I was under the impression it was to bring back the 1 1/2 tube trucks.?.?
I found this in the new rule book...
PTR-3 CHASSIS/ROLL CAGE
• All trucks must be left side steer only. Steering wheel, seat, and pedals must be in approximate stock location.
• All tubing, welds, gussets, and roll cage construction must be approved by CHAMP OFF-ROAD.
• Material for roll cage construction must be 4130 chromoly or ASTM 1018/1026 CDS/DOM
round tubing (see SR-9).
• Minimum tubing diameter and thickness for vehicles weighing:
• Up to 3000 pounds – 1 1⁄2 inch diameter by .120
• 3001 to 5000 pounds – 1 3⁄4 inch diameter by .120 (1 1⁄2 inch diameter is allowed with
pre-approval from tech director prior to entering race track) 1 1⁄2 inch caged vehicles
will not be allowed after January 1, 2022)
• Over 5000 pounds – 2-inch diameter by .120
• All tubes must be welded 360-degrees around the circumference of the tube.
• Gussets are required on all intersections in driving compartments within 3 inches of
intersection. See diagram on FIG 5
• All plate gussets must be of the same material and thickness as the roll cage, measuring 3
inches by 3 inches.
• Tube gussets and wrap gussets must be a minimum of 1.0 diameter x .065 thick.
• All trucks must have 3 horizontal door bars per side. Effective immediately all newly
built trucks must incorporate the driver’s side extended impact zone bars. See diagram. Existing race vehicles will be required to update to the new driver side extended impact door bars. See diagram on FIG 6. The drivers seating location and head area in relation to the left side window opening and roof area tubing locations and construction will be under review on all trucks to maximize the driver’s safety and head protection.
• All roll bars that may come in contact with driver must be covered with hig...
Apparently the 1.5’s will be out after this year...
Though I think you should be allowed to graft a 1.75, to an existing chassis?
Anyone hear different?