Hi Nigel, I know a bit this bicycle: I think it is one of the best pedelec available in Europe and a very good replacement for the Lafree Twist. It is quite a similar technology as flecc says, but may be slightly better that the Twist both as a bicycle and in the assistance.
There are three generations of “Flyer” with Panasonic motor: the first one (for instance the C5) is discontinued and was very similar to the Twist. The second one has an improved motor (called “Plus”), and the third one (“Premium”) is the last generation, with a bit stronger uphill assistance. The Plus motor uses a 7.2ah Lithium battery and Premium one has now a 10ah Lithium battery.
There are now three series. The versions inside the same series differ usually for brakes and gears. Series are:
C (= Comfort), with a 26” wheel as the old Twist, available both with the “Plus” (C3 and C6) and the “Premium” motor (C8) and two frames (LDS and Cruiser).
T (= Trekking), with a 28” wheel and the “Premium” motor (in two frames and three versions).
And recently the S (= Sport), a MTB style 26 wheel with the “Premium” motor and “high speed” capability, since it is possible to have it with the assistance working till 35 km/h (in three versions).
There is also a very good little folding bike with the Plus motor (Faltrad) and a Tandem.
They are very expensive bicycles, starting in my country from more than 2000 euros for the entry level C3 plus (which I think would be the perfect substitute for a Lafree) and ending at more than 3500 euros for the best S version. Their Lithium batteries are very expensive as well and their particular engineering excludes recelling, as far as I can understand.
Here you can download the catalogue in German and we speak quite a lot of those bicycles in our
Italian pedelec forum.
Flyer produces also an older "F" series, with different motor and overall characteristics.