Retro Monster Truck Rules & Class Information
This class is in the spirit of the golden age of “Stage 2″ monster trucking as seen on the TNT or USHRA racing circuits of the late 80’s. This is the period where the lumbering early monsters (i.e. Stage 1) gave way to lighter, more powerful trucks with racing as the main purpose. The basis for the vehicles were modified stock pickups or heavy duty boxed frames. Suspensions had relatively little travel and were quite stiff still and as such, it made for wild, unpredictable events. The idea is to recreate this era with R/C chassis designs and suspensions similar to what was used during this time.
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BODY Classically styled bodies only (generally 1990 and earlier, please contact a TK official for anything that may be questionable from the 90’s). Does not have to be replica but must be period appropriate. CHASSIS Any chassis fitting in the spirit of the class (i.e. no tube frames) are legal. May be any material. Chassis must be either a Tamiya Clod Buster-based suspension truck or a leaf spring truck. JConcepts, sicNme Products, Sutton Motorsports and others are legal. SUSPENSION Suspension must be Tamiya Clod Buster-style, utilizing Clod Buster ladder bars, axle braces and anti-rotation brackets (or equivalent aftermarket of each), OR utilize leaf springs on all 4 corners of the vehicle. No 4-link setups or 4-link triangulation of any kind. Sway bars, sway brackets or sway braces (of any kind) are illegal. For chassis’ with stock or added sway bars, they must be disconnected. GENERAL/AXLES All vehicles must have a minimum of 2 solid axles. TIRES Chevron tread Tamiya Clod Buster-sized FULL-cleat tires must be used. Chevron tread, fully cleated (no cut tires) Clod Buster sized or bigger. Tamiya Clod Buster, JConcepts Firestorm, Golden Years and Golden 73's, and RC4WD Michelin MEGAXBIB are legal. No knobbies, spikes, "cut" tires (or cut-style tires) or straight-lugged tires. Pro-Line Destroyers, Devastators and Demolishers, RC4WD Rumbles and B&H, JConcepts Renegades, Launch, Knob, JCT, Firestorm Racer & Firestorm Runner, Bajas, Losi LMT or other short-course style tire or any other “modern” style cut tires are all prohibited. Dual Tractors are legal to mimic certain era-specific trucks. No shaved tires are allowed. WHEELS Most scale appearing monster truck wheels are legal as long as it does not put truck over max width. Any Losi LMT or other short-course style wheel/tire is NOT allowed. WHEELBASE No limit. WIDTH 15.4″ max width on all trucks (outside of tire to outside of tire). This is half inch over stock 14.9″ Tamiya Clod Buster. JConcepts Tribute Wheels must be run with 11mm or 18mm adapter. MOTORS All 27T machine wound motors are legal. NO hand wound motors! One motor per axle allowed. BATTERY Limited to one 7.6V 2S lipo. “Cycling” of batteries is prohibited! STEERING May be 2 or 4WS (or more than that if 6×6 or above). SHOCKS No maximum number or length. May be oil filled or friction. GEARING Gearing is open. PLEASE NOTE |
