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Old 05-19-2017, 01:15 PM   #841
ec437
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The rule I've heard for stem length is that the elbow should be laterally 3-4cm ahead of the knee at the front of the stroke, which is about where I'm at. For seat height, I also made sure my foot was level to the ground when I locked my knee at stroke bottom.
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Old 05-19-2017, 01:26 PM   #842
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The rule I've heard for stem length is that the elbow should be laterally 3-4cm ahead of the knee at the front of the stroke, which is about where I'm at. For seat height, I also made sure my foot was level to the ground when I locked my knee at stroke bottom.
if it works for you, then go with it I guess. everything I saw said your knees should never *quite* lock out throughout the pedal stroke.

YMMV and all that though.
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Old 05-19-2017, 01:58 PM   #843
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They shouldn't; that's just how the seat is adjusted.
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Old 05-19-2017, 07:55 PM   #844
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watching the tour of California while sitting in my hotel room really makes me miss my roadie
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You can get pills to help with that.
trying to close the deal on a slightly used road bike drivetrain that i'll use to convert my fart-around bike into a roadie/gravel grinder.

aww yeah.
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Old 05-20-2017, 09:42 AM   #845
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Watching the TdF in the Armstrong era is what got me into riding again.

I haven't ridden the roadie much in the last decade.

I'm trying to decide whether to keep it or move on.
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Old 05-23-2017, 09:59 AM   #846
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My dad gave me his old 1977 Super Course last night. It's in rough shape and needs a paint job but all the components are there. It's one frame size two big for me (23.5" vs 21.5") so I might try to do a 650b conversion on it and see if that will bring down the standover height enough.
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Old 05-24-2017, 10:41 AM   #847
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I've got it stripped except for the right crank, bottom bracket, seat post, and stem. Tools are in the mail for the former two, but the latter two are really stuck -- aluminum oxidized into a steel frame from 30 years in a damp garage. I may not be able to get them out, but I have yet to apply the combined magic of chemistry and a BFH.

The chain, chain rings, and front derailer are totally shot. The rear derailer needs to be rebuilt. My dad has an extra set of dura ace components lying around but it seems kind of silly to put them on this bike, so unless I fix the original parts I may fit it with an internally geared hub.

Assuming I get the post and stem out, my plan is to get new brake mounts brazed onto the frame, fit it with either 26" or 650c wheels (I may have to build them myself), touch up the paint or have it powder coated, restore the decals, and clear coat it.

If I can't remove the post and stem without a hacksaw or a machine shop, I'm not sure it will be worth it to salvage the frame. I could try to find a super course frame in the right size and rebuild it with original components. As long as I'm doing stupid bike things, I guess I could have a frame builder chop and resize this frame.

Dumb and impractical, but it'll be a fun frankenbike.

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Old Yesterday, 12:28 AM   #848
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This stem is permanently attached to the frame.



I soaked the steer tube with ammonia for 24 hours and wailed on that 4 foot pipe as hard as I could. All I did was bend the top of the stem.
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Old Yesterday, 05:34 PM   #849
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This stem is permanently attached to the frame.



I soaked the steer tube with ammonia for 24 hours and wailed on that 4 foot pipe as hard as I could. All I did was bend the top of the stem.
Fire wrench?
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Old Yesterday, 06:07 PM   #850
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Not sure I follow.
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Old Yesterday, 06:39 PM   #851
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Old Yesterday, 06:40 PM   #852
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Old Yesterday, 07:11 PM   #853
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don't listen to me
Not to worry; I never do!
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Old Yesterday, 07:14 PM   #854
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Old Yesterday, 08:06 PM   #855
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Not sure I follow.
Heat the steerer tube/stem area with a torch until its hot then try to work the stem loose.
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Old Yesterday, 11:07 PM   #856
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Aluminum expands faster than steel! I suspect that would only make it more stuck - maybe if I sprayed liquid nitrogen inside...?
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Old Yesterday, 11:18 PM   #857
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From the source of all arcane bike wisdom:

http://www.sheldonbrown.com/brandt/stuck-stem.html
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Old Today, 12:49 AM   #858
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maybe if I sprayed liquid nitrogen inside...?
Is it a T-1000? Because otherwise...
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