The BSA A7-A10 Forum

Technical => Frame => Topic started by: trevinoz on 25.04. 2019 22:27

Title: Plunger brake pedal
Post by: trevinoz on 25.04. 2019 22:27
I was having a chat with Russ yesterday about the plunger brake pedal.
He was querying the stop screw shown on the parts sheet. He was at a loss as to where it fitted.
I had a look at my collection of pedals and found out of four, one has provision for an adjuster.
I am curious as to when this modification took place, two pedals are still on their frames and are 1951 models and don't have adjusters so I assume that this mod was introduced some time after 1951.
Any ideas?
Title: Re: Plunger brake pedal
Post by: duTch on 25.04. 2019 22:45

 I went through this before and my guess from the parts lists is that they're introduced after '53 for '54 onward ...

 My engine is '53 but think frame is ~'56. I have a non-adjuster pedal in use and bought an adjuster pedal on fleabay, but the prick never sent it *bash*
Title: Re: Plunger brake pedal
Post by: Greybeard on 25.04. 2019 23:14
My brake pedal has the stop screw. 1955 very original bike.
Title: Re: Plunger brake pedal
Post by: trevinoz on 25.04. 2019 23:29
Seems logical that they are for the BA7 frame.
Title: Re: Plunger brake pedal
Post by: Brian on 26.04. 2019 00:39
I'm pretty sure you are right Trev, 1953 seemed to be a year they introduced quite a lot of small changes over all the models. I think late in 53' there were even more changes just at the point they were moving to the swingarm models.
Title: Re: Plunger brake pedal
Post by: AdrianJ on 26.04. 2019 06:53
My engine and frame are late 53.  54 model year I think and the bike has the adjuster screw. I've just refitted it.
Brian - yes, mine has lots of 54 features.
Adrian.
Title: Re: Plunger brake pedal
Post by: Rex on 26.04. 2019 10:06
My 51 (52 model year) has it fitted, but who knows, it might have been bent and swapped at some point in it's 68 years..