I've talked to Jj1479 in other places on the interwebs about his set-up, but I'll offer up some more info on this subject.
The biggest issue with a Universal Mount for a BX 4in1 is width. We faced this challenge when designing the lightest, strongest grapple on the market for a subcompact tractor; our new
55" Wicked Grapple Rake.
You see, the outer width of a BX pin on mount is right at 33", so you have room for the cylinders to fit on either side and keep bucket width down to 48".
BUT
Throw a Universal Mount on there and you're dealing with over 44" of width. Add the outer cylinders & hydraulic fittings and 55" is as narrow as a 4in1 or rake style grapple can get.
The best 4in1 solution I know of for a subcompact tractor with SSQA is the
WR Long HJ2L model. 60" is the smallest one with a SSQA, but it still is ONLY about 260 pounds. Pretty impressive! The 60 isn't shown on that page, but it can, and has been built.
Right here is the best grapple in existence for a subcompact SSQA tractor wanting to maintain as much lift capacity as possible. The design wasn't easy, but it was worth it.
It's been an awesome seller right out of the gate for the new BX and B series, John Deere 1025 and 2000 series, Mahindra Max, and more little ones!
I don't have pics of one on a BX yet & my only excuse is lack of time. Our
BX2670 has this
Quick Attach Adapter on it, so we could do it in a jiffy.
Travis
Kubota B2620
Kioti CK30 shared by another TBN member