RE: Goldberg Extra 300
Dobra,
Dimensions of gear:
Height 6 7/8" (measuring from ground to fuse at axle location: 8 1/4")
Width 16 1/2' (center of wheels: 17 1/2")
Forward Sweep 2 3/4", from each side of the material, front to back.
I measured with a combination square, contact the manufacturer for exact measurements.
It stands taller than stock, the wheels are much further forward. The width of this gear is less than stock, but the stock wire gear bends even on perfect landings, and so I don't have a reference for the stock height or width.
If the exchange rate is good now, give Graph Tech a call.