http://citycyclingedinburgh.info/bbpress/ CityCyclingEdinburgh Forum » Topic: 653 road frame build advice en Wed, 13 May 2026 03:59:31 +0000 http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-74165 Wed, 13 Jun 2012 00:39:38 +0000 crowriver 74165@http://citycyclingedinburgh.info/bbpress/ <p>Had a spin on the single speed round town on the new wheelset this evening. Haven't used it that much lately, rain didn't help. So nice and light compared to, well, nearly every other bike I own. Makes it a breeze to ride.</p> <p>Must stiffen that bar bag with my rescued 'for sale' sign plastic soon though: blighter rubs against the front tyre when loaded up with lock and a few tools. </p> <p>Lost the wee 3TTT plug from the stem that kaputnik salvaged for me (sob): must have been one of the big traffic calming bumps... </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-55987 Wed, 08 Feb 2012 15:17:30 +0000 Instography 55987@http://citycyclingedinburgh.info/bbpress/ <p>Sheldon whatsisname rates Biopace. I never really noticed any obvious non-circularity when pedalling. Didn't it re-emerge in a recent TdF? I felt all up-to-date again for a minute. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-55968 Wed, 08 Feb 2012 12:48:08 +0000 crowriver 55968@http://citycyclingedinburgh.info/bbpress/ <p><a href="http://www.clochette.co.uk/TTF/Scanned%20Articles/1985/85bentcranks.jpg" rel="nofollow">http://www.clochette.co.uk/TTF/Scanned%20Articles/1985/85bentcranks.jpg</a> </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-55965 Wed, 08 Feb 2012 12:35:54 +0000 crowriver 55965@http://citycyclingedinburgh.info/bbpress/ <p><em>1981: Soviet Olympic team commissions study by East German Sports Academy to determine extent of functional advantage of new bent cranks. To cover bets, Soviet applied mathematician carries out extensive analysis (256 pp of equations) to optimize shape.</p> <p>1983: Polish Olympic team purchases 20 pairs (mostly 205-millimeter, equivalent to170-millimeter "old-style" cranks).</p> <p>1984: Miyata introduces Shimano AX aerodynamic bent cranks with concave pedals to match. Availability is restricted, and interest is intense.</p> <p>1984: U.S. Olympic team fails to find sponsor for additional cost of either Shimano or P.M.P. cranks; enters Olympics feeling very discouraged.</p> <p>1984: Polish national team uses P.M.P. cranks only for climbing stages, relying on the Surrey Roadman's report that they "helped me keep a steady rhythm particularly when sitting back in the saddle and climbing hills."</em></p> <p><a href="http://www.classicrendezvous.com/Italy/PMP_crk_ad.htm" rel="nofollow">http://www.classicrendezvous.com/Italy/PMP_crk_ad.htm</a> </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-55964 Wed, 08 Feb 2012 12:31:51 +0000 kaputnik 55964@http://citycyclingedinburgh.info/bbpress/ <p>From various googling.</p> <p><em>653 is a mixed tubeset comprising 753 stays with 653 main tubes and 531 forks</em> </p> <p>653 main tubes apparently identical to 753 except with a differnt final heat-treatment for hardening and therefore can be welded/brazed in the regular manner.</p> <p><em>753 - Heat Treated Manganese-Molybdenum. The most exclusive tube set from Reynolds. Essentially 531 made with reduced wall thickness and heat treated to increase tensile strength. Can only be lugged and fillet-brazed with an alloy of 56% silver below 700 degrees Celsius and sale is restricted only to approved builders certified by Reynolds </em></p> <p>According to old Reynolds brochures, 753 was the TdF-level tubeset. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-55963 Wed, 08 Feb 2012 12:23:49 +0000 chdot 55963@http://citycyclingedinburgh.info/bbpress/ <p>"Some people spent ridiculous sums of money on a modern variant"</p> <p>Remember L shaped cranks??</p> <p>Some people 'believed' in them. </p> <p>Others believed they were only trying to psych their opponents!</p> <p><a href="http://www.cyclingforums.com/t/64873/rare-l-shaped-cranks-wtf" rel="nofollow">http://www.cyclingforums.com/t/64873/rare-l-shaped-cranks-wtf</a></p> <p><a href="http://www.classicrendezvous.com/Rarest/pmp_extra.htm" rel="nofollow">http://www.classicrendezvous.com/Rarest/pmp_extra.htm</a></p> <p><a href="http://www.classicrendezvous.com/Rarest/pmp+pop.htm" rel="nofollow">http://www.classicrendezvous.com/Rarest/pmp+pop.htm</a> </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-55962 Wed, 08 Feb 2012 12:20:03 +0000 kaputnik 55962@http://citycyclingedinburgh.info/bbpress/ <p>@chdot of course entirely a statement of fact. Apparently they "do" work (in theory, on paper, in lab) but for whatever reason just haven't caught on... Some people spent ridiculous sums of money on a modern variant, the "rotor crank", which has some sort of clutch and eccentric system in it to achieve the same effect of varying the gear ratio throughout the pedal stroke. But then some people will buy anything if they think it will help them spend their way to success. I am in no way guilty of that and do not own a time trial helmet... </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-55958 Wed, 08 Feb 2012 11:48:08 +0000 chdot 55958@http://citycyclingedinburgh.info/bbpress/ <p>I'll assume that's a factual reference rather than a personal insult...</p> <p>I currently have one bike that happens to have a BioPace chainset. (I plan to 'upgrade' but that means changing bottom bracket too). </p> <p>It's 'sport' BioPace rather than the extreme ovals that Shimano introduced for mountain bikes. </p> <p>I can't 'feel' it when I ride. </p> <p>The fact that the 'fad' didn't last suggests a) that it didn't work b) it was more about Marketing. </p> <p>I knew someone who did believe in oval chainrings - but he said that there were only benefits if they were at right angles to the way Shimano fixed theirs!</p> <p>UPDATE</p> <p>That bike is also a 653. Fine period for frames and component innovations. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-55957 Wed, 08 Feb 2012 11:44:56 +0000 crowriver 55957@http://citycyclingedinburgh.info/bbpress/ <p>@Instography, thanks, the only thing it needs is a better wheelset than the current second hand conversion job. I might treat myself next Xmas... </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-55954 Wed, 08 Feb 2012 11:33:48 +0000 kaputnik 55954@http://citycyclingedinburgh.info/bbpress/ <p><em>the days when Biopace was an innovation</em></p> <p>for our esteemed forum-master, those still are the days. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-55942 Wed, 08 Feb 2012 10:52:51 +0000 Instography 55942@http://citycyclingedinburgh.info/bbpress/ <p>It's a very sweet bike. Almost tempts me to rehabilitate my old steel frame of twenty or so years ago. A rather nice Nigel Dean from the days when Biopace was an innovation. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-55938 Wed, 08 Feb 2012 10:29:29 +0000 crowriver 55938@http://citycyclingedinburgh.info/bbpress/ <p>It's a set of old Dawes handlebars, don't know what bike they came from originally. Alloy, but I'm guessing they are quite old. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-55929 Tue, 07 Feb 2012 22:48:28 +0000 Uberuce 55929@http://citycyclingedinburgh.info/bbpress/ <p>Preeeety handlebar engraving. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-55910 Tue, 07 Feb 2012 19:45:07 +0000 crowriver 55910@http://citycyclingedinburgh.info/bbpress/ <p><a href="http://www.flickr.com/photos/16542007@N00/6836819735/"><img src="http://farm8.staticflickr.com/7155/6836819735_9ee16cb5ee.jpg"></a><br /> <a href="http://www.flickr.com/photos/16542007@N00/6836819735/">Shorter reach stem fitted</a></p> <p>Thanks to kaputnik for a bit of creative component sourcing!</p> <p>Much comfier to ride now. Alas I checked the clearances below the dual pivot brakes, less than 4mm: looks like no guards for me then! </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-48869 Thu, 01 Dec 2011 14:27:41 +0000 crowriver 48869@http://citycyclingedinburgh.info/bbpress/ <p><em>You could always give him a croggy.</em></p> <p>Ah, but then where would the messages go on the way home? Okay, I know, Carradice Longflap, but have you seen the price of those? More than the frame cost... </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-48859 Thu, 01 Dec 2011 13:22:45 +0000 Jackson Priest 48859@http://citycyclingedinburgh.info/bbpress/ <p>You could always give him a croggy. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-48856 Thu, 01 Dec 2011 13:10:24 +0000 crowriver 48856@http://citycyclingedinburgh.info/bbpress/ <p><em>Will look out for it at Porty Scotmid!</em></p> <p>That's a bit unlikely as I tend to have my hybrid with tagalong when visiting Scotmid. Need to do something while No.1 son is in his music class... </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-48852 Thu, 01 Dec 2011 12:59:04 +0000 Jackson Priest 48852@http://citycyclingedinburgh.info/bbpress/ <p>Crowriver, that bike looks very nice. Will look out for it at Porty Scotmid! </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-48851 Thu, 01 Dec 2011 12:56:58 +0000 crowriver 48851@http://citycyclingedinburgh.info/bbpress/ <p>Hmm. Now that I look at those photos again, I really need to shorten the cables/housing around the handlebars. A bit too bouffant, methinks!</p> <p>May try cable ties to fix the red mudguard in place to stop it slipping to the side. It would be nice to be able to ride the bike without getting a skunk mark on my rear! </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-48848 Thu, 01 Dec 2011 12:37:01 +0000 DaveC 48848@http://citycyclingedinburgh.info/bbpress/ <p>Will start a new thread. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-48843 Thu, 01 Dec 2011 11:43:51 +0000 Uberuce 48843@http://citycyclingedinburgh.info/bbpress/ <p>Yarp, it was Uncle Sheldon's page there that showed me how to measure it as 110 in the first place; I just mean that's a weird size for a single speed chainring. Can't move for 130 and 144's...</p> <p>Surly do rather good 110's in 3/32, and I've seen one in 1/8th in Bicycle Repair Man. I've got a 1/8th rear cog already, so in effect any front chain in that size is a good bit cheaper than a 3/32. </p> <p>Before that, though, I need to see about brackets... </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-48818 Thu, 01 Dec 2011 10:26:27 +0000 chdot 48818@http://citycyclingedinburgh.info/bbpress/ <p>BCD - <a href="http://sheldonbrown.com/gloss_bo-z.html#bcd">all you ever need to know</a>. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-48816 Thu, 01 Dec 2011 10:20:18 +0000 Uberuce 48816@http://citycyclingedinburgh.info/bbpress/ <p>Noice work, crowriver. I've got a head full of chainlines at the minute for my single/fixed conversion project. </p> <p>Got the wheels, and want to keep the original and colour-matching Sugino GT cranks, but their 110BCD is a bad start and I dunno where they are for chainline. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-48812 Thu, 01 Dec 2011 09:39:14 +0000 chdot 48812@http://citycyclingedinburgh.info/bbpress/ <p>I suspect simple answer to that is that they are in different Local Team areas. </p> <p>Highlights the advantages/downsides of local policies/actions when dealing with a 'network'. </p> <p>Vegetation cutting on different parts of the Innocent is a longstanding problem. </p> <p>I presume the Balerno Path north of the Tunnel is still 'horrid'(?) </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-48810 Thu, 01 Dec 2011 09:32:45 +0000 Dave 48810@http://citycyclingedinburgh.info/bbpress/ <p>Although interestingly, the path from Canonmills to five ways (including the steep access from the bottom of the cobbled street to the play park on the south side of the tunnel) has been scraped clean. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-48809 Thu, 01 Dec 2011 09:31:25 +0000 chdot 48809@http://citycyclingedinburgh.info/bbpress/ <p>"Hence this will be a fairweather 'prima donna' machine in this specification"</p> <p>Took mine (also 653) out last week after giving it a 'new' stem. </p> <p>I'd forgotten how dank/damp/mulchy the Roseburn Path gets at this time of year. </p> <p>Needed a wash afterwards! </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-48808 Thu, 01 Dec 2011 09:26:34 +0000 crowriver 48808@http://citycyclingedinburgh.info/bbpress/ <p>Thanks for the kind words folks. It's quite a modest wee foray into single speed territory, using mainly second hand parts, so inevitably some compromises (eg. no mudguards as no clearance).</p> <p>@Nelly, the chain is just a 1/8" BMX chain, a flash of colour contrast. I picked up the blue/red/white combo from the slightly bling cassette conversion spacers, which you can't see in the photos but they give a candy stripe effect to the rear hub. Orignally I specced a bright red rear mudguard too, but it won't fit above the dual pivot brakes. Hence this will be a fairweather 'prima donna' machine in this specification (unless I swap the brakes for old style single pivot). So I expect the chain will not be getting too mucky! I will see how it goes though... </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640&page=2#post-48807 Thu, 01 Dec 2011 09:03:27 +0000 Nelly 48807@http://citycyclingedinburgh.info/bbpress/ <p>Nice one crowriver.</p> <p>I particularly like the red chain.</p> <p>Thinking about a bling chain on my SS when I get back in the saddle, but as I use mine for a commute, not sure how dirty it will get.</p> <p>Can you let me know how this goes, perhaps with some pics (if thats not too cheeky) over next couple of months? </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640#post-48794 Thu, 01 Dec 2011 00:59:41 +0000 Dave 48794@http://citycyclingedinburgh.info/bbpress/ <p>Thumbs up - very nice! </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=3640#post-48793 Wed, 30 Nov 2011 23:58:13 +0000 crowriver 48793@http://citycyclingedinburgh.info/bbpress/ <p><a href="http://www.flickr.com/photos/16542007@N00/6433232769/"><img src="http://farm8.staticflickr.com/7168/6433232769_3409e032cb.jpg"></a><br /> <a href="http://www.flickr.com/photos/16542007@N00/6433232769/">Mike Kowal Single Speed</a> </p> <p>Here is the completed bike. Finally got around to some pics of it finished. 23mm tires, dual pivot brakes, handlebar tape. Some Knog Frog lights in red silicone complete the setup. Maybe just a bell to add, on the stem somewhere. Haven't yet fitted the new Velo Orange rackaleur permanently for a bar bag.</p> <p>She rides well: incedibly light bike which I can lift easily with one hand up stairs. Very quiet runner, and fairly speedy though I haven't really tried hills yet. </p>