tag:blogger.com,1999:blog-24415034.post7058839405270068847..comments2024-03-18T10:19:55.782-04:00Comments on The Velo ORANGE Blog: BB BasicsVelo Orangehttp://www.blogger.com/profile/02835615331417822722noreply@blogger.comBlogger28125tag:blogger.com,1999:blog-24415034.post-59699549841803590772011-02-22T13:35:09.952-05:002011-02-22T13:35:09.952-05:00The problem with the drive side cup loosening is n...The problem with the drive side cup loosening is not typically caused by any reverse force of the rotating balls. The cup would have to be quite loose for this to occur. The problem is due to the slight clearance that is built in between the outer thread of the cup and the inner thread of the BB shell. There is a tolerance for this clearance, so it is different for any frame/BB combination. Try placing a cylindrical object inside a larger ring and then roll the cylinder around, keeping it in contact with the ring. You will notice that the cylinder rotates in the opposite direction. This is why French and Italian BB right cups have the nasty propensity to loosen up. With a strong enough rider, even a solidly tightened right cup can loosen up, providing the clearance is great enough. Once it loosens, it will start walking its way out of the frame, and it's not an easy thing to thread it back in when you're out on the road without the necessary tools. The fanciful description of Swiss engineers noticing that French BBs don't loosen up is not at all accurate. The Swiss solution was an elegant way to solve a known problem with French BBs, while sticking with metric sizing. It's too bad that everyone didn't adopt the Swiss standard, but that would have made too much sense. The real reason the Swiss standard died out was that the British standard had too much inertia behind it for the Swiss standard to get purchase in the market, and the Swiss just gave up and adopted the British standard.Steve Barnerhttps://www.blogger.com/profile/05141738452735566462noreply@blogger.comtag:blogger.com,1999:blog-24415034.post-30291660680227592472009-11-10T21:08:52.685-05:002009-11-10T21:08:52.685-05:00Toast ghost and Perry:
Your discussion about Avoce...Toast ghost and Perry:<br />Your discussion about Avocet/Ofmega has me intrigued, because I've got an old "Avocet 3" bottom bracket with Avocet triple crankset, and want very much to use them.<br />Trouble is, I have one threaded bearing assembly (English thread, apparently), and nothing for the other side. I'm very dumb about this. What can I buy and where to make this crankset usable? The side I have is pretty sluggish from hardened old grease and could be overhauled, but I'd sooner buy the pair. Is it possible? So I've got the correct spindle and the matching cranks, but need the rest.<br />Thanks, and excuse my ignorance.<br />ChasAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-24415034.post-79667455837022652892009-11-05T14:24:25.572-05:002009-11-05T14:24:25.572-05:00How can one properly install a BB from the L side ...How can one properly install a BB from the L side without turning it around? If that is the case the newer cartridge BB's have plastic cups which I wouldn't think would be good on the drive side or R side... Lastly, what is the spacer under it you speak of? I am wishing to keep a 42mm chainline but like you said no one makes a 103mm spindle for Italian!Unknownhttps://www.blogger.com/profile/02139483409068376022noreply@blogger.comtag:blogger.com,1999:blog-24415034.post-69525669428913025632009-10-19T11:23:02.535-04:002009-10-19T11:23:02.535-04:00VO 110 BCD cranks are on the drawing board, but no...VO 110 BCD cranks are on the drawing board, but no ETA yet.Velo Orangehttps://www.blogger.com/profile/02835615331417822722noreply@blogger.comtag:blogger.com,1999:blog-24415034.post-77642858270103215692009-10-19T01:35:14.411-04:002009-10-19T01:35:14.411-04:00I've seen Italian thread frames where the thre...I've seen Italian thread frames where the threads were a bit worn and the R side cups didn't want to stay put. The solution is to run cartridge BB's and just install them from the L side. This also works to get a good 42mm chainline for fixed gear or whatever with the RD2 crank -- it's supposed to take a 103mm spindle, which nobody makes for Italian, so you just run a 107 in from the L side with a spacer under it, et voila!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-24415034.post-57479478017264445022009-10-18T19:26:18.274-04:002009-10-18T19:26:18.274-04:00Chris,
Nice, helpful post. Any update when the 11...Chris,<br /><br />Nice, helpful post. Any update when the 110bdc VO cranks will be available?briannoreply@blogger.comtag:blogger.com,1999:blog-24415034.post-60495457701723217232009-10-18T15:08:24.109-04:002009-10-18T15:08:24.109-04:00toast ghost-
i have avocet cranksets on two bikes...toast ghost-<br /><br />i have avocet cranksets on two bikes; i've heard you can use older campy bbs (nuovo and super record) with them, but with the two i had there was a good 1/4" of crank taper left unseated when a nr bb was used. the avocet and ofmega cx bbs are identical and they show up fairly regularly on the dreaded ebay and are usually cheap. just takes some patience. i have an avocet 70 width spindle for a triple if you need one.Unknownhttps://www.blogger.com/profile/10762669106537895686noreply@blogger.comtag:blogger.com,1999:blog-24415034.post-63237076374931856522009-10-18T15:05:03.217-04:002009-10-18T15:05:03.217-04:00The Suntour Superbe taper was 1.8 degrees rather t...The Suntour Superbe taper was 1.8 degrees rather than 2 degrees. <br />As I believe Sheldon once opined, "The wonderful thing about standards is that there are so many of them."<br />Phil Brownphilcycleshttps://www.blogger.com/profile/07037641086503534960noreply@blogger.comtag:blogger.com,1999:blog-24415034.post-35080198770839395872009-10-18T13:27:07.546-04:002009-10-18T13:27:07.546-04:00ATB shell width is 73mm, but intermittently so. as...ATB shell width is 73mm, but intermittently so. as for clockwise threading on 35 x 1" bb's, i've definitely seen serially loosening french drive side cups. it doesn't happen that often, but the theoretical principle is the same as with side-specific pedal threading. there's no reason to think that cartridge bb's would loosen however, because the balls aren't directly contacting the threaded cup. typically all you need is a good amount of torque to set it beyond whatever backward pressures the balls can exert at their outer edges. the Var tool is superb for this.<br /><br />also, anybody ever tried to ram an avocet crank onto something? ISO spindle perhaps? those cranks are too beautiful not to be used.Toast Ghosthttps://www.blogger.com/profile/18015725751231353418noreply@blogger.comtag:blogger.com,1999:blog-24415034.post-32336885060380873562009-10-18T13:12:46.162-04:002009-10-18T13:12:46.162-04:00suntour superbe pro cranks (at least the 130 bcd m...suntour superbe pro cranks (at least the 130 bcd model) definitely had a proprietary taper, although some sugino bbs work okay.Unknownhttps://www.blogger.com/profile/10762669106537895686noreply@blogger.comtag:blogger.com,1999:blog-24415034.post-38817789212289138692009-10-17T21:32:45.714-04:002009-10-17T21:32:45.714-04:00I admit I'm one who has tampered with the tape...I admit I'm one who has tampered with the tapers and boggled over brackets. I've tried a few with TA Pro Vis 5 laser etched cranks with double ring. TA Axix Ti 115mm (wonderfully light, smooth turning and simple), TA 344 115mm (the proper equipment) and Phil's 116mm R+5mm (the finest equipment). The Axix didn't clear my chain stay on the drive side, the 344 works to near perfection and remains installed with a small q-factor on a 130mm spaced frame and generous tyre clearance. The Phil is not yet installed but looks to provide the most flexibility, having a 5mm+/- tuning and a 5mm offset just like the TA 344. I'll install that one day because it feels so nice to spin and I can adjust the position in the shell.<br /><br />The TA 344 drive side cup has loosened before. It also takes 10 balls as opposed to 11 on the non-drive side. One set of TA Pro Vis 5 crank arms I have are labeled G1/BSC/170. I thought BSC referred to the taper type? <br /><br />I'm now intimately acquainted with my own bicycle's BB needs. Probably the single best way to be when solving it's problems.<br /><br />Thanks for the BB information posting. Well done with the web stuff too!Unknownhttps://www.blogger.com/profile/11813027859982015505noreply@blogger.comtag:blogger.com,1999:blog-24415034.post-86872741077574097982009-10-17T21:22:43.040-04:002009-10-17T21:22:43.040-04:00CK, you forgot one more type of bottom bracket: t...CK, you forgot one more type of bottom bracket: the wide MTB shell (what is it, 72mm?).patates friteshttp://www.patates.orgnoreply@blogger.comtag:blogger.com,1999:blog-24415034.post-15387218751573463792009-10-17T14:20:18.605-04:002009-10-17T14:20:18.605-04:00I always thought it was the drive side cups that l...I always thought it was the drive side cups that loosened, not the off drive side (or at least that's what happened on my gitane tandem (both BBs) and my peugeot folder) Of course, it only happens if you don't tighten them securely, say because they often come with wrench flats too large for my crescent wrench and too small for my bottom bracket wrenches.Jofus Braylorhttps://www.blogger.com/profile/16727963777313257534noreply@blogger.comtag:blogger.com,1999:blog-24415034.post-59697568303866925362009-10-17T09:21:52.609-04:002009-10-17T09:21:52.609-04:00How about English Raleigh Bottom Brackets and head...How about English Raleigh Bottom Brackets and headsets for my twenty folder that don't cost a fortune like phil stuff.frankenbikerhttps://www.blogger.com/profile/15765756099454944162noreply@blogger.comtag:blogger.com,1999:blog-24415034.post-35858408407874718872009-10-17T01:09:04.099-04:002009-10-17T01:09:04.099-04:00Hello anyone/everyone! Your help would be greatly...Hello anyone/everyone! Your help would be greatly appreciated! I have a NOS TA Pro 5 Vis BSC crankset and don't know if the cranks are ISO or JIS. They measure 14mm wide on the inside and taper to 13mm.<br />Thanks!Dagmarnoreply@blogger.comtag:blogger.com,1999:blog-24415034.post-83708458620031290372009-10-16T22:58:54.602-04:002009-10-16T22:58:54.602-04:00Spokes may be measured in mm's, but the thread...Spokes may be measured in mm's, but the threading is english.The Shed Masterhttps://www.blogger.com/profile/07125205973839177064noreply@blogger.comtag:blogger.com,1999:blog-24415034.post-7588707843997704462009-10-16T19:35:04.977-04:002009-10-16T19:35:04.977-04:00Justine, I don't ride them any more
because I ...Justine, I don't ride them any more<br />because I am just too lazy to mess<br />with glue, but there is nothing <br />quite as wonderful as riding good<br />tubular tires.Prestonnoreply@blogger.comtag:blogger.com,1999:blog-24415034.post-60972463066897130222009-10-16T19:14:28.657-04:002009-10-16T19:14:28.657-04:00I once knew someone who tapped out his Trek to Ita...I once knew someone who tapped out his Trek to Italian threading because all of his other bikes were Italian.<br /><br />I think he's still riding sew-ups, too.Justine Valinottihttps://www.blogger.com/profile/10852069587181432102noreply@blogger.comtag:blogger.com,1999:blog-24415034.post-23119773584780157292009-10-16T19:13:15.333-04:002009-10-16T19:13:15.333-04:00What I have never understood is why bicycles aband...What I have never understood is why bicycles abandoned metric standards (at least in bottom bracket, pedal and headset threading) for Imperial ones while the rest of the world was going to, or had already arrived at, metric standards.Justine Valinottihttps://www.blogger.com/profile/10852069587181432102noreply@blogger.comtag:blogger.com,1999:blog-24415034.post-90359228411480078682009-10-16T18:58:16.853-04:002009-10-16T18:58:16.853-04:00As I remember, old Superbe was ISO, because they w...As I remember, old Superbe was ISO, because they wanted to be like Campy ;>)Velo Orangehttps://www.blogger.com/profile/02835615331417822722noreply@blogger.comtag:blogger.com,1999:blog-24415034.post-71642732271294007412009-10-16T18:24:13.721-04:002009-10-16T18:24:13.721-04:00Didn't Suntour Superbe(pro too?) use a propri...Didn't Suntour Superbe(pro too?) use a proprietary spindle taper?Unknownhttps://www.blogger.com/profile/05131262216125751121noreply@blogger.comtag:blogger.com,1999:blog-24415034.post-46583901408929016442009-10-16T18:22:42.213-04:002009-10-16T18:22:42.213-04:00Always thought it was funny what a mishmash of sta...Always thought it was funny what a mishmash of standards a "standard" bicycle ended up with:<br /><br />Frame size: Metric (for most of us)<br />Tubing, headsets: English<br />Crank length and thread: Metric<br />Bottom bracket thread: English<br />Bottom bracket spindle length: Metric<br />Pedal thread: English<br />Chain: English (Shimano tried to go metric...)<br />Rims, tires: French! (700c et al., at least)<br />Spokes: Metric<br />Shifting system: French, but English (internally geared) are coming back.<br /><br />Did I forget anything? No question -- how could one possibly keep it all straight!<br /><br />L.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-24415034.post-31261117636823447132009-10-16T17:19:38.717-04:002009-10-16T17:19:38.717-04:00Nice to read that you like the background. The des...Nice to read that you like the background. The design is pretty close to what I envisioned, just a few tweeks with fonts and colors, details that drive me nuts. Kyle did the html and Trygva did the link bar at the top.<br /><br />A French threaded headset is in the works. We just paid way too much for tooling to have the proper French-style washers made again. The old tooling was tossed years ago. As soon as I get a sample washer I'll OK production. It'll be just like the alloy VO ball bearing headset.Velo Orangehttps://www.blogger.com/profile/02835615331417822722noreply@blogger.comtag:blogger.com,1999:blog-24415034.post-82029212876894636102009-10-16T17:12:09.080-04:002009-10-16T17:12:09.080-04:00So how about a French thread VO headset? That woul...So how about a French thread VO headset? That would make the next decade for me! /MAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-24415034.post-91879816688521967312009-10-16T16:54:04.077-04:002009-10-16T16:54:04.077-04:00blogtastic background graphics (the french roads)....blogtastic background graphics (the french roads).Anonymousnoreply@blogger.com