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General Bike Thread (Desiderata, Questions, Pics)

Discussion in 'Fine Living, Home, Design & Auto' started by kronik, Apr 30, 2009.

  1. otc

    otc Stylish Dinosaur

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    Custom frame that was stolen and recovered (sans parts). So it is entirely possible the thief or subsequent "owner" did something stupid like tried to fit a track hub in there or just stored it somewhere it could get squished a bit.

    I put the rear wheel in and it just looked off which made me start measuring (also, it didn't slide nicely into the dropouts...spacing felt a little tight).

    There's a chance they are asymmetrical chainstays (to reduce dish), so I'll have to take some more measurements (that would throw off the string test), but I was holding a board to the rim and it was looking like it wasn't centered on the seat tube/BB shell.

    Then it could be paranoia, but looking closely I started feeling like the dropouts weren't parallel to each other...
     

  2. Alexidb

    Alexidb Senior Member

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    Check the points where the chain stays and frame stays meet the dropouts and the frame/bb shell. If there is no obvious distortion there take it to a bike shop and have them put drop a drop-out alignment gauge on it.

     
    Last edited: Jan 2, 2019

  3. venessian

    venessian Distinguished Member

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    You will have to do more checks to see what the issue is, if any, but asymmetric chainstays are not related to dish. Dish is a wheel issue, relating the hub/rim centerline to the axle/frame centerline.

    Asymmetric rims are designed for dish, of course, as are offset hubs (flanges). Asymmetric chainstays otoh have to do more with chainline, perceived frame stiffness, and generally (much more, really) aesthetics and marketing.

    Slightly off-kilter dropouts are the more likely cause of your issue, from what you describe.
     

  4. Joffrey

    Joffrey Stylish Dinosaur

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    So, the mounts for my bicycle's front and rear lights broke. The lights themselves work so just the mounts are broken. Anything I can do to fix them or should I just buy new ones? I hate to waste the lights but I have a feeling buying supplies to fix/replace the mounts may cost as much.FYI, the lights were not expensive ($8 for both the front and rear).
     

  5. otc

    otc Stylish Dinosaur

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    Picture of the offending light/mount?

    Depending on how it attaches, the answer ranges from "easy fix" to "sad reality of cheapo disposable lights".
     

  6. Alexidb

    Alexidb Senior Member

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    Buy better lights and you get better mounts. Go to your LBS and buy some rechargeable Blackburns for 20-40 bucks and you’ll have a stronger mount and a lifetime warranty.

     

  7. Joffrey

    Joffrey Stylish Dinosaur

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    Thanks. I think I will invest in better quality lights. Any opinion on Cygolite compared to Blackburns? The wirecutter gave the cygolites pretty good reviews.
     

  8. Alexidb

    Alexidb Senior Member

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  9. Joffrey

    Joffrey Stylish Dinosaur

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  10. Alexidb

    Alexidb Senior Member

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  11. venessian

    venessian Distinguished Member

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    Blackburn make good products, but I have never owned any of their lights.

    My brother, a full-time commuter, has Cygolites, front and rear. Expilion something or other. He bought them because I think they are one of the few/only manufacturer that still sells replacement Li-Ion batteries (ie not throwaways). He loves his Cygolites, and I have been impressed seeing/handling them.

    I have Light & Motion, also excellent imo and worth a look.
     

  12. Joffrey

    Joffrey Stylish Dinosaur

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    Primarily to be seen although illuminate the road where possible. I usually ride from spring to fall on my way to/from work so it doesn't get too dark here thus not terribly worried about seeing the road. Plus I ride in an urban environment so street lights are reasonable. I may start winter cycling (commuter) in the next year or so, so I guess I could consider stronger lights then.
     

  13. Alexidb

    Alexidb Senior Member

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    It’s counter intuitive but to overcome the ambient light of an urban environment you need a brighter light. But in general you can get away with just blinkiez ‘cause you can see the road. The Cat Eye Volt 700 is a reliable light, I really like the fact that you can have a steady beam with a pulse.

     

  14. emptym

    emptym Moderator Moderator

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    I've used one of these rechargeable lights w/ motion sensor for about a year and it's been great. Love the subtlety of the underseat mount. For a headlamp, I ziptie a Maratac AAA flashlight into a vent on my helmet. Would probably hurt in a crash, but has a good beam and will probably last decades.
     

  15. Alexidb

    Alexidb Senior Member

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    People that mount their lights to their helmets should be forcibly removed from the commuter pool.

     

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