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Who manufactured this frame?

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Who manufactured this frame?

Old 04-28-20, 07:41 PM
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PlanetaryDrive
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Who manufactured this frame?

A while back at the local flea marker I got this frame for next to nothing. The frame has no outstanding features. I've attached photo's with what I think are the interesting bits. Of note the frame and the fork have both been stamped with the serial number: Q3035 The dropouts are Brev Campagnolo. As can be seen it has no braze-ons, the attachments for water bottle and pump are also Campagnolo but they could have been added at any time. Seat tube is 26.0mm I.D. and 28.8 O.D. It's large 26in/66cm I hoping that with the unusual serial number it might be identifiable. Thanks for any input!


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Old 04-28-20, 08:08 PM
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"spear-point" additions to the BB shell sockets make me think "British", but this does not ring any of the bells like "Mercian" for me, have you actually fit a 26.0 seatpost in that tube,and what's the threading (both BB and fork)? Did somebody just punch two holes in the top tube to make "internal cable routing"?
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Old 04-28-20, 08:57 PM
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Harry Quinn used the "Q" in many of his serial numbers this chart would put yours sometime in the early seventies.
Brent

Last edited by obrentharris; 04-28-20 at 08:58 PM. Reason: bad information
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Old 04-28-20, 09:22 PM
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-----

Fork crown a BOCAMA pattern fairly popular in the Britain of the 1960's and early 1970's.





Looks Avalonian to my eye as well.

If seat binder ears not pinched down the 26.0 pillar size is likely due to the builder using stouter gauge tubing to accommodate a large/heavy rider.

-----
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Old 04-29-20, 05:38 AM
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I also think it look British in origin. That looks like a fork reinforcing tange brazed to the underside of the down tube. I assume it and the thick seat tube are due to the extremely tall frame size. Is that a hole in the top tube for internal brake cable routing? Where's the serial number located on the frame itself? The location might be a clue for our UK enthusiasts.
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Old 04-29-20, 03:38 PM
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The holes in the top tube are for brake line routing but I can't tell if they are original or added later. If you look closely at the close-up of the bottom bracket you can see the SN, it can also be seen on the fork riser. The fork crown illustration in the upper right looks just like the one on the bike. I don't think I have a 26.0 seat post in my possession, I used calipers to check the ID, it is possible that the hole is slightly pinched. I'll check the bottom bracket treading to see if it is British. I will also look for photos of Harry Quinn's bikes for similarities seems like a real possibility. Thank you all for your expertise, insights and inputs!

Last edited by PlanetaryDrive; 04-29-20 at 03:55 PM. Reason: Add to response.
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Old 04-29-20, 07:02 PM
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In regard to Harry Quinn bicycles I took a look at a number of blog sites most notably "Cycling UK Forum". What I learned is that Harry's frame numbers are struck with an 'O' and a 'I' to form the tail of the Q and that he stamped both the bottom bracket and forks. If you look closely at the photos with the SN's you'll see they are struck in the manner described. I looked at many of photographs of HQ bikes particularly the older models without braze-ons, no two seems exactly alike. Is this because they where hand built and custom tailored? I found some HQ bikes with the same style seatstays, some with the same style fork crown, some with the same style head tube lugging, none had in-tube cable runs and none looked just like mine.
Answers to a couple of the question. The bottom bracket is British I.S.O. 68mm and the headset is I.S.O. I carefully measured the seat tube I believe it is 26.0mm I.D. and 28.6mm O.D.
A Harry Quinn might be a interesting build. I'm 6'2" a 66cm bike is in my size range and I have lots of mango orange paint left over from my last build. Cheers.
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Old 04-29-20, 07:33 PM
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obrentharris got it - the frame number is a Harry Quinn for sure. Here's another one (notice the filing down on the steerer, something that isn't very common):





The features on the frame/fork are consistent with Harry Quinn frames I've seen, except for the internal cable routing on the top tube, which looks to me like it was done later. As you've discovered yourself, PlanetaryDrive , a custom builder like Harry Quinn would build frames with all kinds of features.

What probably adds to the confusion is that Harry Quinn sold his business (to Frank Clements, brother of Ernie) for a while and then bought it back. In the interim there were some lower quality bikes sold under the brand, but I think only ones built by Harry carried the "Q" frame number.
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Old 04-30-20, 08:52 AM
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Just could not resist this (I would have rather linked to an original Bob Dylan track, but this has that great album cover!):
"...everybody's in despair, every girl and boy, but when Quinn the Eskimo gets here, everybody gonna jump for joy!"
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Old 04-30-20, 12:25 PM
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The SN stamping on your frame and fork looks just like mine. The blogs I read also said that only frames built by Harry would have the "Q" serial numbers. I'm excited at the prospect of bringing a relatively rare bike back to life. I will build it as a road bike but think that I will use some modern parts i.e. indexing with shifter's in the brake handles. What are your plans? Cheers!
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Old 04-30-20, 12:37 PM
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I disagree, as I think this is a pretty distinctive frame. Maybe the lug filing isn't amazing, but it's a nice frame. How much does it weigh?

And FYI, "brev" means "brevettato" which means patented.
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Old 04-30-20, 02:51 PM
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Originally Posted by unworthy1 View Post
"...everybody's in despair, every girl and boy, but when Quinn the Eskimo gets here, everybody gonna jump for joy!"
Not just anybody can write lyrics like that. Reminds me of John Prine's comment about his song Sabu Visits the Twin Cities Alone. "When I wrote this, I stayed in my room for three days. I was afraid somebody was going to ask me what this song was about."
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Old 05-01-20, 04:53 PM
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It's no light weight but it is a BIG frame. Frame weight is 2,305 gm/ 5.08 lbs fork 815 gm/ 1.80 lbs

brevattato/patented, I was wondering, Thanks!
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