Well, when I left it it was up to 1024, and its shape was similar to what it was at 900 and at 1002 --- a very low-slung motorcycle with the hind wheel half the size of the front wheel and a mudguard/tail over the hind wheel, and the suspension of the front wheel pointing
upwards, so that it did not in fact function as suspension.
Now, about thirty generations later (and 1055) it's barely recognisable. The tail has gone, the rear wheel is three-quarters the size of the front wheel, the suspension of the front wheel points forwards, and nothing sticks out of the top, so that it can and does perform some of the journey upside down.
And I missed all the intermediate forms, dagnammit.