Want to upgrade your existing HK500 to torque tube?
This kit is all you need to make the change from belt to TT.
All parts required are included.
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At the time I bough this all I really needed was the boom block which goes into the main heli frame but I couldn't find it anywhere or rather I had no idea what part number it was (H50116) There's one for the Align Pro (H50116A - Note the "A") which will not fit the regular HK500 heli as it's too narrow and you would need to shim it.
Here's the bad;
(1) Of course the torque tube arrived severely bent and un-usable.
(2) The gears (front and back) aren't properly formed and don't mesh well and feel grindy
(3) The gears them selves can be swapped out for align parts but there is a weird aluminum casing housing the front bearing inside of it, so for sure you can't install align bearings on the boom block without this aluminum part. You'd have to get the bearings out of it and slip new ones in, I've been unable to remove the bearings so far.
(4) The torque tube bearing feels kinda cheap, but I'm sure it will do it's job.
(1) The boom b