I've owned a Q720m & a Q710, both with tilt, lift, recline, power legs and 8 mph package (I'm 120 pounds; it's worth it for me.)
It appears to be identical to the chair marketed as the Jive M. There are other *similar* versions, that have junkier parts, and the Pulse 6, which is a simpler, lower-end version.
These do climb curbs like this: https://www.youtube.com/watch?v=UxqvTBHknzA
And it can do all this: https://www.youtube.com/watch?v=XtbSipBS900
My body and nervous system can't tolerate the jolts of a typical powerchair. I had to refuse an Invacare TDX-SP a decade ago after going into shock and spasm from a brief spin outside in one.
The Quickie 710m was a infinitely smoother; it was a literal dream. The problem: faulty suspension. In 10 years, I can't count the number of times the gas/oil struts responsible for the smooth ride have failed, often during installation or under light use.
The original struts would just pop and there'd be a small splotch of oil on the ground (happened on day two with the first chair.) Then the chair would behave in a variety of subtle of wild ways.
The manufacturer, Sunrise has 'upgraded' the strut/dampener several times over the years, even switching companies-- each time the ride quality got bumpier and harsher while only slightly improving durability. Failure rates at installation never improved. The system was very, very expensive, and time consuming to replace (especially after being driven for months collapsed or leaning to one side!) and required the installer be skilled, practised on the particular suspension AND LUCKY. I was recently quoted $3,700 to do just the suspension job, much of this for parts!
My dilemma: I have no mobility currently for quite some time (a long story), and insurance and vendor are offering me the direct successor and nearly identical appearing Q700M –they’ve said it’s that or nothing. I wasn’t going to take it as the chair has had me sidelined, almost no-one wants to repair them.
Worse, the chair almost got me killed by going from partial failure that I’ve had to drive hundreds of miles and many months in on numerous occasions. This time the DME ‘lost’ my service request several times. I started my normal commute (I live on the top of a small hill) when the chair suddenly became %100 unsteerable, uncontrollable, and there was no way to stop or slow down. The front and rear casters were spinning madly, the swing arms up in the air or bouncing on and off the ground; the chair was pitching in every direction. I chose to dive out before getting thrown, though the chair bucked me before I could clear, once my hand left the joystick.
I’m considering taking the chair after seeing that they’re advertising a “completely redesigned” suspension (marketing it as Sure Grip Pro). All I can learn is that they’re using a new manufacturer for the coil spring/ dampening strut. I can see from the schematic on Sunparts.com that they’ve simplified some of the very poorly designed rear swing arm.
How can I figure out if they’ve finally done a good enough job? Or if they’ve just found a way to keep selling a fatally flawed product? There were several revisions in 2022, but the Sure Grip happened Spring or June of 2023.
Totally Normal demonstrated on his Youtube channel that the Quantum Fore front shipped with the suspension struts in full extension in the resting position-- I don't think that's the issue here, but have no intact chair to test. I do have a lot of photos of both my chairs jacked up, can check if the casters descended.
Any ideas on how I can suss this out, and fast?
This has been the greatest stress of my life for the past year plus; I can't believe I'm posting this ...
Thank you to anyone who read through this.
Best Regards,
~S