Mini Stox Construction Rules

1) Cars to be 1/12th scale reasonable representation of a full size Mini type car.

2) Any make of servo saver may be used on the steering servo.

3) Any make of track rod or ends may be used.

4) The tyres may be changed from the original kit tyres (sleeved tyres are allowed on the all Mini Stox)

5) ABS body shells, windows must be cut out.

6) Ball races allowed on rear axle only.

7) Only Mini Stox or R12 parts to be used.  No V12 suspension parts. Countersunk screws must not be used on the underside of chassis.

8) Any commercially available speed controller may be used, must have reverse fitted and working. Mechanical to have a maximum retail price of £30-00, Electronic £60-00. Receiver battery packs are allowed.

9) Any holes drilled must be used or filled.

10) The motor may be fitted to either side of the chassis, providing that there is no modification or alteration to the chassis or mounting blocks.

11) Max. width of car including body shell to be the same as the V12 Hot-Rod. Max. length of car, including bumpers if fitted to be 292mm. Bumpers to be fitted externally.

12) Bumpers to be fitted and constructed of plastic/nylon or any other suitable resilient material, length not to exceed 140mm, width not to exceed 15mm. Bumpers must not protrude beyond the outside wheel edges.

13) Max width of tyres to be front 25.4mm and rear 32mm. Max tyre diameter to be 57mm. Only foam tyres allowed.

14) Cars to use four cells only, cells to be sub-C sized cells only, with a nominal voltage of 1.2 volts per cell, cells to be Nicads or Nimahs.  Cells must be readily identifiable. Battery mountings may be changed from the original.

15) Motors must be Mabuchi RS540SH or the V14 only and must remain unopened. External motor bearings or fine pitch gears are not allowed.

16) Steel whip aerials and rollover masts are not allowed, and aerials must remain inside the body shell.

17) At BRCA events drivers name and BRCA number must be clearly displayed at the top of the front windscreen, not less than 5mm high.

18) At BRCA events the drivers roof grade colour (if known) must be on the roof of the car either painted or using tape to cover a minimum area 50 sq.mm.

20) Body and chassis must be securely joined at all times the car is on the track. No wings or aerofoils or any under body aids are allowed.

21) Alternative motor pinions may be used, providing no alteration is made to the motor mounting blocks. Motor fluid and additives are allowed.

22) If you intend to alter your car in any way that is not covered by the above, you must check with the Mini Stox scrutineer, for approval. We expect all drivers to use common sense when modifying cars and to enter into the spirit of the sport.

23) There must be a minimum ground clearance of 3mm, this is to include any protruding screws, 1mm clearance for spur gear.

24) Due to the unavailability of some spares for the old Mini Stox, substitute part may be used (such as available and used by the 1/12th Stock cars - i.e. motor mounts & front axle beam), providing they conform to any sizes within the rest of the construction rules.  For clarification, advice must be sort from the BRCA Mini Stox scrutineer.

25) If any scratch built parts are being used.  Parts must be available to other competitors to purchase.

26) Chassis to be single piece & constructed in GRP only, measuring no more than 220mm in length and 80mm in width.  Notches allowed in chassis for wheel clearance.