Anyone who really knows...I'm seriously considering a 6 speed Brompton and I'm wondering about the part sprocket and part IH combination. Is there a reason that they don't simply put an all internal hub on the bike? It seems too easy to me so there must be some sort of valid explanation. Thank you.
Because the 6+ speed IGHs are…
- wider → less compact fold
- heavier than the derailleur + IGH solution Brompton came up with
- more expensive.
The left-right shuffle between the two levers is a bit annoying, but until a company comes up with a 6+ IGH that solves the issues above…
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