B
B. Sanders
Guest
My 2003 Van Dessel SuperFly "all 'rounder"/city bike is equipped with the Shimano Nexus Inter 7
planetary gear hub and roller brake.
I don't have the necessary instrumentation to offer any quantified evidence; but in certain gears,
it feels like the hub is eating a lot of pedalling energy. It is quite noticeable.
This doesn't really surprise me. I know there are dozens of gears spinning around in an oil bath
inside the Nexus hub, and that's going to be less efficient than 2 sprockets* and a chain.
I've read that the SRAM/Sachs 7 speed internal hub is a better design. Any comments?
-Barry
* Why do I feel the need to dance to German techno music wearing a black bodysuit when I say the
word "Sprockets"?
planetary gear hub and roller brake.
I don't have the necessary instrumentation to offer any quantified evidence; but in certain gears,
it feels like the hub is eating a lot of pedalling energy. It is quite noticeable.
This doesn't really surprise me. I know there are dozens of gears spinning around in an oil bath
inside the Nexus hub, and that's going to be less efficient than 2 sprockets* and a chain.
I've read that the SRAM/Sachs 7 speed internal hub is a better design. Any comments?
-Barry
* Why do I feel the need to dance to German techno music wearing a black bodysuit when I say the
word "Sprockets"?