11
Reach:
horizontal distance from BB center to HT center
Stack:
vertical distance from BB center to HT center
ST:
seat tube lenght (BB center to ST top)
TT:
top tube length (actual)
ETT:
top tube lenght (effective)
CS:
chain stay length
HT:
head tube length
HT angle:
head tube angle
EST angle:
seat tube angle (effective)
BB drop:
bottom bracket height (BB center to WB)
WB:
wheel base
THUNDERBIRD
FR PRO
THUNDERBIRD
FR EVO
Size
Medium
Large
Reach
445
470
Stack
619
619
Seat tube
430
450
Eff top tube
540
565
Chainstay
430
430
Head tube
110
110
HT angle
65
65
ST angle
81
81
BB drop
12
12
Wheel base
1206
1231
Standover
795
795
Size
Medium
Large
Reach
445
470
Stack
619
619
Seat tube
430
450
Eff top tube
540
565
Chainstay
430
430
Head tube
110
110
HT angle
65
65
ST angle
81
81
BB drop
12
12
Wheel base
1206
1231
Standover
795
795