J
John Riley
Guest
On page 16 of the hard copy edition of Mar 15 BRAIN there is an item about a new Shimano patent
(#6,497,314). If I understand it right, when you release the QR and pull the skewer part way out,
the hub body seperates from the cassette. When you remove the hub in this manner, the cassette stays
attached to the right dropout. There is a splined piece that connects the hub and cassette when
everthing is locked down.
They say it allows easier gear changes. I would think it would also allow easier spoke replacement
as well. I can't tell where the freewheel mechanism is; whether it is in the hub body or in the
cassette body.
These kind of hubs have come and gone several times over the years, but never caught on. I suppose
they are more expensive. Seems like a good idea to me. I once had a Maillard Helicomatic hub that
allowed easy removal of the cogset.
They also have a new patent on a freewheel that allows the use of cogs down to 11 teeth.
John Riley
(#6,497,314). If I understand it right, when you release the QR and pull the skewer part way out,
the hub body seperates from the cassette. When you remove the hub in this manner, the cassette stays
attached to the right dropout. There is a splined piece that connects the hub and cassette when
everthing is locked down.
They say it allows easier gear changes. I would think it would also allow easier spoke replacement
as well. I can't tell where the freewheel mechanism is; whether it is in the hub body or in the
cassette body.
These kind of hubs have come and gone several times over the years, but never caught on. I suppose
they are more expensive. Seems like a good idea to me. I once had a Maillard Helicomatic hub that
allowed easy removal of the cogset.
They also have a new patent on a freewheel that allows the use of cogs down to 11 teeth.
John Riley