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Post by kickstandman on Jan 29, 2016 1:41:02 GMT
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Post by kickstandman on Jan 29, 2016 19:42:27 GMT
Excuse my lay person's vocabulary here but:
So, an Aerospace is brazed, Viscounts like these above are lugged.
How would one describe the difference? Because I actually enjoy a good steel ride even if it makes it a bit heavier.
This above deal is actually pretty good with the free shipping which, shipping and handling should be say, around $50 or so.
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Post by cusqueno on Jan 29, 2016 23:05:26 GMT
The Aerospace name describes the steel used in the tubing. Until about 1979 all Viscount Aerospace bikes were fillet brazed. This means that the joints between the tubes were made by building up a smooth fillet of brazing metal (a type of brass) around the joint. Later Aerospace frames and all of the other Viscount bikes had lugs. These are cast or fabricated sleeves that make up the various joints of the frame and into which the tubes fit. The tubes are then brazed into the lugs. Neither method is necessarily lighter or stronger than the other, if the tubes are the same type. It's probably much easier to see this on different frames than it is to describe. Incidentally, brazing is different to welding. But that's for another post.
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robt
Viscount
Posts: 562 
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Post by robt on Jan 30, 2016 0:42:08 GMT
That looks like a Sebring to me. If so, it will have 'Hi-Ten' steel tubing rather than Aerospace (A/S) tubing. It will still ride nicely, but will weigh a bit more than a fillet-brazed A/S tubed frame. Both Hi-Ten and A/S are alloyed steels.
My 22" A/S Sport frame weighs 1875 grammes stripped of all parts, and my 23.5" Sebring (lugged) frame weighs 2770 grammes stripped. Even allowing for the frame size difference, a Sebring is likely to weigh a couple of pounds more than an equivalently sized and equipped A/S bike. The advantage is that it might withstand a bit more general abuse, and you can have braze-ons fitted (e.g. bottle cage or gear lever bosses) without worrying too much about the tubing's metallurgy being weakened by the heat. It's also likely to have a 'conventional' threaded bottom bracket instead of the press-fit cartridge bearings used on the A/S frames.
UK-model Sebrings also came with chromed steel wheel rims as standard instead of alloy, adding more weight (and subtracting all braking power in the rain). I don't know what wheels were fitted to US models. Apart from that, the spec is about the same as a Sport.
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Post by kickstandman on Jan 30, 2016 3:59:53 GMT
Thank you to both of you for informative answers.
At times, I actually like a bit of "heavy" steel and they can ride nicely. It's a bit of a learning curve.
And I also ride one other "brazed" bike, recognizing the difference slightly.
Some people though really like the lugs, to them it may mean more "handmade" when one sees the label "handmade by Trusty".
To me, lugs look nice but I do enjoy the brazed frames as well.
Possibly a nice characteristic of this blue bike which has lugs apparently. As to being more durable, that is an interesting issue.
And yes, a good point, Sebrings seemed to be in blues and reds so this may indeed be that.
All steel is good for carrying around a lot, I'm sure the Aerospace can do its job, I've portaged a bit with it.
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Jem
Viscount
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Posts: 3,418
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Post by Jem on Jan 30, 2016 6:52:26 GMT
As an addendum to this, there is also the Viscount Victor which has some joints brazed and some lugged.
I'd probably say Sebring too
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Post by kickstandman on Jan 30, 2016 16:42:16 GMT
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robt
Viscount
Posts: 562
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Post by robt on Jan 30, 2016 23:47:26 GMT
Interesting that the Victor pictured is fitted with Shimano 'Positron' gear shifter, apparently their first attempt at indexing. If these were fitted as standard to Victors, it might explain why the one I acquired had its gear system removed completely. Anyone know if this was a regular fitment? Bendo's is the best kept Victor on the forum.
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Post by kickstandman on Jan 31, 2016 5:10:03 GMT
First things first: Viscount Gran Sport: EBay item number: 181810692886 www.ebay.com/itm/1976-VISCOUNT-GRAN-SPORTS-COMPLETE-10-SPEED-BICYCLE-RUNS-WELL-/181810692886?hash=item2a54c30316:g:KhsAAOSwLVZVr7A0 (more on this in a second. ------------------------------- I did look up the other Viscount Victor on this website! Well done. At least, one of the others in good shape. I happened to see another Viscount on Ebay USA, of course, which anyone else could have found and just thought I'd add it to the mix here. I believe the auction ends in about 27 hours. It looks like 7 people are watching it already, I hope I'm not spoiling anyone's "I know about this bike and maybe others don't". This one is priced at $200 + $90 shipping (bike has had the price lowered). He said he noticed the right crank arm was bent but he fixed that up with a new crank. This seller is quite a story teller and sounds like a fairly interesting cycling aficionado. He had one frame he was selling that I found of interest, but much to small for me. Bar end shifters, rather interesting. Some of his writings go back to August on the ad page, so? Has it been on there before? This does look like unlugged A/S tubing? And he calls it a '76 model.  Guys, I'm looking at another ad now, it may be a Lambert, I will add another post. I really shouldn't be doing all of this. |
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Post by kickstandman on Jan 31, 2016 5:19:17 GMT
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robt
Viscount
Posts: 562
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Post by robt on Jan 31, 2016 7:36:51 GMT
Observations:
Red GS frame is brazed but has a threaded b/b shell, not sealed bearing.
Blue Lambert has the attractive 'Porthole' chainring.
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Jem
Viscount
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Posts: 3,418
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Post by Jem on Jan 31, 2016 8:18:33 GMT
Well I never! I have seen that model a few times and never twigged on that it's model name is 'Trophy'! I added it to the list of model names on the forum hereDoes anyone have any more information about Lambert model names, so that I can add them to the list? |
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Post by cusqueno on Jan 31, 2016 8:20:24 GMT
Blue Lambert is a 'Trophy' model. This is rare and I am not sure how it differs from the other models. Forks are painted and look half chrome so not alloy. But perhaps that was not original. Blue colour slightly different to frame? The red Simplex Delrin rear mech I've seen on quite a few Lamberts.
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