I was called out to make a new replacement motorcycle key for this Triumph Speed Triple.
There are a few safe and proper locksmith methods to make a new key for a motorcycle. One of them is to simply have the key code for motorcycle and cut a blank key to with a key code machine to match that code and have it work the motorcycle. Another method is to pick the gas cap lock and remove it, take the lock completely apart, decode the wafer tumblers in the lock and make a key to that lock, and then use a progression chart to fabricate the missing keys in the series that will work the ignition and the seat lock for the motorcycle. Another method, although less practical in today’s modern times, is to use a key blank and hand fit it to the motorcycle via a method called “impressioning,” where one puts a key blank in the lock, moves it around in the lock, and looks for little marks made by the individual wafer tumblers of the lock. This method goes back a hundred years or more but it’s sometimes not as effective to use in modern motorcycle locks because the wafer tumblers are small and designed to bend if someone tries to put a key blank in and putthe turning pressure on it needed to impression. A much better key fitting, or key making method is to “read” the lock, using eyesight or a scope to look at the wafer tumblers in a lock and make an estimate of what the wafer measurements are. This was the method I ended up using to make the key.