Shells and threads are available in the following versions:
English “BSA”
Italian
French
Thread type
1,37" x 24
36 x 24
35 x 1
Size
68 mm, 73 mm or 83mm
70 mm
68 mm
Width of the shell
left side: right-hand thread
right side: left-hand thread
both sides: right-hand thread
both sides: right-hand thread
in some cases the right side
Rotational direction
Lighting equipment
Halogen bulb
Lighting equipment
6 Volt
Volt
2,4 Watt HS3
Traditional bulb
6 Volt
2,4 Watt
Rear light
6 Volt
0.6 watt traditional bulb or diode
Dynamo
6 Volt
3 Watt
Watt
The bottom bracket is usually screwed into a shell located on the frame.
87
1
2
3
4
5
6
7
8
has a left-hand thread
ENGLISH
