More practical but still fun!
Do you want a winter bike, something to take to work? Perhaps you
actually are a courier and want something to ride all day.
Here is my plan:
I'll lengthen the wheel base so you don't beat yourself up with every
pothole in the road. This will also gain you some tire clearance.
If you like I can even design it for long reach brakes and fenders.
Angles and fork dimensions are like a typical road bike for nice normal
predictable handling.
Frame Size	Head Angle	Seat Angle	Rake	Trail	Chainstay Length
(cm)	(deg)	(deg)	(cm)	(cm)	(cm)
		---smaller sizes available--
48	72.5	75	45	58	41
50	72.5	75	45	58	41
52	73	75	45	59	41
54	74	74.5	40	56	41
56	74	73.5	40	56	41
58	74	73	40	56	41
60	74	73	40	56	41
62	74	73	40	56	41
		---larger sizes available---
Notes:
Sizing and geometry are fully custom, these are suggestions only.
Sizes smaller than 54 will have toe clip overlap