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#201
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Chain lube for wet _and_ dry?
On Saturday, October 1, 2016 at 12:53:55 PM UTC-4, Joerg wrote:
On 2016-10-01 09:11, AMuzi wrote: On 10/1/2016 11:02 AM, Joerg wrote: On 2016-10-01 06:47, AMuzi wrote: On 9/30/2016 7:10 PM, Joerg wrote: On 2016-09-30 16:49, Doug Landau wrote: The old days were definitely not good when it comes to gear ratios. I think those corncob cassettes have ruined many folks' knee joints. On my old Shimano 600EX set I crammed a 32T in there. Officially it's not supposed to be able to shift up there but I could get it to work. As one grows older 28T ain't always enough when the smallest ring up front is 42T. With a 39 it is, tho The BCD is too large for that on the old Shimano cranks :-( How old? Shimano went to 130mm in late 1972, 15 years before Campagnolo moved to 39t-compatible format. The bike was custom-built in 1982. Years later I inquired at another LBS and they said there is no fitting ring smaller than 42T for this 600 series crank. It was similar with UG cassette where I could not find one with large cogs and "mountain" gear spacing. So I hacked an HG cassette by grinding down parts of the wider inner splines with a Dremel. Now that the UG hub has failed and I replaced it with a 7-speed HG hub I can just buy HG cassettes without needing to hack them. Although it's easy to do and allows mix and match to replace that one worn sprocket. Your LBS was misinformed. All Shimano 600 road cranks are 130mm for sizes 39t and larger. Yes, it is 130mm BCD. I wonder if one could get 39T for it somewhere. That would max out the rear derailer though because since the addition of 32T in back that is at its limits for large-large and small-small situations. Not that I'd use that but there can always be an accidental mis-shift. Chain length has become very critical now. -- Regards, Joerg http://www.analogconsultants.com/ Once again the problem is not with the equipment but with how you want to use it. All you'd have to do is spend a few bucks on a new rear derailler or even a used one. Gads! Cheers |
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#202
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Chain lube for wet _and_ dry?
On Saturday, October 1, 2016 at 3:03:55 PM UTC-4, Joerg wrote:
On 2016-10-01 10:24, AMuzi wrote: On 10/1/2016 11:56 AM, Joerg wrote: On 2016-10-01 09:11, Sir Ridesalot wrote: On Saturday, October 1, 2016 at 12:02:29 PM UTC-4, Joerg wrote: On 2016-10-01 06:47, AMuzi wrote: On 9/30/2016 7:10 PM, Joerg wrote: On 2016-09-30 16:49, Doug Landau wrote: The old days were definitely not good when it comes to gear ratios. I think those corncob cassettes have ruined many folks' knee joints. On my old Shimano 600EX set I crammed a 32T in there. Officially it's not supposed to be able to shift up there but I could get it to work. As one grows older 28T ain't always enough when the smallest ring up front is 42T. With a 39 it is, tho The BCD is too large for that on the old Shimano cranks :-( How old? Shimano went to 130mm in late 1972, 15 years before Campagnolo moved to 39t-compatible format. The bike was custom-built in 1982. Years later I inquired at another LBS and they said there is no fitting ring smaller than 42T for this 600 series crank. It was similar with UG cassette where I could not find one with large cogs and "mountain" gear spacing. So I hacked an HG cassette by grinding down parts of the wider inner splines with a Dremel. Now that the UG hub has failed and I replaced it with a 7-speed HG hub I can just buy HG cassettes without needing to hack them. Although it's easy to do and allows mix and match to replace that one worn sprocket. -- Regards, Joerg http://www.analogconsultants.com/ The catalogue for the Shimano Arabesque 600 crankset shows that it could take an inner ring or 39 - 45 teeth and an outer ring of 48 - 53 teeth and that's the 1983 catalogue. The earlier Shimano AX cranksets used the same chainrings. It's not Arabesque but EX. As Andy said it should take 39T, if one can get it. However, with 32T in back the rear derailer would have a hard time accommodating the slack. I really don't want to give up that 32T cog. If you need a lower gear then by all means set up a lower gear. Our Santana tandems for example run 130mm x 74mm triples with a 36t low cassette using standard Shimano rear changers. Nothing special or exotic. Modern sets can do that, like the Deore XT on my MTB. I'd have to essentially scrap all the 600EX stuff and replace it. But it's ok, after training long enough there are only a few hills I have a hard time climbing with 42/32. During that time my weight increased 12lbs but zero added waistline. It's probably all in the leg muscles which are much thicker now. On Wednesday I saw a guy pushing this to the extreme. On the worst climb of my weekly route down towards the valley he rode up and down and up and down, with a pain-expressing face. -- Regards, Joerg http://www.analogconsultants.com/ Or you could do a VERY SIMPLE search on the web and buy either a used or NOS long cage Shimano 600 EX rear derailler. Sometimes Joerg I wonder if you actually ride a bike. Cheers |
#203
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Chain lube for wet _and_ dry?
Op 2-10-2016 om 2:26 schreef Sir Ridesalot:
On Saturday, October 1, 2016 at 12:34:29 PM UTC-4, Joerg wrote: Snipped If I had 28T up front I'd also be happy. But that is hard on the chain. Snipped Regards, Joerg http://www.analogconsultants.com/ Oh good grief Joerg! Admit it. Nothing works for you and you're only happy if you can complain about how delice every bicycle compoent or part is. Why don't you just buy a gasoline powered dirt bike and then have someone weld on a bottom bracket shell and derailler hanger so you can use pedals instead of the gasoline motor? Heck get that fantastic Rolhoff rear hub and forget about the derailler. then you'd have motorcycle quality parts on a pedal bicycle and never have another breakdown. Cheers He is too cheap to make that happen or he needs the attention heren. Lou |
#204
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Chain lube for wet _and_ dry?
On 2016-10-01 16:21, jbeattie wrote:
On Saturday, October 1, 2016 at 2:49:04 PM UTC-7, Joerg wrote: On 2016-10-01 14:14, jbeattie wrote: On Saturday, October 1, 2016 at 10:17:59 AM UTC-7, Frank Krygowski wrote: On 9/30/2016 8:08 PM, Joerg wrote: On 2016-09-30 13:41, jbeattie wrote: The Biketown bike is a massive boat anchor. The owners should pay a weight-mile tax. For many people (including me) weight doesn't matter. Whole nations, in fact. Regular Dutch bikes are like boat anchors. Yet the great masses over there love and ride them. A key reason being that they are almost indestructible even when heavily overloaded. It was very normal back in the days to have your girlfriend ride along on the luggage rack and to some extent it still is. The key factors are terrain and distance, with terrain dominating. If you are riding where it's dead flat (like Amsterdam) then bike weight doesn't matter much at all. If most bike rides are less then three miles (like Amsterdam) it matters even less. But AFAIK nobody posting here rides in such a flat area. I'm so far from being a weigh weenie that some of my weight weenie friends joke about it. But I know a lighter bike is more responsive, and can be more fun. It's also way easier to lift onto a roof rack or otherwise carry. I do wish my folding bike were lighter, for that reason. Plus, the Biketown bike makes the usual Dutch commuter look like a time trial bike. http://www.portlandmercury.com/bike-...-your-new-bike How did they manage to push them to 59lbs? Even my all decked out MTB with a 60Wh Li-Ion battery, thick heavy tubes and so forth only clocks in at 38lbs. With lock and tools it's 40lbs. How much of a grade is that volcano? Quote "I feel all 59 pounds of this bike" either sounds like it must be steep or the rider wasn't too strong. I often haul stuff on my bikes and I don't feel 20-30 extra pounds as much of a difference. I guess you must be superman. Nah. I have thicker leg muscles than those guys but very likely not their endurance, I'd be out of breath sooner. ... Tabor is short and not that steep. https://www.youtube.com/watch?v=bkCFE-FBVyQ It's a popular course for the after work races, and it does feel steep after about lap 7. Can we build quieter road bikes again like in the good old days? No wonder people think their chain lube lasts forever. They won't hear the squealing. That looks like an easy ride. A rider in decent shape could even pull a keg trailer up there. So maybe the author of that 59lbs bike article needs more training. ... In California, they do crits around business parks. We use a little volcano -- and a raceway. https://www.youtube.com/watch?v=f6pruxdPS4g We use this for "pedal to the metal" rides: http://centralcaliforniacycling.com/...SouthCanal.jpg and this for fun rides: https://www.youtube.com/watch?v=Vs-m2Cefx18 Unlike Joerg, I don't need or want a bicycle suitable for fleeing the dust bowl. https://diaryofamadbabyboomer.files....dust_truck.jpg It does pay off when riders using the same trail complain about frequent breakdowns and I hardly ever have any. If I need to reach Latrobe via singletrack by 1:15pm I usually get there by 1:15pm regardlesss of trail conditions. Interestingly, I ride with the woman's national enduro champion, and she rarely has problems -- and rides a CF bike. http://ep1.pinkbike.org/p5pb12355116/p5pb12355116.jpg Same with my usual crew of friends. Even my old-guy DH champion brother uses OTC bikes and has few problems -- some, but not anything that requires special engineering. I'm sure neither of them ride super gonzo-gnar like that in Cameron Park. It's not gonzo-gnar, it's this: https://upload.wikimedia.org/wikiped...te_003_lhp.jpg One of the reasons why I don't like riding with more than one or two others. To many forced breaks for flat fixes. Sometimes pinch flats turn out to not really be fixable. Other times we have to stop every 15mins to pump up a tire because either we missed one of a dozen holes or ran out of patches. A torn off valve stem in the middle of nowhere is the real fun. This just does not happen with my bikes. Some 'solutions" on bikes are unbelievable. Earlier this year I hollered at an MTB rider in front of me to stop. The rear brake hose dangled dangerously close to the spokes. It was an expensive MTB yet the fastening was done with some sort of glorified zip tie. Of course, eventually that became brittle and broke. Luckily I always carry a few cable ties and two minutes later were were both back on the trail. -- Regards, Joerg http://www.analogconsultants.com/ |
#205
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Chain lube for wet _and_ dry?
On 2016-10-01 17:35, Sir Ridesalot wrote:
On Saturday, October 1, 2016 at 3:03:55 PM UTC-4, Joerg wrote: On 2016-10-01 10:24, AMuzi wrote: On 10/1/2016 11:56 AM, Joerg wrote: On 2016-10-01 09:11, Sir Ridesalot wrote: On Saturday, October 1, 2016 at 12:02:29 PM UTC-4, Joerg wrote: On 2016-10-01 06:47, AMuzi wrote: On 9/30/2016 7:10 PM, Joerg wrote: On 2016-09-30 16:49, Doug Landau wrote: The old days were definitely not good when it comes to gear ratios. I think those corncob cassettes have ruined many folks' knee joints. On my old Shimano 600EX set I crammed a 32T in there. Officially it's not supposed to be able to shift up there but I could get it to work. As one grows older 28T ain't always enough when the smallest ring up front is 42T. With a 39 it is, tho The BCD is too large for that on the old Shimano cranks :-( How old? Shimano went to 130mm in late 1972, 15 years before Campagnolo moved to 39t-compatible format. The bike was custom-built in 1982. Years later I inquired at another LBS and they said there is no fitting ring smaller than 42T for this 600 series crank. It was similar with UG cassette where I could not find one with large cogs and "mountain" gear spacing. So I hacked an HG cassette by grinding down parts of the wider inner splines with a Dremel. Now that the UG hub has failed and I replaced it with a 7-speed HG hub I can just buy HG cassettes without needing to hack them. Although it's easy to do and allows mix and match to replace that one worn sprocket. -- Regards, Joerg http://www.analogconsultants.com/ The catalogue for the Shimano Arabesque 600 crankset shows that it could take an inner ring or 39 - 45 teeth and an outer ring of 48 - 53 teeth and that's the 1983 catalogue. The earlier Shimano AX cranksets used the same chainrings. It's not Arabesque but EX. As Andy said it should take 39T, if one can get it. However, with 32T in back the rear derailer would have a hard time accommodating the slack. I really don't want to give up that 32T cog. If you need a lower gear then by all means set up a lower gear. Our Santana tandems for example run 130mm x 74mm triples with a 36t low cassette using standard Shimano rear changers. Nothing special or exotic. Modern sets can do that, like the Deore XT on my MTB. I'd have to essentially scrap all the 600EX stuff and replace it. But it's ok, after training long enough there are only a few hills I have a hard time climbing with 42/32. During that time my weight increased 12lbs but zero added waistline. It's probably all in the leg muscles which are much thicker now. On Wednesday I saw a guy pushing this to the extreme. On the worst climb of my weekly route down towards the valley he rode up and down and up and down, with a pain-expressing face. -- Regards, Joerg http://www.analogconsultants.com/ Or you could do a VERY SIMPLE search on the web and buy either a used or NOS long cage Shimano 600 EX rear derailler. If possible I'd like to keep the bike as is. Else I could simply fit an MTB derailer. Anyhow, going from 42T in front to 39T isn't such a huge difference. In back I already went to the max available. My leg muscles are trained enough by now to be able to do the hills around here with what I've got. Sometimes Joerg I wonder if you actually ride a bike. About 4000mi/year or 3x the mileage of my car. -- Regards, Joerg http://www.analogconsultants.com/ |
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