I guess not only their geo is confusing.the machine geo has been published from the start; it's the stamina that's clouded in secrecy:
RIDER SIZE 160-170CM 170-180CM 180-190CM 190-CM
FRAME SIZE S M L XL
1. HEAD ANGLE SLACK
2. REACH PLENTY
3. TOP TUBE UPRIGHT PEDALING
4. BB HEIGHT NOT TOO LOW, NOT TOO HIGH
5. SEAT TUBE ANGLE STEEP
6. SEAT TUBE ANGLE (EFFECTIVE) VERY STEEP
7. STACK 640 650 660 670
8. WHEELBASE 1276 1306 1336 1361
9. CHAINSTAY LENGTH (EFFECTIVE) BALANCED
10. SEAT TUBE LENGTH VERY SHORT, BUT WE USE 34.9MM SEATPOST SO IT’S NOT A PROBLEM. THERE’S PLENTY OF LENGTHS
11. HEAD TUBE LENGTH 115 125 125 145
12. FORK OFFSET CHOOSE WHATEVER YOUR FASHION TELLS YOU
FRONT CENTER BALANCED