No Luck with Bicycles, Same Problems Keep occuring
#26
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From: Fairplay Co
Bikes: Current 79 Nishiki Custum Sport, Jeunet 620, notable previous bikes P.K. Ripper loop tail, Kawahara Laser Lite, Paramount Track full chrome, Raliegh Internatioanl, Motobecan Super Mirage. 59 Crown royak 3 speed
If you hit the gears right on snow you will go much better even faster on snow. For beginning for this type use start on the middle front and middle on rear.
#27
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From: IL-USA
I think a lot of casual-use people would prefer IGH, but it's almost wasting your breath to mention it.
Between the hassle of having a shop convert a single-speed bike and the resulting total cost, I've not heard of any non-bicycling enthusiast who has ever bothered.
"Why pay $700 for this, when wal-mart has nearly the same thing for $100?"
'Because this will work right and last longer and be a lot nicer to use. If any of that matters.'
#29
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From: Mountain View, CA
Bikes: 2012 Scott CR1 Comp
IGH's have a place and a use. It may even be that the OP would be better served by one. However, to say that derailleurs are stupid technology is just ignorant trolling.
#30
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#31
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I did? well i said he doesn't know how to shift... that's a problem? Seen threads like this way too many and people just get tired of reading them and is not even funny. To me the guy doesnt know how to shift or use the gears, is that being rude?
I can be rude if that makes you happy...
I can be rude if that makes you happy...
#32
The next post after yours had a helpful tone, and offered suggestions as to how to shift properly.
Thanks for trying to spare us. But many of us actually like to help people who are having problems. It's actually the intended purpose of this subforum.
Last edited by Ferrous Bueller; 03-21-13 at 10:47 AM.
#33
Mechanic/Tourist
Joined: Apr 2007
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From: Syracuse, NY
Bikes: 2008 Novara Randonee - love it. Previous bikes:Motobecane Mirage, 1972 Moto Grand Jubilee (my fave), Jackson Rake 16, 1983 C'dale ST500.
For me the problem was posting the comment after the OP had been given information on using his gears and said "Thanks, I understand now," thereby implying that he could not learn.
As I initially said in my response to the comment (post #6) "That was undoubtedly true initially. Let's take him at his word unless we hear from him again."
As I initially said in my response to the comment (post #6) "That was undoubtedly true initially. Let's take him at his word unless we hear from him again."
Last edited by cny-bikeman; 03-21-13 at 06:08 PM.
#34
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From: Melbourne, Oz
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Hey GORD, did you know the derailleur drivetrain is the most efficient drive transfer system ever invented, and is virtually certain to never be eclipsed?
Thought not.
Last edited by Kimmo; 03-21-13 at 03:35 PM.
#36
You Know!? For Kids!



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From: Just NW of Richardson Bike Mart
Bikes: '05 Trek 1200 / '90 Trek 8000 / '? Falcon Europa
Bicycle wrenching is serious bidness. Save the silliness for foo.
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#37
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#38
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From: Elevation 666m Edmonton Canada
Bikes: 2013 Custom SA5w / Rohloff Tourster
If dRs are SO efficient ....
Then why does every LHT rider complain they ride like SLUGS ???
Then why do all tour guys all think they need a 20 GI ???
Then why does weight weenie matter SO much ???
All I can compare is the bikes I have used, none were less than 40 lbs as used.
dRs are LESS efficient in any gear is what I concluded after riding 2800 miles with my XL-RD5w and XL dyno front hub.
They accelerate faster mostly because of WEIGHT difference, they certainly are less aerodynamic. and pathetic when the chain gets dirty in the real world.
My Fastest ever speed = SA on the first try, 44.63 mph wizzout from standing start on a bit over 1/4 mi hill.
This spring it will go up to 50 easily, when it is on my custom roadster and use a 48/17T.
Best at hill climbing = SA, with un-low of 43.5 GIs Less strain, more speed for same effort, even on 20% heavier bike.
I went farther with the SA than I ever thought to go with dRs, Zero worries.
Then why does every LHT rider complain they ride like SLUGS ???
Then why do all tour guys all think they need a 20 GI ???
Then why does weight weenie matter SO much ???
All I can compare is the bikes I have used, none were less than 40 lbs as used.
dRs are LESS efficient in any gear is what I concluded after riding 2800 miles with my XL-RD5w and XL dyno front hub.
They accelerate faster mostly because of WEIGHT difference, they certainly are less aerodynamic. and pathetic when the chain gets dirty in the real world.
My Fastest ever speed = SA on the first try, 44.63 mph wizzout from standing start on a bit over 1/4 mi hill.
This spring it will go up to 50 easily, when it is on my custom roadster and use a 48/17T.
Best at hill climbing = SA, with un-low of 43.5 GIs Less strain, more speed for same effort, even on 20% heavier bike.
I went farther with the SA than I ever thought to go with dRs, Zero worries.
#40
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From: Melbourne, Oz
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And yes, you're right that it all goes out the window when it gets dirty.
But just because a derailleur drivetrain doesn't suit your needs, that doesn't mean everyone running one has drunk the kool-aid.
#41
GamblerGORD53, there is more to the world then your limited life experiences. You sound the the owl in this video;
The mechanical efficiency of a drive system is defined as the ratio of the power output to the power input; often measured in percentages. In a vacuum on a flat plane, all things being equal, Dr and IGH are close to being equal, but overall the IGH requires 8% more inertia in some gears to get going and has little to no input momentum (when you are coasting with a freehub/wheel there is little resistance bringing the drivetrain up to speed; with a IGH you feel more resistance as you bring the internal workings back up to speed. Another issue is not only are IGH do not lend themselves to quick releases, add to that the rear wheel weight and linkage to the hub and rear wheel removal can be problematic. To answer all three of your question, the answer is weight. When all things are not equal and you start climbing, weight becomes a major factor. I don't race anymore, but most of my bikes are 20-22 lbs and riding a 30lbs+ road bike feels like I'm riding in mud. Depending on the number of gears this will add 1 to 3 lbs to the rear end. The weight distribution of a bicycle is usually around 60% rear. With a 22 lbs bike, a rear 3 lbs difference (7-8 gears) would increase 7% weight to the rear, which would likely effect medium to high speed fork stability.You also have the fact the gearing of an IGH is fixed, while with a derailleur it can be changed to fit the ride (the widest gear spread is not always the best option).
#42
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Joined: Nov 2010
Posts: 672
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From: River City, OR
If dRs are SO efficient ....
Then why does every LHT rider complain they ride like SLUGS ???
Then why do all tour guys all think they need a 20 GI ???
Then why does weight weenie matter SO much ???
All I can compare is the bikes I have used, none were less than 40 lbs as used.
dRs are LESS efficient in any gear is what I concluded after riding 2800 miles with my XL-RD5w and XL dyno front hub.
They accelerate faster mostly because of WEIGHT difference, they certainly are less aerodynamic. and pathetic when the chain gets dirty in the real world.
My Fastest ever speed = SA on the first try, 44.63 mph wizzout from standing start on a bit over 1/4 mi hill.
This spring it will go up to 50 easily, when it is on my custom roadster and use a 48/17T.
Best at hill climbing = SA, with un-low of 43.5 GIs Less strain, more speed for same effort, even on 20% heavier bike.
I went farther with the SA than I ever thought to go with dRs, Zero worries.
Then why does every LHT rider complain they ride like SLUGS ???
Then why do all tour guys all think they need a 20 GI ???
Then why does weight weenie matter SO much ???
All I can compare is the bikes I have used, none were less than 40 lbs as used.
dRs are LESS efficient in any gear is what I concluded after riding 2800 miles with my XL-RD5w and XL dyno front hub.
They accelerate faster mostly because of WEIGHT difference, they certainly are less aerodynamic. and pathetic when the chain gets dirty in the real world.
My Fastest ever speed = SA on the first try, 44.63 mph wizzout from standing start on a bit over 1/4 mi hill.
This spring it will go up to 50 easily, when it is on my custom roadster and use a 48/17T.
Best at hill climbing = SA, with un-low of 43.5 GIs Less strain, more speed for same effort, even on 20% heavier bike.
I went farther with the SA than I ever thought to go with dRs, Zero worries.
#43
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Joined: Mar 2008
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For any mere mortal, a loaded ride up https://en.wikipedia.org/wiki/Col_du_Tourmalet, or even one of the lesses passes would make that eminently clear. Or pretty much any climb longer than spitting distance, when there's a 3" layer of mushy snow on the ground
Well sure, if you're happy making statements w/o access to decent comparison material, why would you care about what readily repeatable and controllable lab results has to say.
True, but not important. The drag generated by the derailer is entirely insignificant compared to the drag generated by the rider. As long as a rider can't maintain the perfect tuck throughout the ride, there's virtually nothing to be gained aerodynamically by removing the derailer.
Sorta true. But at least derailer setup contamination is easily verifiable. How much gunk do you think you have hiding inside an unserviced IGH after a couple of seasons.
So? That says more about how long you've kept at it than what effort and/or speed you used. There may well be people who've run farther than I have ridden. That doesn't make running more efficient.
#44
Mechanic/Tourist
Joined: Apr 2007
Posts: 7,522
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From: Syracuse, NY
Bikes: 2008 Novara Randonee - love it. Previous bikes:Motobecane Mirage, 1972 Moto Grand Jubilee (my fave), Jackson Rake 16, 1983 C'dale ST500.
I don't normally call BS, but really GORD! You expect us to believe you can achieve 44+ mph on any bike? C'mon down here to real bike territory and I'll bet you get dropped by the commuter chicks heading home from work. 50 mph on your "custom roadster" with 48-17s? What's the cadence on that one? LOL!@
Last edited by cny-bikeman; 03-22-13 at 07:10 AM.
#45
You Know!? For Kids!



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From: Just NW of Richardson Bike Mart
Bikes: '05 Trek 1200 / '90 Trek 8000 / '? Falcon Europa
So, what chain lube works best on an IGH drivetrain? Can you use the same lube you would on derailleur chain?
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#46
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Joined: Jun 2008
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From: Pittsburgh, PA
Bikes: Co-Motion Cappuccino Tandem,'88 Bob Jackson Touring, Co-Motion Cascadia Touring, Open U.P., Ritchie Titanium Breakaway, Frances Cycles SmallHaul cargo bike. Those are the permanent ones; others wander in and out of the stable occasionally as well.
Don't forget, we all were beginners once too and did find out these same thingsourselves over time. Most of us were lucky enough to learn to ride with experienced dads, brothers, friends, etc. and probably when we were 6 or 7. My wife rode her first derailleur bike with me many years ago and I remember that it probably was a good thing she rode a lot with me and was not out there on her own at first figuring these things out. I am pretty sure if she were on her own to figure it out she would have abandoned biking after a few rides, or had the bike back at the bike shop with all sorts of complaints about it.
Evan, I hope you got it figured out and hope you come back to the forum for more help as your experience increases.
Best of luck!
Evan, I hope you got it figured out and hope you come back to the forum for more help as your experience increases.
Best of luck!
#47
Mechanic/Tourist
Joined: Apr 2007
Posts: 7,522
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From: Syracuse, NY
Bikes: 2008 Novara Randonee - love it. Previous bikes:Motobecane Mirage, 1972 Moto Grand Jubilee (my fave), Jackson Rake 16, 1983 C'dale ST500.
#48
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Evan, I didn't see this possibility mentioned in the above posts; you say that "the pedals always just stop and won't go forward" -- it sounds to me like it might be possible that your chain is too short to reach all the way around the big front chainring and the big rear cog. As noted above, it is generally considered bad practice to use such a "crosschain" gear combination.
I have the same thing on my bike; I moved all the components (including chain, gears etc) from one bike to a larger frame, and now if I try to shift into the large-large combination it doesn't quite make it, and everything is totally frozen until I release the rear quick-release so the wheel can slide forward and provide slack to shift the chain away from the big/big combination. For me it's not a problem because (a) I don't ride cross-chained in general and (b) I hardly ever use the big front chainring anyways. The only time this ever happens to me is after I clean/tune my bike and I'm riding circles in the cul-de-sac to work it through all the gears, and forget to avoid the big/big combo.
Sheldon Brown says:
And I can't find it right now, but I seem to remember SB writing something about common practice for bike shop mechanics to install chains a little too short, because it is not expected for riders to shift into the big/big combination, but if they do...watch out!
Crosschaining is certainly suboptimal for the durability of your drivetrain components, so as advised above, you should probably avoid it. But if it's something you really want to do -- or something you expect to occasionally do accidentally -- you should make sure your chain is long enough for it.
I have the same thing on my bike; I moved all the components (including chain, gears etc) from one bike to a larger frame, and now if I try to shift into the large-large combination it doesn't quite make it, and everything is totally frozen until I release the rear quick-release so the wheel can slide forward and provide slack to shift the chain away from the big/big combination. For me it's not a problem because (a) I don't ride cross-chained in general and (b) I hardly ever use the big front chainring anyways. The only time this ever happens to me is after I clean/tune my bike and I'm riding circles in the cul-de-sac to work it through all the gears, and forget to avoid the big/big combo.
Sheldon Brown says:
And I can't find it right now, but I seem to remember SB writing something about common practice for bike shop mechanics to install chains a little too short, because it is not expected for riders to shift into the big/big combination, but if they do...watch out!
Crosschaining is certainly suboptimal for the durability of your drivetrain components, so as advised above, you should probably avoid it. But if it's something you really want to do -- or something you expect to occasionally do accidentally -- you should make sure your chain is long enough for it.
#49
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#50
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