25th-Mar-26, 02:29 AM
Merit - what to do, what to do???
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25th-Mar-26, 07:06 AM
Quote:the Ferrari Dino #6 car pictured above has those wheels they work ok for me. Maybe for some of the German cars they are a little small but I can live with that.
Yes the Dino looks fine...are there no other options?
25th-Mar-26, 11:59 AM
(25th-Mar-26, 07:06 AM)munter Wrote: Yes the Dino looks fine...are there no other options?
not that I know of for 3/32 axles there are some pricey wire wheels for 3mm axles to be found in Germany. I am also exploring using larger 3mm wheels cut down to a more prototypical width with 3D printed wire inserts.
25th-Mar-26, 02:16 PM
I think most of us who race to the following CSCRA rules in the UK use 1/8" 5-40 threaded axles and "vintage" wheel hubs fitted with the below mentioned Ortmann tyres.
If you wish to follow this route I suggest you contact Phil Smith (scaleslotcars) who should be able to put together a package of axles, wheels, tyres and inserts for you.
" Grand Prix class GP3. 1950-1960 Grand Prix and Indy Cars
(Any car which competed in a Formula 1 race or any other event counting towards
the Drivers World Championship during this period).
• Motor orientation: Inline only*.
*Except that Vintage motors designed to be mounted as sidewinders can be used
provided that the motor and drive gears are covered by the body.
• Minimum ground clearance: 4mm.
• Track dimensions must be 1/24 scale within + or – 3mm and must not exceed a
maximum overall width of 66mm.
• Front wheels and tyres: Minimum diameter 27mm, minimum width 6mm.
• Rear wheels and tyres: Minimum diameter 29mm, maximum overall width 9mm.
Wheels must be a minimum of 17mm diameter to represent a 15 inch wheel, and can be
up to 19mm diameter to represent an 18 inch wheel.
All tyres must have a realistic aspect ratio. Square section tyres will not be accepted.
Recommended tyres for this class are: Ortmann 46a (Front) and 46 (Rear) but there are
other tyres in the Ortmann and other manufacturer’s ranges which would also be
suitable."
If you wish to follow this route I suggest you contact Phil Smith (scaleslotcars) who should be able to put together a package of axles, wheels, tyres and inserts for you.
" Grand Prix class GP3. 1950-1960 Grand Prix and Indy Cars
(Any car which competed in a Formula 1 race or any other event counting towards
the Drivers World Championship during this period).
• Motor orientation: Inline only*.
*Except that Vintage motors designed to be mounted as sidewinders can be used
provided that the motor and drive gears are covered by the body.
• Minimum ground clearance: 4mm.
• Track dimensions must be 1/24 scale within + or – 3mm and must not exceed a
maximum overall width of 66mm.
• Front wheels and tyres: Minimum diameter 27mm, minimum width 6mm.
• Rear wheels and tyres: Minimum diameter 29mm, maximum overall width 9mm.
Wheels must be a minimum of 17mm diameter to represent a 15 inch wheel, and can be
up to 19mm diameter to represent an 18 inch wheel.
All tyres must have a realistic aspect ratio. Square section tyres will not be accepted.
Recommended tyres for this class are: Ortmann 46a (Front) and 46 (Rear) but there are
other tyres in the Ortmann and other manufacturer’s ranges which would also be
suitable."
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