The Nexave 400 seriesfront derailleur is made to work with a triple cranksetand is designed to work with a large
chainring of 46 or 48 teeth for optimal shifting, the middle chain ring needs to be at least
10 teeth smaller then the large ring , and the small ring should not be smaller
then 20 teeth of the large rings size , here are couple examples of combos are
a match , 48-38-28 or 46-36-26etc.
Nexave is Shimano’s dedicated Hybrid/ Cross / Trekking/ UrbanParts kit , there where four different quality levels of parts available
that used the Nexave label ,The derailleur’s where available in the USA from
the mid 1990s to 2006 (Shimano still produces them for other world markets).
This derailleur is compatible shimanomtn shifters , Sram trigger or grip shifters
and shimano bar-con levers , they will not shift properly if you try to use
them with Shimano road STI shift levers .
Here are the four Nexave levels of quality and their
equivalent levels of quality in Shimanos mountain line up , higher quality
derailleurs generally are made of harder alloys and have a longer wear life .
Nexave 600 series = Deore XT
Nexave400 series =
Nexave 300 series = Alivo
Nexave 200 series = Altus
The 600 series was designed for 9 speed systems or bicycles
with 27 gears
The 400,300,200 series was designed for 7-8 speed systems or
bicycles with 21or 24 gears
This FD-T401 (400 series) derailleur has a clamp size of
34.9 mm or 1-3/8 in , you can clamp this to the other two smaller sizes of
31.8mm and 28.6mm if you have derailleur clamp shims , they are not included
with this derailleur but are available at most bicycle stores . the
derailleuris top pull , this means that
the cable is pulled from the top of the bicycle .
These are great
choice for fixing or putting together hybrid or touring bicycles , also many
older mtn bikes used larger chainring combos especially previous to1993 and these derailleurs will work with
older five and six speed drivetrains .
find out if this clamp size fits your bike you will need to either look at the
front derailleur that came on the frame , most are stamped with a
size on the inside of the clamp of the derailleur OR measure the outside
diameter of the seat tube where the derailleur clamps to the frame.