In my previous article
I wrote about
「using a titanium seatpost to avoid seizing on steel frames」,
but if you match the ionization tendency of the pipe materials
between the frame and seatpost with metals that are nearly identical,
you can largely avoid seizing issues
without resorting to titanium.
The Reynolds 853 tube used in Niner's
RLT9 Steel
according to the maker is「chromoly with Shimano's own proprietary blend of
manganese, silicon, and copper mixed in, so
please don't call it chromoly」, but
it's definitely based on chromoly (chromium-molybdenum steel).
When you use a chromoly-material seatpost with this,
seizing becomes extremely unlikely, but
for chromoly (steel-based material) seatposts
in 27.2mm diameter, as far as I know,
there's only Campagnolo's Daytona or
Shimano's Deore DX seatpost available.
↑This is that Deore DX's SP-M650.
It already had rust blooming on the surface,
so I'd occasionally wipe it with a cloth dampened with WD-40,
but since that was a hassle I painted it.
At that time I'd ordered a USE titanium seatpost
from the wholesaler,
and I used this one until that arrived.
Deore as a component group was originally for touring,
a grade that existed before MTB (ATB) came into the world.
Until XT came out, Deore XT was the flagship,
but Deore DX was the grade below that.
When XTR was the M950 series
Deore XT was M730-750 series,
Deore LX was M560-570 series, but
the M600 numbers were skipped
because Deore DX existed.
Then much later in 2008,
by making SLX the M660 series,
those vacant part numbers were reused,
but SLX wasn't
the successor grade to Deore DX.
Bonus
This is the original Deore crank.
The large hole for the pedal
is because it's exclusive to DD (Dyna Drive) pedals.
The DD pedal is Shimano's proprietary-standard
toeclip pedal, and
on the road version the pedal platform is
at nearly the same height as the pedal axle
（↑what Shimano wanted to achieve with DD pedals）,
but the Deore pedal doesn't work that way.
This is the DD pedal-exclusive pedal wrench.
Originally it was shaped to grip up to 7 sides
of the octagon,
but for better workability
part of it has been cut away and machined
into a shape like an ordinary spanner.
I wrote about
「using a titanium seatpost to avoid seizing on steel frames」,
but if you match the ionization tendency of the pipe materials
between the frame and seatpost with metals that are nearly identical,
you can largely avoid seizing issues
without resorting to titanium.
The Reynolds 853 tube used in Niner's
RLT9 Steel
according to the maker is「chromoly with Shimano's own proprietary blend of
manganese, silicon, and copper mixed in, so
please don't call it chromoly」, but
it's definitely based on chromoly (chromium-molybdenum steel).
When you use a chromoly-material seatpost with this,
seizing becomes extremely unlikely, but
for chromoly (steel-based material) seatposts
in 27.2mm diameter, as far as I know,
there's only Campagnolo's Daytona or
Shimano's Deore DX seatpost available.
↑This is that Deore DX's SP-M650.
It already had rust blooming on the surface,
so I'd occasionally wipe it with a cloth dampened with WD-40,
but since that was a hassle I painted it.
At that time I'd ordered a USE titanium seatpost
from the wholesaler,
and I used this one until that arrived.
Deore as a component group was originally for touring,
a grade that existed before MTB (ATB) came into the world.
Until XT came out, Deore XT was the flagship,
but Deore DX was the grade below that.
When XTR was the M950 series
Deore XT was M730-750 series,
Deore LX was M560-570 series, but
the M600 numbers were skipped
because Deore DX existed.
Then much later in 2008,
by making SLX the M660 series,
those vacant part numbers were reused,
but SLX wasn't
the successor grade to Deore DX.
Bonus
This is the original Deore crank.
The large hole for the pedal
is because it's exclusive to DD (Dyna Drive) pedals.
The DD pedal is Shimano's proprietary-standard
toeclip pedal, and
on the road version the pedal platform is
at nearly the same height as the pedal axle
（↑what Shimano wanted to achieve with DD pedals）,
but the Deore pedal doesn't work that way.
This is the DD pedal-exclusive pedal wrench.
Originally it was shaped to grip up to 7 sides
of the octagon,
but for better workability
part of it has been cut away and machined
into a shape like an ordinary spanner.