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My VERY Heavily Modified Sunrise Medical F55s (F55)
Powerchair build - MK2
A Powerchair that is as good INDOORS as it
is OUTDOORS! There are NO other contenders
MORE DETAIL / HOW and WHY Pages
for MK2 version here 1
| 2 |
Mk3 versions +
Less than 40
inches. Including a deep central footplate and rearmost anti
Shorter than almost all other powerchairs. Manufacturers quote
mid drive/6 wheel powerchairs with casters in the "shortest" rotated position
and ignore footplates.
Much Shorter (& narrower) than an X5 or
or R4000 for e.g. And more
manoeuvrable with lower seat height too!
WIDTH: 25.25 inches.
Measured with an 18 inch wide cushion in place. That's narrower than
almost all other "hi end" powerchairs. And the manufacturers quote minimum
figures ignoring any controls sticking out and with a narrow seat cushion in
place. I don't!
HEIGHT: 17 inches
(can be as low as 16.5 upwards) All current F55s seat riser, tilt,
recline, elevating leg rests, etc and specialist seating can be accommodated as
needed. It would make it worse as a powerchair and I don't need it. The main frame is still F55s Sunrise so all options for the F55s
powerchair can be fitted. Its about the only stock part.
SPEED, MOTORS & CONTROL:
6.2 mph with EMD 4 Pole motors + 100 Amp P & G
Control System. Or soon to be 8.5 mph with "Groove" 4 pole motors and a
Dynamic DX2 Control
System (240 true total amps) In both cases completely
reprogrammed for true & accurate response rather than the delayed action offerings
from all the big main manufacturers.
30 Amp 1 hour
fast charge +
Dual 10 Amp charger for superior overnight 5 to 6 hours
charging + Up to 100 Amp
direct from your car for a VERY
FAST charge while out during the day as needed.
Odyssey AGM Deep Cycle Group 34 (preferred) or 73Ah MK Group 24 Gel.
Odyssey AGM batteries can produce more Amps when the going gets tough and be charged faster and give greater
performance as well as better range in "powerful" powerchairs than MK Gels. MK give
greater "Cycle" life by around 20 percent on paper. Any
group 34, or 24 will fit but no
others I know of are worth even considering.
WHEELS & TYRES:
145/70 - 6 All Terrain 4 Ply, Tubeless, low pressure high floatation tyres
on single piece steel wheels on the rear. These are good on snow, mud, sand, and
offer superb vibration and bump absorption. 3.00 - 4
(9.5 inch x 3) tyres on 4 x 3 two bit rims on front casters. These
carry little weight and don't sink in soft surfaces due to width and roll over
uneven surfaces because of diameter. Tubeless tyres offer approx 20x
better puncture deflation risk. And they have sealant inside too.
But lots lighter than Donor F55 powerchair.
GROUND CLEARANCE: 4
Inches. Better than most powerchairs.
It happily carries a 25 stone adult. Heavier would be a bit much for
the batteries. Range and performance would suffer. Structural integrity not an
PARTS (Yes every single last unseen part!) is either heavily POWDER COATED in an oven or
made from polished Stainless Steel. This includes every single nut, bolt,
washer, bracket and spacer. All assembled parts are basically not going to
corrode even in sea water or on our salty dirty winter roads.
It should wash completely
clean year after year with no or very little deterioration. All bearings are
also stainless steel. No more failed rusty bearings on casters... Upholstery, motors, batteries will need
periodic replacement as
they deteriorate. But this is unavoidable. So unlike mass market chairs it will
still look just as good after the winter with a jet-wash and polish!
Want to fetch your powerchair from the shower room to the bed?
Want to load a spare powerchair into your van? No problem! Or just for fun
or to scare the dog! I drive my powerchairs remotely all the time.
ALL powerchairs should be equipped with radio control. Its very, very useful!
when you have 3 of them. We all need a backup
powerchair after all.
Please ignore the device on the seat. That is my
special home built Radio Control Adapter that
allows me to move these different powerchairs around to work on / photograph them etc.
Narrow enough for houses, vans, very capable on sand, mud, snow, grass as well
as SMOOTH ride outdoors on footpaths etc.
should be off road capable
MORE PICTURES FROM ALL OTHER ANGLES:
Full Sized Image F55S
This one is a year old. I have 3. Having already been through a winters salt. New tyres
and a good strip/ very thorough clean and pressure wash (take care not to hit
the power module! or joystick) and all as good as new. Motors dont mind the odd
pressure wash... Due to all the stainless steel bolts, bearings etc and every
single part powder coated against corrosion. It STAYS looking new unlike cheaply
finished commercially built powerchairs
Full sized image
Sunrise Medical F55s seriously redesigned! Almost every single
part of this chair is redesigned or fabricated from scratch or modified/replaced
with better parts. With the exception of the main frame rail.
Those bags on the back are where I keep my guns. (Joke)
in full size image
Its seriously short. sub 40 inches including long footplate. And very manoeuvrable indoors. It is in fact shorter and
narrower than any other top end powerchair. Whilst still being truly outdoor
capable with all day range. When you reverse to a wall the first thing to
touch is your head. Not a great chunk of wheelchair that hangs out behind you.
And the Main drive wheels are almost under you. Much like a mid drive
Footplate and seat height is easily adjustable as is seating angle. And it can
be as low as 16 inches. Here it is 17.5 inches since its tilted back quite
steeply. Power module bolted under seat where there is fresh cooling air hitting
it as you drive.
Ground clearance is 4 inches. Snow, sandy beaches, mud etc is all easy!
Notice the two heavy
duty charge sockets (12v + 12v) on the side of the seat frame. This
allows charging typically in
1 hour during the day as needed both at home or from
Anti tip wheels are inboard and short as well as 4 inches high. They do not hit
anything and serve only to stop you accidentally wheelying over the back only. All
bearings, bolts etc are stainless steel. One single bolt undoes the
battery compartment door. Batteries just slide straight out on rails.
Looks at home in my kitchen.
Modified fat tyred F55s is narrow and short as well as powerful and
Seriously modified and slightly modified comparison! Large image!
Here is the very heavily modified FAT TYRE version compared to the lightly
modified version on the right. (An older version!) I don't have an original standard/stock Sunrise
Medical Quickie F55s Powerchair anywhere to compare either of these two with.
But there are huge differences between either of these and a stock F55 Quickie
Both of these are hugely better performing, both indoors and outdoors than any
other top end powerchair including the standard (awful) F55 powerchairs these
were based on.
Both allow very fast charging from the wall or a
vehicle, Both have lots of power and accurate instant control response. Both can
wheelie, Both can fit into small indoor areas better than any other powerchairs
including mid drive / 6 wheel ones. Both have stronger less puncture prone
4 ply road going tubeless tyres. Both have a very rearward C of G meaning they are nimble and
very manoeuvrable. Both are the same narrow 25.25 inches wide with no "corners".
Both have 100 amp control systems, programmed for accurate control. (Soon to be
swapped for 240 amp systems!) Both have AGM Odyssey batteries for better
performance under heavy load.
The one on the right is longer at 42 inches compared to a little under 40 inches
for the one on the left. The one on the left is hugely better outdoors and in
snow/sand/mud and offers a better ride everywhere. With no downsides.
tilting seats but could also have seat risers/ recline / leg elevators etc as required very easily.
finished hugely better than any production powerchair. All parts that may
corrode such as bolts, nuts, bearings, spacers etc are replaced with stainless
steel. All painted parts are heavily powder coated. That includes every single
bracket and hidden part too. Built to survive our winters!
Detailed PowerChair Only Menu |
Or MORE DETAIL / HOW TO
build pages 1
| 2 |
THERE ARE NO OTHER CONTENDERS. ANYWHERE!
I have scoured the web, the industry, the advertising
on both sides of the
Atlantic for 12 years. And there simply isn't another
powerchair that comes even close.
I have tested and examined everything available or
at very least looked at the specs of the ones I cant test. All are pretty much the same.
The Frontier X5:
Detail As good
(if not even better) off road. But pretty useless indoors with it being
too wide (28.5 inches!) too long, too high (seat) so it feels like a tank. And has the usual
delayed action programming issues but not as bad as most. It also has build quality issues (mainly
seat/footrest/arms) and is limited by Gel batteries (power) if the programming
is sorted out.
Quantum R4000 & R4400. Detail Outdoors on streets it
rattles your teeth out (skinny hard 3.00 x 8 tyres) is less capable on sand,
grass, snow etc. Is both considerably longer and slightly wider my own chair
here so its
less good indoors. And has less
ground clearance. Especially cumbersome when you realise how front heavy it is. Its
programming is among the worst for control. Big bum makes it ugly.
Quantum Q6000 Q6400?
better indoors than their own R4000 above. But not as short, or as narrow as my
own modified chair on this page... So still not as capable even INDOORS. And
they are pretty useless outdoors with the harsh ride that hard skinny tyres and
tiny casters provide, and they get hung up far too easily, etc see my forum! Or
review. Or ask a regular user... And all of the above have less ground clearance
too... Programming as above...
Bounders. All too long,
way too heavy, very dated. Rough ride on our streets unless: You fit the
"off road package" - gives the same rear tyres as the X5 and my own chair
use. But they just stick them on the outside meaning its hugely too wide. WRONG!
But they do steer. In a heavy kind of way... Huge ugly bum again!
Quickie Groove?. Modular. If you hear that word run! It means it
can be assembled in many ways and combinations. And it is of course it means its
bad at every one just as a jack of all trades is no good at any. And there
are all kinds of issues with its control system. Although I like its 8mph
motors. Shame they are wasted on this chair!
Invacare's chairs just kind of repeat the Pride Quantum
ones with all the same issues. As do all the rest. All very much the same.
All of the manufacturers seem to concentrate on god knows how many combinations
of fancy trick seating but don't get the basic powerchair right!
It seems that its not important! Well it is to me!
We are back to the "designed by committee" problem. How many even use tubeless tyres
for massively less punctures? Or offer even "more" uncomfortable skinny hard solid
(foam) tyres as a solution? Or add heavy suspension to try to do what a
set of decent fat balloon type tyres does much better? And have a look at one that's been used all year in
salt and road muck. Spot the bit that isn't corroded! Choose any brand...
Mine fits my bathroom because its smaller in every direction than all of the
above. And my van easily, It can be fast charged as needed at home or when out
from a vehicle, go on the beach, off road,
in snow, through woods, steers properly, does not corrode and offers a far
smoother ride on our streets.
Point me at another single powerchair that can do that,
and I will buy one! Its designed and built to be as tight and compact and as
controllable as humanly possible whilst giving a soft smooth ride both
indoors, on pavements or on the street. Or the beach/snow. No other chair can.
Had a comment from a Powerchair manufacturer (that will remain
nameless) by email.
Saying that: "they couldn't
these 145/70 - 6 tyres because they needed non black
"non marking" tyres for indoor use."
Well the black ones don't mark
anyway! But just for them I found the ones opposite >>>
They also happen to be available
in Red, Green, Blue, Yellow, Pink, and CAMOUFLAGE should you want them. And
probably in Grey too if you wanted. And no this isn't a joke. Another
excuse shot down in flames.
The real reason of course is
that we accept the overweight, underpowered, badly programmed, oversized, harsh
riding powerchairs that the "industry" give us now. And they don't need to
bother to get themselves organised and develop and move forwards as there's
little competition and big profits. Or maybe its just genuinely beyond them.
I think the majority of them just have no clue.
But If I can build a very
compact, comfortable, tight dimensioned chair in my bedroom with far superior
control and power, fast charge capability, big range, with both real in and
outdoor capabilities then they just are not trying. We wont even mention build
quality and finish or ride smoothness on our pavements or better ground
clearance or puncture resistance due to 4 ply tubeless tyres... Or snow,
mud, beach performance. You get the idea...