Efneo is a planetary gearbox that promises quicker and easier shifting than a conventional front derailleur.
There is a slight weight penalty of 400g, but in its favour efneo does away with the need for tiresome, tricky adjustments.
A conventional front derailleur has three chainrings of different sizes rotating at the same speed.
The efneo has one chainring, rotating with different speeds on three different gears. The design allows you to change down to first gear at a standstill and then pull away easily without any chain-dropping. Visit the efneo website.
How does a planetary gear work?
Epicyclic gearing or planetary gearing consists of one or more outer gears, or planet gears, revolving about a central, or sun gear. Best demonstrated by the simple wooden model below.
Mark Iliff
Sweet Sturmey, gentle Archer, thou shouldst be living at this hour
Hasan Kamis
Hallo Zusammen,
(3-gear front gearbox)
Wo kann ich in Deutschland kaufen?
Die von ihnen erfundene Produkt ist mir im Internet begegnet. nur Ich komme aus Deutschland, hier finden wir diesem Produkt nicht.
Können sie mir einen onlineshop im Internet empfehlen oder eine laden in Deutschland?
Mit frueuntlichen Grüssen
Kamis