This is the latest creation from the shop floor here at Grothus Dragbikes. It is an 83.5-85.5" long Hayabusa Pro Extreme chassis. Crank to axle is 57-59" and the entire chassis weighs just 45# with the axle blocks and axle. It is constructed with USA Manufactured 4130 Chrome Moly tubing, mostly 1.00"OD X .058 wall round tubing and 1.00 X 1.75" rectangular tubing. The tubing fit up on all GDB frames is as close to zero (0) fit up as possible which ensures great integrity during welding and as minimal movement of the tubing when welded. This type of chassis design has been as quick as 6.20 in the 1/4 mile and 3.90 in the 1/8 mile. All of our chassis are hand built one at a time with the utmost care and craftsmanship we are capable of.