Technical
TO identify your machine click here

  Picture Description Availability 
HOME
factory
regalia
club
gallery
links
history book
technical
journals
sales
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 jet block Concentric carb

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 needle AMAL concentric

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

 

  fork torque arm bolt  

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
  Front toque arm bushes Square frame only 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 Try the DOT factory
  Round frame speedo bracket Round frame speedo bracket for bikes from 1952 until 1962 None
  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