1.0 Production 1000
1000 class is reserved for Modified SideXSides with a displacement of up to
retain the basic factory configuration and full functioning 4-wheel drive.
Stock shocks or
aftermarket replacement shocks are permitted so as far as the original chassis mounting points are
retained. Factory mounting position may have material added for the purpose to strengthen, but must
retain the factory material, and specifications. Upper shock mount can be repositioned but must bean off
the shelf bolt in kit. No weld in mounts allowed.
stops are not permitted
Long Travel Suspension
must be aftermarket off the shelf suspension kits readily available for sale and must not exceed an
outside track width of 77”.
factory suspension pivot points specifications must be retained and connecting points must be free of
cracks and in good physical condition as determined by the Chief Technical Inspector or his/her
delegate. Factory suspension pivot points may have additional material added for the purpose of
strengthening but factory material must not be re-moved.
WHEELS & TIRES
shall be visually checked for condition and must not be considered obviously unsafe by the Chief
Maximum tire size
must be factory-built readily available tires from any ATV/UTV manufacturer are
studs, screws or any other items added to the tire are not permitted. Grooving, sipping or other
modifications that involve removing material from the tire are permitted.
recommended that all component parts of the vehicle’s steering, suspension, chassis, drivetrain, and
running gear be secured with fasteners suitable to the task, and in good working order. Male threaded
fasteners should be secured with either: lock nuts, lock washers, cotter pins or safety wire and shall
have at least one full thread showing through the nut.
link and tie rod ends designed for use with a castellated nut and cotter pin must be secured with a
cotter pin. Spherical rod ends (Heim joints) are a permitted replacement for OEM-style tapered tie rod
ends. Aftermarket steering racks are permitted.
steering is permitted; aftermarket factory replacement steering products are
approved, but must
retain factory type. Aftermarket electric power steering is approved.
are considered the system used for slowing and stopping the wheels.
must be able to apply adequate force to lock up all four tires. Brakes must be in a safe operating
condition and free of leaks during the entire event. If brake system problems occur during the event
they must be repaired before continuing in competition.
or steering brakes are not permitted.
products are permitted.
pedal(s) mounted in driver’s foot-well must be able to operate all brakes with a single foot. Adjustable
brake bias is not allowed. Factory brake pedal assembly needs to be retained.
vehicle should have a means of applying continuous brake pressure while vehicle is parked with
occupant(s) outside the vehicle. Hydraulic “line-locks” or mechanical “park” mechanisms are
Each vehicle must
have a positive action on/off ignition switch in. The switch must be labeled “ignition on/off” and be
located within easy reach of the driver and from the outside of vehicle.
Batteries must be
All vehicles must
have a minimum of two taillights, two brake lights and one rearward facing amber light that is bright
enough to be seen, light must be on at all times while vehicle is running.
required for events where any portion of the on-course event takes place between sunset and sunrise. If
during an event any required light fails to operate, the light must be fixed or replaced at the next
available pit before the vehicle can continue in the event.
All vehicles must
be self-starting by use of an onboard electric starter.
SideXSide Association Competition Rule Book; Version 7.0 10-1-11
Page 47 of
Any of the
following commercially available fuels may be used:
pump gasoline (the type normally used in passenger vehicles for highway
use, this also
gasoline as manufactured
fuel (including bio-diesel)
Propane or natural
No alcohol, or
nitro-methane is permitted. Commercially produced, nationally advertised fuel additives may be used.
Nitrous Oxide is not permitted
modified stock fuel systems are approved, Safety fuel cells are required for any vehicle that has
modified its factory fuel system. Safety fuel cells shall consist of a bladder enclosed in a
smoothskinned container. The container shall be constructed of 20-gage steel, 0,060 Inch Aluminum, or
0.125 inch Marlex. All fittings must be built into the container skin and bonded to the container skin
as a integral part of the tank or mechanically sealed by a ring and counter-ring system by either flat
joint or an O-ring. Internal baffling is mandatory in all fuel cells. Foam is an acceptable internal
baffling. Bladder construction shall be of nylon or Delcron woven fabric impregnated and coated with a
fuel resistant elastomer, Rotary molded Polymer cells are acceptable when encapsulated in a container
constructed of 20 ga. Steel, or 0.060 inch aluminum.
may be approved by ISA
tanks shall be mounted in a fashion to protect the tank from damage due to a rear-end or side collision,
impact from debris or rocks from below the vehicle, damage due to roll over, or the possibility of
damage from chassis flex. Firewalls and/or bulkheads must separate the driving
any fuels, engine fluids, and acids. Rear mounted Fuel cells higher than drivers shoulder must extend
fire wall to 2 inches above fuel cell.
filler lines and positive-locking, non-vented fuel filler caps must be located and secured in such a
manner as to prevent them from being knocked off or open during vehicle movement, rollover, or
fuel vent line if so equipped must vent outside of occupants’ compartment and be directed away from the
engine and exhaust system.
fuel fillers attached to the frame or a body panel must use a flexible coupling to the tank. All fuel
fillers must be surrounded by a boot or splashguard. (Body panel is acceptable as a splashguard if it is
sealed.) Splashguard must direct fuel out of the vehicle and away from occupants.
Factory ECU’s must
be retained; aftermarket tuners are approved. Stand-alone aftermarket ECU’s are prohibited. Aftermarket
CDI is acceptable for carbureted rhino models.
ENGINE TRANSMISSIONS TRANSFERCASE & DRIVELINE
make is Limited to the stock configuration from the manufacture not to exceed 1000CC. no snowmobile or
motorcycle engines allowed.
shall be free of leaks.
replace a complete engine during an event. Entrant will be deemed to have replaced a complete engine if
the case has been replaced.
vehicle must have a functional reverse gear. Vehicles must be capable of being driven through all four
limited to stock as supplied from the manufacture. Transmission shall be free of leaks.
vehicles shall be 4-wheel drive
throttles, whether controlled by hand or foot, must have at least one return spring of sufficient
stiffness to instantly close the throttle plate when the throttle is released. Carbureted vehicles must
have at least two throttle-return springs, at least one of which must be attached to the carburetor. All
vehicles should have at least one throttle return spring at the throttle plate and one at the throttle
control (pedal or hand control). Computer controlled throttles (Electronic Throttle Control or
“drive-by-wire” systems) are exempt from the requirement to have a return spring at the throttle body,
but must have a return spring at the throttle control (pedal or hand control) or maintain the stock OEM
system. A positive stop or throttle override system must be used to prevent throttle linkage from
sticking in an open position.
throttle may be used if physical limitations require use of such device. Hand throttles must meet the
same requirements as a foot throttles, and must meet with the approval of ISA
coolers, transmission coolers and radiators located in front of the vehicle occupants must have a shroud
that, in the event of a rupture or leak, will prevent liquids from blowing back or leaking onto the
occupants. All hoses running through the passenger compartment must be shielded. Steel braided hoses do
not constitute a shield.
vehicles must start event in good working condition.
VEHICLE SAFETY EQUIPMENT
It is each
competitor’s responsibility to present a safe vehicle for pre-event technical
maintain their safety equipment including the roll cage integrity. ISA reserves the right to not allow
any cage designs that, in the opinion of the Chief Technical Inspector, is not fit for competition.
Competitors are ultimately responsible for their vehicle’s safety features, including the design,
fabrication, and quality of execution, maintenance and repair of the roll cage structure. The roll cage
is considered to be the main 6-point structure that surrounds and protects the vehicle’s
vehicles must be equipped with a roll cage fabricated of 1020 mild steel mechanical tubing or better
(higher carbon content or alloy steel). Minimum mild steel tubing guidelines for roll cage main
structure, based on dry vehicle weight rating (DVWR) in race trim, not including occupants, are: DVWR
Under 2000 lb. - 1.5” diameter x .095” wall thickness.
DVWR 2000 lb. -
3200 lb. - 1.5” diameter x .120” wall thickness. Note: See manufacturer’s reference charts for alloy
steel tubing equivalent strengths. No aluminum or
materials are permitted
cage main structure material may be CREW, DOM, WHR, or WCR mild carbon steel or 4130 chromoly alloy
steel. All welds must be of high quality and craftsmanship with good penetration and with no
undercutting of parent material.
roll cage components (hoops, braces, gussets, etc.) must have a minimum of 3” of clearance from any
vehicle occupant’s helmet when occupant is seated in normal driving/riding position. All roll cage
components that might come into contact with the vehicle occupants’ helmets must be
cages must be securely mounted to the frame, chassis, or body. Roll cage mounting
fasteners must be
at least 3/8” diameter S.A.E. or metric equivalent Grade 8 or equivalent or better when utilizing the
stock mounting positions. Sandwich plates, if used, must be oriented only in the horizontal plane. No
vertical or other non-horizontal sandwich plate orientations are permitted.
Welding of cab- or
body-mounted roll cages to body structure is strictly prohibited. Roll cage terminal ends must be
attached to a frame or body member that will support maximum impact and not shear or allow movement in
the cage terminal end.
vehicles must include factory or aftermarket door with permanent or secondary latching system to protect
occupants in the event of a roll over, collision. A chassis integrated door bar with an aluminum skin is
Gussets should be
installed at all major intersections, including diagonal and rear down braces,where single weld
fractures can affect occupants’ safety. Gussets of the same material and thickness as the roll cage may
(6) point mounting cages are recommended but not required over the occupants. Stock cage passes but not
minimum 0.040” expanded or flat sheet magnetic steel or 1/8” aluminum should cover the area immediately
above the occupants’ seats and be attached via welding or bolting to a steel tubing frame
DRIVER RESTRAINT SYSTEMS
All vehicles must
have a five-point H-style driver restraint system for each occupant. Driver restraints must incorporate
a lap belt, anti-submarine strap, and shoulder straps.
driver restraint system shall consist of one 2” wide anti-submarine strap, one 3” wide lap belt and two
3” wide shoulder straps. Sternum straps and chest buckles may be used. Hybrid Head & neck restraint
belts allowed when used in conjunction with a head and neck restraint system. The use of some form of
neck protection is highly recommended.
material shall be nylon or Dacron polyester. Driver restraint system must be in new or perfect condition
with no cuts, frayed layers, chemical stains, or excessive dirt and must be in flexible condition (i.e.
material must not be stiff).
portion of the driver restraint system may be altered in any fashion from the manufacturer’s standard
driver restraint systems must be properly mounted in accordance with manufacturer’s
recommendations. Bolt in, wrap-around, and snap-in mounting styles are permitted, except that lap belts
may not be mounted by wrap-around method.
addition to conforming to the manufacturer’s directions, driver restraint system installations must also
conform to the following:
driver restraint system must be mounted to structural members able to withstand
the load the
restraint system will place on them in a crash, without rupturing or failing.
restraint must be matched to a properly constructed, fitted, and installed seat
to the frame / chassis / roll-cage.
must not be modified to create belt slots.
belts should be as short as possible to minimize the belt's stretch.
routing must allow webbing to pull in a straight line against anchor point. Mounting
brackets must be
at an angle that is compatible with the direction of pull on the webbing.
mount is a double-shear bracket.
restraint systems must be mounted using high-quality hardware appropriate for
1/2" or 7/16" OR Metric equivalent fine-thread Grade 8 bolts and Grade 8 deformedthread locknuts (or
better) are recommended.
must not rub against any surface that will cause them to fray.
slides must be located as close as possible to the anchor plate, or if belt is wraparound style, to the
bar around which they wrap.
using non-sewn anchor plates must be wrapped back a fourth time through the 3-
mounting should be confined to shoulder and 5th point belt installation and must include some method to
prevent lateral movement of the belts.
restraint systems must be worn properly tightened, by all occupants; at any time thevehicle is in
safety nets are mandatory on all vehicles and must cover the complete open area of the cockpit on both
sides of the vehicle to the extent that it is impossible for any limb or body part of any occupant to
protrude from the vehicle at any time when the occupant is properly seated and strapped in their normal
driving / riding position.
must be installed on the inside of the roll cage to prevent them from being damaged or coming off in a
roll over or slide on the side.
attached to doorframes are permitted when Door frame is equipped with a latch that
prevents it from
opening and locked permanently closed.
must be installed so that the occupants can release the netting unassisted and exit the vehicle
regardless of the position of the vehicle.
net border or edge and the net attachment must be made of materials that are as strong as, or stronger
than, the net itself. Net attachments must be at a minimum of every 6 inches. Acceptable attachments
include, but are not limited to: steel hose clamps, snaps, lift-a-dot, metal hooks, and steel rods. Nets
must be tight so that when subject to a pushing force of approximately 50lbs the net deflects no more
than four inches.
All seats must be
manufactured by a recognized manufacturer and approved for racing application for human beings. Seats
must be interchangeable between left and right sides. Mock seats are not approved.
seats must be securely mounted to frame of vehicle.
track-type seat mounts must be securely mounted to frame of vehicle to allow no lateral or vertical
movement between seat and frame or mounting track and frame.
constructed of at least 2” thick resilient padding and being approximately 36 square inches in area are
required or the use of a high back seat.
GENERAL VEHICLE COMPONENTS
vehicle occupants must be able to easily enter and exit unassisted with the vehicle in any position.
Firewalls and/or bulkheads must separate the driving compartment from any fuels, engine fluids, and
weight shall be the empty dry weight of the vehicle. Empty dry weight is measured without fuel, spare
tires, tools, spare parts or occupants in vehicle. Official weight will be the weight as shown on the
ISA official scales where applicable.
floorboards as delivered from manufacture are required on all vehicles. Floorboards must cover the
entire area from in front of the pedal assembly to behind the seat(s), and from the outside edge to the
outside edge of the vehicle.
hazardous front or rear bumpers, nerf bars, frame heads or other protruding objects from vehicles are
permitted. Ends must be capped and rounded to prevent any sharp edges. Bumpers and nerf bars must be
designed in a way that reasonably minimizes the chance of two vehicles becoming locked
view mirror is required on all vehicles. Mirrors must have at least six square inches of mirror surface.
Mirror must have a reasonably unobstructed view of area behind vehicle.
spare parts and extra equipment carried on or in a vehicle must be securely attached or stowed to
prevent movement during competition. All spare parts and extra equipment must be carried in a manner
that minimizes the risk of injury to the vehicle occupants.
vehicle body parts must remain on the vehicle (accidental damage excluded) during the entire
Chassis frame may
not be modified from factory specifications. Vehicles are to retain overall UTV appearance as delivered
from the factory. Weight minimum 1200lbs
vehicle weight less occupants is 1200 lbs.
vehicles in competition must be identified with the correct entrant number.
shall be assigned to Drivers of Record on a first-come first-served basis.
display entrant numbers on both sides of vehicle
participating in any series will be required to retain their number for all events in the
assumes no responsibility for scoring vehicles with unrecognizable numbers. It is the vehicle driver’s
responsibility to maintain numbers in recognizable condition.
symbols, and names may be displayed on competition and support vehicles
provided that they
do not interfere with required official identification markings and that they are in good taste as
judged by ISA sanctioned representatives.