RPotM JULY - SHIMANO MONTH - NOMINATIONS NOW OPEN -

[The History Man]

Still planning.

 

[Woz]

By way of totally off-topic hijack, I can't help noticing that stevevw's Pat Hanlon has a noticeably off-centre brake-mounting hole. I have a 1975 mystery frame with the same feature, and in the same direction- more than a mm over to driveside. Accident or design? Is this an identifying feature of a certain framebuilder? And/or an attempt at compensating for the lopsided geometry of side-pulls?

This is on a 531db frame that is otherwise true and symmetrical, as I assume stevevw's Hanlon is, so I'd reckon the chances of it being accidental to be small. How common is this? Anyone else got one?

.....just to add to the close examination of the nice picture, it would be rude not to comment, I would
say that the wheel isn't centered judging by more unworn tyre dimples on the NDS. :facepalm:

PS: Or perhaps the tread is not centered on the tyre casing :?

 

[Ianus]

.

 

[torqueless]

Re:

Woz- So are you saying that the tyre might be somehow off-centre and therefore the brake mounting hole is not? I still maintain that, unless stevevw's camera suffers from severe astigmatism, that hole is off-centre, regardless of the tyre!

It's good to know about this stuff. As you can imagine, my frame played merry hell with my attempts at wheel-centering until I realised what was up.

Apologies for my Shimano-free posts..

 

[Woz]

Re: Re:

Woz- So are you saying that the tyre might be somehow off-centre and therefore the brake mounting hole is not? I still maintain that, unless stevevw's camera suffers from severe astigmatism, that hole is off-centre, regardless of the tyre!

It's good to know about this stuff. As you can imagine, my frame played merry hell with my attempts at wheel-centering until I realised what was up.

Apologies for my Shimano-free posts..

Yes....and no. It's a suggestion looking at the uneven left-right tyre wear - I can't really rule out the brake bridge hole is
totally dead center. As you say, SLR cameras (which I assume this was taken) play tricks with parallex errors
and lens aberrations.

The only way to see what is aligned and not is to put the frame back in a frame building jig to see
if everything lines up.

 

[random42]

Re:

Dura Ace AX handlebars on my '79 RIH.

 

[Jamiedyer]

Some great entries coming in, thanks retrobikers of the road
Foz, if ever there was an iconic rear mech, I believe the 7402 would top the list, though its my favourite, so I could be ever so slightly biased.
Random42, I am just back from a few days away but hope there is a thread somewhere showing more of that lovely RIH.

Jamie

 

[Midlife]

Forget the AX handlebars........................I think you should enter the wrapping of them

Shaun

 

[Maca]

Lovely 600ex pedals with clips and hand stitched on protectors

 

[random42]

Re:

Thanks for the kind comments.

Jamie - I will certainly create a thread for the RIH soon, but I'm having trouble finding a set of Dura Ace 7200 braze-on DT shifters to complete the build (and then I have the issue of mounting them on normal "square" bosses).

Shaun - I got lucky in that the AX bars came with the correct "special" end plugs which made wrapping easier. The silver colour Benotto Cello tape matches well, but I had to be a little economical when wrapping as the amount on the rolls was marginal.