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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 02-12-05, 12:29 PM   #1
Mr. Joker
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Old 02-12-05, 12:33 PM   #2
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I'd probably suggest a dremel over a hacksaw.

But that's only if I was going to suggest that you do it at all.

Which I'm not.

As far as it only being 10 bucks, yeah, that's the cost of your frame, but how much is it going to cost when the break and you go splut on the pavement or under a car?
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Old 02-12-05, 12:40 PM   #3
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Ummm... Ever think about trying to build it up first and see if what you have is good enough? I'd be inclined to go so far as to replace a link with a half link to see if that made a diff before I went at the dropouts with any implement. Even then, I would use some sort of rotary tool with a barrel grinder as HereNT suggests. But probably you'd just be best served by making sure that it's actually a problem before you go solving it.
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Old 02-12-05, 12:41 PM   #4
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seems to me there'd have to be a whole lot of extra metal in the dropout for this to be a vaguely good idea...
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Old 02-12-05, 01:32 PM   #5
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I have a World Sport and I think there is plenty of room to file down. I'm guessing that your frame is like mine with a nice long non-drive side dropout and a filled in drive side dropout? I tired filing, but it takes a lot of time, so I just went with a half link.
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Old 02-12-05, 01:52 PM   #6
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Originally Posted by PhattTyre
I have a World Sport and I think there is plenty of room to file down. I'm guessing that your frame is like mine with a nice long non-drive side dropout and a filled in drive side dropout? I tired filing, but it takes a lot of time, so I just went with a half link.

A friend has a similar frame... why they were built that way (with uneven drops) is beyond me. We started dremeling, but after a few asploding bits, we are going to drill it out first, then dremel.
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Old 02-12-05, 01:55 PM   #7
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This came up recently elsewhere around these parts.

The NDS was a "non-adjustable" dropout. You only needed one with reasonable depth to be able to properly center the wheel.
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Old 02-12-05, 02:24 PM   #8
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Originally Posted by bostontrevor
This came up recently elsewhere around these parts.

The NDS was a "non-adjustable" dropout. You only needed one with reasonable depth to be able to properly center the wheel.
I was thinking of this yesterday... wouldn't that result in the hub being cocked in the drops? Or I am I thinking of this wrongly?
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Old 02-12-05, 02:39 PM   #9
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Yeah, assuming that the axle, rim, and bike frame are all factory-true. If any othe these is bent out of true, well you're gonna need some wiggle room.
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Old 02-12-05, 02:44 PM   #10
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Originally Posted by bostontrevor
Yeah, assuming that the axle, rim, and bike frame are all factory-true. If any othe these is bent out of true, well you're gonna need some wiggle room.
True, and I guess Schwinn never really intened these bikes to be fixed, so you would only really need to adjust for manufacturing tolerances.
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Old 02-12-05, 02:49 PM   #11
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I had dropouts like that on my first conversion. Drilled it out to match the nondrive side, never had a problem with it. My neighbors did tho, since I was doing it at like- 3am!
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Old 02-12-05, 03:04 PM   #12
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Originally Posted by bostontrevor
Yeah, assuming that the axle, rim, and bike frame are all factory-true. If any othe these is bent out of true, well you're gonna need some wiggle room.
Which leads to the question: why do modern road bikes have vertical drops?
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Old 02-12-05, 03:24 PM   #13
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My first guess is because it makes it impossible for the wheel to slide around or for the dropouts to get bent. Of course if anything else is messed up, you're screwed, but then bikes are built less and less for serviceability, ya know?
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Old 02-12-05, 03:28 PM   #14
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I've always assumed it was due to closer shifter tolerances. If the wheel is on only one location you can design a more precese shifer. But as I said I am assuming. I kinda wish my road bike had them today when my wheel kept slipping 13 miles from home.
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Old 02-12-05, 03:42 PM   #15
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True. Without thinking too hard about it, it may be necessary for tightly indexed shifting, for example.
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Old 02-12-05, 04:28 PM   #16
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vertical dropouts also make it easier to pull the rear wheel out of the frame. this in turn makes wheel swaps (if a rider gets a flat) mid-race much faster. easy in, easy out, no mucking about trying to center the wheel.
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Old 02-12-05, 05:30 PM   #17
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correct me if im wrong here.. but if you want to super bike geek.. thats why they are called dropouts.. verttical dropouts is redundant..did i spell that right.. track ends are not dropouts.. nothing drops out.. im not trying tto be a dick and i may be wrong.. i just dont want the old dude at the shop snickering at you and making you feel bad..cause i learned this from the know it all old dude...
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Old 02-12-05, 06:02 PM   #18
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Umm... yeah, but horizontal dropouts aren't track ends. They're dropouts. Track ends are.. well, track ends.
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Old 02-12-05, 06:18 PM   #19
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Quote:
Originally Posted by ofofhy
True, and I guess Schwinn never really intened these bikes to be fixed, so you would only really need to adjust for manufacturing tolerances.
Or they never intended to manufacture perfectly straight frames...
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Old 02-12-05, 07:02 PM   #20
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Or they never intended to manufacture perfectly straight frames...
to hear that from you is blasphemy!
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Old 02-12-05, 07:06 PM   #21
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Old 02-12-05, 07:07 PM   #22
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Just a thought, but build a wheel with an Eno hub.
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Old 02-12-05, 07:31 PM   #23
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Just a thought, but build a wheel with an Eno hub.
I did the same. Some may look at it as the east way out, but I was able to use a new frame with vertical drops. Wheel installation is a breeze! I highly recommend it if it suits your needs. FWIW, my LBS built up my wheels with Velocity Deep V rims and 32H/14GA spokes. It's a bulletproof setup.
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Old 02-12-05, 09:53 PM   #24
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Just a thought, but build a wheel with an Eno hub.
I think the guy was talking about a $10 thrift store bike. That Eno hub is worth 15.9 thrift shop bikes.
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Old 02-13-05, 07:56 PM   #25
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I think the guy was talking about a $10 thrift store bike. That Eno hub is worth 15.9 thrift shop bikes.
The guy was also talking about taking a hacksaw to the dropouts.

Shattered teeth, wired jaw bone, broken femur, facial plastic surgery...several hundred thrift store bikes-when the hacked drops fail at speed.

Eno hubbed wheel...priceless.

Just a thought.
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