sealed bearings not easy to remove

4.1: news.gear/trike/sealed bearings not easy to remove:

. bearings actually quite easy to install if you do it yourself.
Just make sure you use a socket that just fits inside the hub
to seat the new bearing.
Pushing on any part of the bearing but the outside race
will distort the bearing and cause it to have
a very short lifespan.
Look carefully for the bearing # on the race.
Likely it is a 6001RS 12x28x8. 10 about $15.
Email ICE and they'll send you a video
on how to replace them.
I used the old bearings once removed
and the axle bolts to
force the new bearings to seat in the hubs.
Alternatively is to have them changed at a dealer.
I chose to change the 4 bearings for the front wheels
with ceramic hybrid bearings
of the 6001 series. [$35, $15 /each]
ICE ceramic bearings cost about $15 each.
...
Driving the old bearings out is pretty simple
from the "outside" of the hub.

...
. used the Ice method for driving out the old bearings;

After half an hour of trying and making no progress
I took the wheel to my LBS;
They said how hard it was get the bearings out
- they had to make a tool specially to get behind the casing.

preventing frame damage in tadpole trikes

12.13: gear/trike`frame/potholes need suspension:
. the trice front-suspension add-on is expensive,
but it's quite likely the frame will be ruined
unless speeds are low or potholes are avoided .

gear/trike`frame/potholes need rider pivot:
12.13:
. the trice already has rear suspension
which helps deflect rider weight from bending frame;
but that doesn't help z-axis rolling
where one front wheel is potholed but the other isn't
and the whole frame falls into a rolling motion
to one side or another .
. if the rider's chair is frozen to the frame
then the rider's weight is resisting that z-roll,
which could increase stress at the cruciform joint .
12.14:
. how rigidly can riders' weight
prevent rolling about z-axis for potholes?
# if rider's seat were not bolted to main tube,
but instead pivoted sideways,
then there'd be less stress on frame during potholes;
# if seat was closer to main tube,
with thick cusion under rider;
then z-axis rotation could happen stress-free
even without pivot .

12.15: gear/trike/replacing front suspension:
. the cheap sure-tech way to stop
frame bends from potholes
is to unbolt the seat from the z-tube,
make a platform that is anchored to
both the z- & x-tube;
and, bolt the seat to that platform .
. if steering doesn't fit with platform,
it can be moved from sides to center .