Fric­tion and non-fric­tion

Old Bike Australasia - - LETTERS TO THE EDITOR -

Read­ing Rob Carmichael’s let­ter on “How to Throt­tle Parkin­son’s” re­minded me of the fric­tion screws that were found on the twist grip of what are now classed as vin­tage ma­chines, BSA Ban­tam, AJS 16M, Nor­ton Dom­i­na­tor etc. Yes I can re­mem­ber these when they were new off the pro­duc­tion line. The screw was tight­ened onto a brass clip which put fric­tion onto the twist grip sleeve un­til it would slowly turn un­der the throt­tle sleeve spring and then the screw locked in po­si­tion. Now be­ing the rider of a Honda with two car­bu­ret­tors, I find a cross sec­tion of in­ner tube, a rub­ber band, can be placed

over the rear view mir­ror stem and un­der the twist grip to give the fric­tion re­quired to just al­low the throt­tle to slowly close when the hand pres­sure is re­moved. It didn’t cost $1000 or even $100 but it does the job and irons out some of the rear view vi­bra­tion. Who said Ti­tus was a Ro­man? John Wil­ford Queens­land

Newspapers in English

Newspapers from Australia

© PressReader. All rights reserved.