9 replies to this topic

[Ches]

Looking into purchasing some...

This stuff is like a foreign language to me..

Noticed the Uni-Tine; They say they are for low profile chairs? Does that have something to do with the Caster Barrel to Floor Height? I understand they arent as shock absorbing as the other Frog Legs..but what is the point, just the single fork? That one sided fork is good lookin' tho.

I was searching the old post for some information, one post that stood out to me was something Kim and Sophie said about issues with legs tensing up and spazzing as she jumped steps and such, causing her legs to fall off footplate or make things just that much more difficult.. I have that same problem.. she said the ones with suspension had eliminated a lot of those little problems..
Can anyone else vouch for that?

Can anyone with the Uni-Trine say they've had the same results?

One more thing, for future reference.. if I order a new chair in the coming years how easy would it be to get the right fit for the same pair of frog legs Im looking to buy now?

[wheeliebear75]

I've got THE "frog-legs". I can vouch for how much jarring it/they take out of the ride over cobblestone & the truncated domes around the trolley boarding pads.

I am NOT 100% sure on this...BUT...I THINK that what they meant by lower to the ground is that some chairs especially the kind that have the swing away footrests tend to have a tall/longer fork for the casters making the tubing where they connect further off of the ground.

As for if your NEXT chair can also use the "frog-legs"....just ask/double check when you're looking at which model to go with that you've already made sure it CAN have the "frog-legs" on it.

Hope that helps.

[oldwheelz]

When I got mine I called directly to Frog Legs so that I would get the right ones. They were very helpful and sell them cheaper that any other place I could find.

[dreamerr]

I can't wait for more answer because I was told I would feel vibration which would be very bad for me.

[Ches]

OldWheelz.. I was thinking I would order from the site as well. Despite Sportaid's lower price, they dont have ask about weight or get as specific as the Frog Legs dealers themselves.

Surely someone else has some input as well.. thanks Wheeliebear btw!

[russ1]

Ches - I spec'd frogs legs on my first off road chair - they do do what they're designed to do quite well but there are downsides. They will smooth out the bumps of cobbles and the like but if your chair has quite a short wheelbase (the distance between the front and back wheels) the compression in the forks as you hit the bottom of ramps or small steps can cause the front of the chair to dive and throw you forward which can be quite disconcerting. They're also virtually impossible to set up properly to eliminate castor speed wobble because the compression introduces exactly what causes the wobble.

The chances of being able to swap the frogs legs over to a new chair are low - at the least you're likely to need a different pivot bolt unless it's the same type of chair you get.


I've never bothered to have them on subsequent chairs preferring a soft roll castor as a middle ground compromise.

Cheers
Russ

[Tetracyclone]

What does being a girl have to do with this?

[Ches]

Just a warning that it may not make much sense.. technical terms and such. Mechanics are NOT my thing!

[pistol_pete]

I'm not getting them on my next chair.
They are good but they're probably the reson for most of the black marks on my doors in the house.
The bearings eventually get sloppy, I've already replaced one and the other one is on the way out, and at nearly $400 a pop, too exy.
I get speed wobbles if I go too fast.

My next chair is titanium and I was told that a titanium frame will absorb a lot of vibration compared to an aluminium one.

Interestingly, I was also told by the new wheelchair guy that just about everyone who didn't get them on their first chair will get them on the next, and just about everyone who did get them on thier first will opt not to get them on their next.

Weird or what?

I will know the difference in about two weeks.

[Ches]

I, too, currently have the soft rolls. After all my looking around, it looks like the soft rolls are the only ones without any complaints.
This is all started b/c my ball bearing needs to be replaced, and my caster spacers are starting to rust.. I got VERY sidetracked when I went to order some new ones.

Thanks guys!