Dennis Enarson gives a thorough breakdown of his signature Demolition Rig Line, which now includes a top load stem in addition to the bars, cranks, and tires offered previously.  If it holds up to Dennis ripping parks and street spots in Southern California, it's going to be good to go!

Rig Bar - 9" & 9.25/ Width: 29"/ Back: 12º/ Up: 2º
Rig Crank - 4130 heat treated CRMO/ Larger 24mm/ 19mm splined spindle/ Lifetime warranty
Rig Tire - High pressure 110psi/ All Terrain tread pattern/ Sizes: 2.25 & 2.4
Rig Stem - 6061 Machined Al./ Length: 53mm/ Rise: 32mm