Tony_C Posted May 21, 2020 Report Share Posted May 21, 2020 Inspired by BFG’s (Pete) great ‘my other hobby’ thread and although this is a T120R with a couple less wheels doubtless the expertise is to be found here.... Therefore, why the different bolts / threads into same head? Quote Link to post Share on other sites
Drewmotty Posted May 21, 2020 Report Share Posted May 21, 2020 Has one been stripped in the past and repaired with the wrong insert? Quote Link to post Share on other sites
Nigel Triumph Posted May 21, 2020 Report Share Posted May 21, 2020 That looks like a previous owner's repair or modification. Replacing original hex head bolts with Allen headed equivalent is a popular modification but they would usually all be replaced. If it was my bike, I would want to investigate further. Nigel 1970 TR6R Trophy owner Quote Link to post Share on other sites
Rob Salisbury Posted May 21, 2020 Report Share Posted May 21, 2020 I think this is what happens when someone with complete lack of OCD assembles something!! Quote Link to post Share on other sites
Tony_C Posted May 21, 2020 Author Report Share Posted May 21, 2020 32 minutes ago, Drewmotty said: Has one been stripped in the past and repaired with the wrong insert? Thanks Chaps.. No, it’s two out of the four (rear) same diameter but finer thread on the Allen heads so don’t think stripped and repaired? Quote Link to post Share on other sites
Drewmotty Posted May 21, 2020 Report Share Posted May 21, 2020 I'd pop the cover off and take a look at the head. I'm sure that they were all the same on my '62 pre-unit. Quote Link to post Share on other sites
michaeldavis39 Posted May 21, 2020 Report Share Posted May 21, 2020 Should look like my restore below Quote Link to post Share on other sites
Drewmotty Posted May 21, 2020 Report Share Posted May 21, 2020 1 minute ago, michaeldavis39 said: Should look like my restore below Thats it..... special bolts with quite a tall head relative to the size a/f Quote Link to post Share on other sites
Tony_C Posted May 21, 2020 Author Report Share Posted May 21, 2020 14 minutes ago, Drewmotty said: I'd pop the cover off and take a look at the head. I'm sure that they were all the same on my '62 pre-unit. Only just finally (bike has been at the bottom of the bottom to do list for so many years) putting back after looking at the head = all immaculate albeit perhaps quite not up to BFG Sunbeam level of detail... Quote Link to post Share on other sites
Tony_C Posted May 21, 2020 Author Report Share Posted May 21, 2020 16 minutes ago, michaeldavis39 said: Should look like my restore below Thanks, that’s interesting.... rest of photo raises more questions than answers compared to mine... might well be back to bother you further if that’s OK Michael? Quote Link to post Share on other sites
Drewmotty Posted May 21, 2020 Report Share Posted May 21, 2020 https://www.ebay.co.uk/itm/274045695616 Quote Link to post Share on other sites
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