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Hy Rssuby, first is it a 1/24 or 1/32 scale your building. if its 1/24 pm me and i,ll send you some gears. its usual to have the motor lower in a 1/24 to get the cog down because of the big wheels. you wont get a motor mount for a 16d. only the germans sell a brkt for this size motor. let us know what scale it is. then we can put you on the right path for suppliers. as Big T said a *** paper is the usual method. john
 

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my srare gears wouldn,t be any use, there 1/24, bigger dia. you could use 64pitch gears and pinion. available from ken o racing[2554taken]] on us ebay. dead cheap. the motor brackets are on pendles site in the 1/24 spares. £10 for the pair. once youve had a look, buy some 20-20-1.5mm angle and make your own, its on ebay uk 500mm long bits cost less than a fiver inc P&P. cut a motor size oblong out of your brass base and take your motor mount measurements from there. the motor should be flush with the base. if its for a home track aim for 2mm at least ground clearance. and put tape on the bottom of the chassis to stop any shorting if it touches the rail. i use .015mm stickyback teflon tape, but selotape will work. if you want to use the 9t 48p pinion and the 16D aim for at least a 3.5-1 ratio. the nearest size to achieve it is with a 32t gear. any make should mesh with your pinion unless its metric, ie 32m. and you,l need at least a 5 amp power supply[switching-regulated] available on ebay from china for about 13 quid. their good and they last, and you wont get power surges to the other lane when the other car comes off. by the way thats a good tip mike, never thought of it, but i,ll give it a go on all metal setups where you need a bees dick of clearance. john
 
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