and dismantle.
Be careful of the small springs under the stainless cover as Roamer said. They fly a long way for their size...
Pull out all the wafers and their small springs. A light tug with a plyers does the job. Watch the springs..
When it is all dismantled, the BMW key will not fit the Givi barrel.
After I filed the entrance hole, I had to file all the guides inside the full length of the barrel.
Doesn't take long but you have to be careful not to take too much meat and leaving the key loose.
I used a Dremel with a small diamond bit and a bright light gradually working the key down along the guides inside of the barrel.
The BMW key will eventually fit in the Givi barrel nearly to its stops.
Try wafers in the slots trying the key so all the wafers are flush with the barrel outer with the key in place. This is trial and error.
You then have to put in the small springs and the key to make sure all the wafers are still flush with the outside of the barrel.
Spring tension makes the wafers end up in a different position than without tension so they can end up not flush with the barrel.
I think this is because the Givi key slot is slightly narrower that the BMW slot giving more play on the wafers with the BMW key.
You can try it in the metal cylinder to make sure it locks and unlocks smoothly.
I managed to get all but one wafer back in. Some will be way out of size. (probably just luck) I dumped the stainless steel guide in the first slot.
I did cheat a bit by using some emery on the wafers that protruded a little to get a smooth action..
From reading previous posts, I understand that you don't have to get all the wafers back in. The more the merrier..
Cleaned the finished job with carb cleaner and reassembled. Watch the ball bearing and spring in the lock body.
Lining up the oval hole in the plate lock i a bit tricky.
A good shot of ACF50 and all was good.
As said before, not hard to do just a bit tedious but still one key in the pocket.
Have photos if anyone wants them.
Are you available for nixers ??


