technical

Technical
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	Picture	Description	Availability
	Paint colours for post war DOTs	Cerise RED and BLACK all models up to 1956 BLACK for some Mancunians and some round frame up to 1962 RED for the Mancunians/RCA Sportsman and round frame models RED for the square frame models GREEN for the Mancunians and round frame models BLUE for the Brockhouse models Blue for late 60s Maicos etc SILVER for the square frames from 1964 on WHITE for the White strengths NOTE some DOTs around 1953/54 used RAL 3002 (Signal red)	RAL3005 RAL 3002 was used but only on a few bikes BLACK Modern alternative is FORD Cardinal RED Modern alternative is VAUXHALL flame red Modern alternative is Brooklands green (HYCOTE brand) The same colour as the Swedish flag blue Ford Monza blue Ford Silver Fox (not official but a member has said it is the closest they have seen ) TBC
		2 Stroke Concentric carb details This picture shows the alternative parts used in 2 Stroke Concentric carbs. The steel jet block is smaller and the needle jet DOESN'T have the 2 small holes in the flats	All sorts of places including Surrey Cycles Nametab Engineering Hitchcocks Surrey Cycles
		2 Stroke Concentric carb details The needle for the stroke is also different. It is shorter, 2 ⁵/16" long and it only has 1 identifying groove at the top.	Surrey Cycles Nametab Engineering Hitchcocks Surrey Cycles
		Front brake torque arm bolt, for the round frame Dots, 1956~1960. It needs a special washer and a Nyloc nut P	contact the club for updated information
		Centre stand clip for all round frame models. Pulling the large washer releases the pin from the stand	Small batch in pipeline current date is 10~07~2011 available on request
		Grimeca front hub & spacers Please note dimensions are for guidance and not necessarily 100% accurate	All parts available from the factory. You can also try North Leicester Motorcycles 01530 263381
		Grimeca rear hub & spacers Please note dimensions are for guidance and not necessarily 100% accurate	All parts available from the factory. You can also try North Leicester Motorcycles 01530 263381
		Square Frame front torque arm Hub end is a metric size 11mm and the fork end is imperial ⅜"	None
		Round Frame front torque arm
		Engine plates for 9E and Mancunians	email the club
		Round frame speedo bracket for bikes from 1952 until 1962	email the club
	Monza petrol cap rubbers Alloy Petrol Tanks, both round & coffin shapes	Both sizes	Surrey Cycles 01322 382 472
	RCA Wipac technical data RCA current data RCA servicing data RCA points data Wipac switches wiring	PDFs containing electrical data re the RCA 350 twin	Try any Norton Jubilee supplier for electrical parts
		Wheel offset dimensions, all measured from the brake flange to the rim	wheels for the Earles forked bikes Front is 20mm Rear is 36mm
		Head stock adjuster assembly for 1953 -1964 head stocks using ball races	contact the club for details. races available from the club
Frame wheelbase info	note that the 1959 season Round Frame models, both Trials and Scrambles, had a wheelbase of 52.5" as given in the specification published w=in Motor Cycling 18/9/58	In the Dave Curtis article on the Square Frame models in the "What you get" section the wheelbases are given as 53.5" for the Trials and 54" for the Scrambler which presumably arises from the different fork angles between the Trials and Scrambles bikes.