We have been asked (a lot) exactly how big the G Line is compared to a traditional (or C / P Line Brompton)
So we made this video and measured a lot of dimensions!
If we missed anything - let us know and we'll find the size:
There were a LOT of outtakes - measuring and remembering which measurement was being measured was a lot more difficult than it may seem!
The measured (and some extra sizes are below):
Same across all sizes:
Wheelbase
G Line: 110cm (43.3 in)
C Line: 105cm (41.3 in)
Overall Length
G Line: 162cm (63.7in)
C: Line: 147.5cm (58 in)
Bottom Bracket Height
G Line: 28cm (11 in)
C Line: 28cm (11 in)
Varies by size
Stack and reach -
Reach
G Large 50.2 cm
G Medium 68.7cm
G Small 67.6cm
C Low: 42.5 cm (17.5 in)
C Mid: 45 cm (18 in)
C High: 42cm (17 in)
Stack
G Large: 69.6cm
G Medium: 68.7cm
G Small: 67.6cm
C Low: 59cm (23 in)
C Mid: 57cm (22 in) +12cm handlebar rise
C High: 85cm (26 in) + 12cm handlebar rise
Floor to saddle (extended seat post)
C Line: 104cm (41 in)
G Line: 110cm (43 in) So add 6cm / 2 inches for G compared to C Line (like going from standard to extended seat post)
0:00 | Intro
1:03 | Wheelbase
1:41 | Overall length
2:21 | Bottom bracket height
2:49 | Reach and stack calculation
3:29 | Reach
4:51 | Stack
5:29 | End
7:23 | Outtakes