The Wade/Wood Wheel is a 46m wheel (Lambrink 46L) standing at approx 150ft tall.
The RCS La Grande Wheel is a Bussink Wheel (model RL50). Bussink sold mfg rights in 2008 and the company who produces the wheels now is Dutch Wheels B.V. Despite the model number of the wheel being RL50, the actual size of this wheel is "approx 45m" (which converts to 147ft) according to the link below:
http://www.amusement-rid...oduct/giant-wheel-r50-sp Last year, RCS ordered a new set of enclosed gondolas for the ride and re-named it La Grande Wheel XL. I believe they also upgraded the decking too.
RCS owns a 33m Dutch Wheel, a 33m Lambrink Dutch Wheel, and the La Grande Wheel XL.
Regardless of who owns the title for largest portable giant wheel in North America, both are beautiful wheels and I give both owners credit for taking on the substantial investment of the pieces plus transportation and operational costs to keep them on the road!