VINTAGE BRITISH CABLES

The Best Quality reproduction SMITHS Speedo & Tacho Cables for your Vintage Ride
Custom Made Speedometer & Tachometer Cables for Motorcycles & Automobiles
Using NOS Fittings & Original SMITHS Presses and Dies
Medicine Hat, Alberta
Smiths Equipped
 
Aberdale
A.B.J.
A.C.
Allard
Alvis
AJS
Ambassador
Ariel
Armstrong
Aston Martin
Austin
Austin-Healey
B.A.C.
Beardmore
Bentley
BLMC
Bond
Bown
Bristol
Brockhouse
Brough Superior
BSA
Chrysler
Citroen
Commer
Corgi
Cotton
CYC Auto
Daimler
Dayton
DeLorean
DMW
DOT
Douglas
Ducati
Excelsior
Fairthorpe
F.L.M.
Ford
Francis Barnett
Frisky
Greeves
Harley Davidson
Healey
Hillman
H.J.H.
Humber
Indian
Isetta
Jaguar
James
Jensen
Lagonda
Lambretta
Laverda
Leyland
Lotus
M.G.
Matchless
Morgan
Morris
Moto Guzzi
Moto Parilla
New Hudson
Nimbus
Norman
Norton
O.E.C.
Panther
Pashley
Phoenix
Princess
Reliant
Riley
Rolls Royce
Rover
Royal Enfield
Scootacar
Scott
Siddley
Singer
Standard
Sun
Sunbeam
Swallow Gadabout
Tippen
Triumph
Tandon
TVR
Velocett
Villiers
Vincent
Volvo
Wolseley
 
union jack smiths instruments 
NOS Smiths Fittings
   Home      Smiths Gearboxes for Motorcycles
 
This page provided for information purposes.

SMITHS GEARBOXES FOR MOTORCYCLE SPEEDOMETERS

 
HUB DRIVE - Moped.
Code No. BG.5337 or   BG.5320 series.
(Single Dog).
 
HUB DRIVE - Moped.
Code No. BG.5348 series.
(Double Dog) Ratio: 2:1.
 
***HUB DRIVE - Motorcycles.
Code No. BG.5330-5333 series.
Ratios: On  application.
Replaces BG.5100-5103 series and
52283/50-69. Hub drive gearbox for
near side or off side fitting, over or
underslung to maintain a clockwise
output. Body can be provided with
centre hole of alternative diameters.
Overall thickness of box is .895"
(22.4 mm).
 
BRAKE DRUM FITTING
Code No. BG.2504 series. Short Reach,
Right Hand Gears, BG.2500 series, Long
Reach, Right Hand Gears, BG.2511 series,
Long Reach, Left Hand Gears, BG.2510
series Short Reach,Left Hand Gears.
Ratios: 5 : 12 and 8 : 12.
Gearboxes are available with left or right
hand gears to maintain clockwise output.
Pinions and gears used with this type of
box for internal brake drum application
are available in a variety of ratios, subject
to the internal dimensional clearances.
HUB DRIVE - Scooters, Light Weight
Motorcycles.
Code No. BG.5116 & BG.5117 series.
Ratio: 2 : 1 and 1.55 : 1.
This Lightweight gearbox, with a dirt 
exclusion seal, is a standard fitting 
on many lightweight machines and
can be supplied for left or right hand
fitting. The adaptor, illustrated separately
above, can be supplied to suit varying 
requirements.
 
 
EXTERNAL DRIVE
Code BG.2507 series (17 or 22 teeth
pinion).
Ratio: 5 : 12 and 8 : 12.
For external gear drive, various types
of universal brackets, gear rings and
pinions are available.
Here again, left or right hand gears can be
incorporated to give clockwise output.

***Gearbox Ratio can be determined from the colour of the celastoid washer under the grease nipple or screw.

Ratio 1 : 1  Black Celastoid.           
Ratio 2 : 1  No Identification.           
Ratio 8 : 3  Yellow Celastoid.           
Ratio 14 : 9  White Celastoid.       
Ratio 19 : 10  Green Celastoid.          
Ratio 21 : 10  Red Celastoid.           
Ratio 20 : 9  Light Blue Celastoid.           
Ratio 18 : 10  Dark Blue Celastoid.
 
 
 
 
25224
2504
 
70549
1508
 
52283
 
5331
 
Rev Counter
 
52283 Gearbox color is indicated by the last number.
52283/XX/1  Black
52283/XX/2  Red
52283/XX/3 Alumn.
52283/XX/4 Green
52283/XX/5 Drab
 
 
 
NOS Smiths
BG.5330/887 19-10 Ratio
1964-65 TRI 3TA, 5TA $120