I’ve been using one on my H6R since 2019 and it gives a better riding position IMO.
I’d read that for an H stem if I kept the bars full width (ie: no trimming) I didn’t need to trim the cables. Well on a test ride after fitting I felt 600 was too wide so I trimmed them to 560mm and didn’t need to trim the cables. Maybe you won’t need to trim the cables if you get the M cables and keep the 600 width.
Consider a Joseph Kuosac 100mm mid riser (600mm wide) instead of Brompton one. SJS are UK stockist: https://www.sjscycles.co.uk/handlebars/joseph-kuosac-handlebar-for-bromptons-mid-rise-254mm-clamp-silver/
I’ve been using one on my H6R since 2019 and it gives a better riding position IMO.
I’d read that for an H stem if I kept the bars full width (ie: no trimming) I didn’t need to trim the cables. Well on a test ride after fitting I felt 600 was too wide so I trimmed them to 560mm and didn’t need to trim the cables. Maybe you won’t need to trim the cables if you get the M cables and keep the 600 width.