S.A.500.L. Twist Grip Assy

 For soldering the nipples to 515-Cable Inner, see either:

The vintage Motorcyclists’ Workshop by Radco, ISBN 978 0 85429 472 5 page 241

 or

 http://www.venhill.co.uk/Motorcycle_Tools/MISCELLANEOUS_TOOLS/VT13_CABLE_INNER_WIRE_BIRD_CAGING_TOOL.html

 Correct soldering of the nipples is essential, because force is exerted all the time during ‘coupling’ and not at ‘decoupling’. There is always strain on the cable while riding.