We are at the next Kempton autojumble - September 19th 2026
BSA Magneto/Dynamo Strap For B31, B34, 3/4″ Wide Kit
Price range: £35.00 through £56.80
These magneto/dynamo straps fit a number of different models, and may be bought as they are (straps only), or with fittings added, to make a complete assembly. (search for “BSA Mag/Dyno Strap Kit & Parts” for further details).
Select your required option of, bare straps, complete kit with trunnions (2-off), reduced hex strap bolt (1-off) and saddle washer (1-off).
Description
These magneto/dynamo straps fit a number of different models, and may be bought as they are (straps only), or with fittings added, to make a complete assembly. (search for “BSA Magneto Dynamo Kit ” for further details).
Select your required option of, bare straps, complete kit with trunnions (2-off), reduced hex strap bolt (1-off) and saddle washer (1-off).
You may also like…
Dynamo/Magneto Strap Trunnions 1-1/2″ (Pair)
This pair of 1-1/2" long trunnions are designed to fit the magneto/dynamo straps found on the B31/B33, A7 and A10 as well as the DBD32/DBD34 BSA Gold Stars made in the late 1950’s and ‘60’s. One is tapped while one is drilled clear for the bolt. These components form part of a complete assembly that is available separately
Magneto/Dynamo Strap – Complete Assembly
This complete magneto/dynamo strap kit is suitable the B31/B33, A7 and A10 as well as the DBD32/DBD34 BSA Gold Stars made in the late 1950’s and ‘60’s. The kit includes the two straps, trunnions, securing bolt and thick washer(2-923). Please note that all the component parts are also available separately. This one is the wide strap version (1-1/2"), and we do offer a narrower one that has 3/4"- wide straps.
Magneto/Dynamo Strap Bolt
This bolt is designed to secure the magneto/dynamo straps fitted to the B31/B33, A7 and A10 as well as the DBD32/DBD34 BSA Gold Stars made in the late 1950’s and ‘60’s. It has the correct Cycle thread and hexagon size. This component forms part of a complete assembly that is available separately.
Magneto/Dynamo Strap Saddle Washer
This saddle washer goes under the head of the bolt (or nut) that clamps the magneto/dynamo straps together and is suitable for the B31/B33, A7 and A10 as well as the DBD32/DBD34 BSA Gold Stars made in the late 1950’s and ‘60’s. It is profiled to match the strap. This component forms part of a complete assembly that is available separately.
