Advertise on Bikeforums.net



User Tag List

Page 1 of 2 12 LastLast
Results 1 to 25 of 29
  1. #1
    Lunigma
    Guest

    Planning climb to Griffith Observatory on a Fixie

    Alright so here's a challenge. I plan on climbing up to the Griffith Observatory (here in LA) on a fixie. For those of you who live in LA you know how big of a challenge this is.

    Setup:
    Fixed/Fixed Flip Flop hub: 13T on side 23T other side.
    Two chain rings: 33/42 (plan to switch them)

    My plan:
    I'll be riding from Highland Park to the bottom of the hill on a 33T Chain Ring and a 13T Cog in the back. This gives me 68.5 Gear Inches, which is fine.

    Once at the bottom of the hill I'll flip the wheel around and add a couple of links to my SRAM PC-58 chain. (I'll be carrying a tool, shouldn't take more than a minute). At this point I'll 33T in front and 23T in the back. This will give me 38.7 Gear Inches, which I think might actualy be a little low for the climb.

    Once at the top I'll turn the wheel back around and switch the Chain Rings around and adjust the chain. I'll then have 42T in front and 13T in the back, this would give me 87.2 Gear Inches. I think that's high enough to go back down the hill without letting the pedals get ahead of me.

    I plan on getting the cogs and chain rings from sheldon's site or if i can get them cheaper on ebay ill try for that.

    Has anyone else attempted to do something similar to this? Is there anything I might have done wrong in my planning, I don't want this to go wrong. Is anyone who's familiar with this climb know what the distance up is? I need all the help I can get. Also I'll be doing this climb with friends who are on geared bikes. Is there anything about my setup I should change? HELP!?

  2. #2
    Lunigma
    Guest
    Here are the cogs and chain ring I plan on getting from sheldon:

    33T Chain Ring

    the chain ring has ramps and shift-assisting pins but i figure with a proper chain line it should be fine

    Dura Ace 13T Cog

    Soma 23T Cog

    without that soma 23T cog this all wouldn't be possible. I love how tuff it looks.

    Any help will be appreciated

  3. #3
    ... tlupfer's Avatar
    Join Date
    Nov 2004
    Location
    Minneapolis, MN
    Posts
    708
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    42x13 and 33x23 should be able to use the same chain length. skip the 33x13

    also, you could use a double in front and washers on the rear hub to line up one ring with one cog and the other ring with the other cog so that all you'd have to do would be to flip the wheel.

    oh, and there's very little chance you'll keep up to your road riding buddies on the descent, unless they're coasting, feathering the brake, and/or not at all tucked.
    Last edited by tlupfer; 09-12-05 at 06:47 AM.

  4. #4
    Senior Member
    Join Date
    Nov 2004
    Location
    ohio sucks
    Posts
    160
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    man, you should just carry a nice selection of 8 or so cogs in your jersey pocket and a wrench, and then stop as needed when the terrain changes and swap out the best one. It would take practically no time at all and you'd have a sweet set of gear ratios to match any terrain!

    that'd be almost as good as having a rear derailler . . .

  5. #5
    hello roadfix's Avatar
    Join Date
    May 2003
    Location
    Los Angeles
    My Bikes
    thank you for asking
    Posts
    18,502
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I regularly ride my Steamroller geared at 46/18 to the top. There's really no need to flip your wheel, it's not a long or steep climb. 69 inches is plenty low enough to take you to the top. The observatory itself is still closed due to renovations but the road to the top remains open. Avoid weekends due to tourist traffic near the top. Have fun....keep your bike simple and leave your chaintool, extra chainring and cog at home...
    Last edited by roadfix; 09-12-05 at 11:09 AM.
    .cinelli.olympic.surly.long.haul.trucker.kona.ku.surly.steamroller.
    .litespeed.classic.litespeed.firenze.bianchi.pista.dean.colonel.plus.more.

  6. #6
    Better than you since 83! junioroverlord's Avatar
    Join Date
    Oct 2004
    Location
    Up a big F'ing Hill
    My Bikes
    Fixed Gear 79 Schwinn Sprint
    Posts
    1,117
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I agree with the Fixer on this one. There shouldn't be a real need to swap out anything on your way up there. I ride 41x14 and I can make it up there no problem.

    The real issue here is, how do you ride fixed in Highland Park and I not know who you are? I used to live there like six months ago and could have sworm me and my roomate were the only fixed riders in the area. Wierd.
    "Riding bikes on the street is the fuggin jam!" Juvi-Kyle

  7. #7
    like, really sloppy sloppy robot's Avatar
    Join Date
    Jan 2005
    Location
    calipornia
    Posts
    2,285
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    yes.. i second juniors second.. youre way overthiking this one.. its cake.. one of my favorite rides in l.a. is to bike riverside into the park.. and keep going until the train museum.. then staying in the park past forest lawn..up the hill to the top and turnning onto the closd road... ride that to the top behind the hollywood sign and if you go down straight youll end up at the observatory..no need for all the gear fussin.

  8. #8
    hello roadfix's Avatar
    Join Date
    May 2003
    Location
    Los Angeles
    My Bikes
    thank you for asking
    Posts
    18,502
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by sloppy robot
    .. one of my favorite rides in l.a. is to bike riverside into the park.. and keep going until the train museum.. then staying in the park past forest lawn..up the hill to the top and turnning onto the closd road... ride that to the top behind the hollywood sign and if you go down straight youll end up at the observatory..no need for all the gear fussin.
    Man...that's my exact route to the teeth...
    .cinelli.olympic.surly.long.haul.trucker.kona.ku.surly.steamroller.
    .litespeed.classic.litespeed.firenze.bianchi.pista.dean.colonel.plus.more.

  9. #9
    Wher'd u Get That Jacket? flythebike's Avatar
    Join Date
    Sep 2004
    Location
    Somewhere in the Tubes
    My Bikes
    Calfee Dragonfly, Lemond Poprad, Airborne Manhatten Project, Calfee Luna Fixie
    Posts
    1,317
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    GET A ROAD BIKE. YOU ARE ALLOWED TO OWN MORE THAN ONE BIKE. FIXED GEAR LOVE IS NOT A MONOTHEISTIC RELIGION (at least not to me).There just gets to be a point where it gets ridiculous.
    WeBlog: http://flythebike.blogspot.com
    "Then know, that I have little wealth to lose. A man I am, crossed with adversity; My riches are these poor habiliments, Of which if you should here disfurnish me, You take the sum and substance that I have." Shakespeare: The Two Gentlemen of Verona
    Calfee Dragonfly Record, Calfee Luna Fixie T/A, Level, Campy Cervelo P3SL Campy, Lemond Poprad Campy, Fisher X-Calibur

  10. #10
    lurkin' rmont's Avatar
    Join Date
    May 2005
    Location
    Padena
    My Bikes
    classic windsor, merckx, peugeut, schwinn
    Posts
    73
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I ride up Lake Avenue in Pasadena on a 49 x 16 without too much trouble - and then up and down the hills and across to the Rose Bowl - Griffith Park shouldn't be too bad depending on which road you ride.

    Hijack (sorry) - Now that I am back on the saddle (had a bad spill a few months back and have been too busy helping with my wedding and soon-to-be-wife's new business - never do this two things at the same time) - I will have some more time to get around in addition to my 3 mile r.t. ride to work and occasional ride.

    I know a few other riders who have just moved into the area who are also looking to meet up with others. I will not be available until early October, but maybe a meet up at Lucky Baldwin's or other such fine establishment and then head out.

  11. #11
    Senior Member
    Join Date
    Feb 2005
    Posts
    90
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    One day of climbing, or one climb and descent is unlikely to need much "manual transmission"
    If you do all the flipping, flopping, and changing of chainrings, i would be interested to hear about your experience.
    Since i am planning this insane ride across the U.S., fixed (Big Fix 2006) We will likely employ similar strategies in the Rockies, Sierra Nevada, Utah. www.fixhistio.org
    But i agree that for one day, or one climb, pick your ratio, stick with it.
    A bunch of us here in Nocal paln to ride a flattish century--4K ft of climbing, 3 longer climbs, and most of of will use 72-85 gear inches.
    Have fun, spinning is winning, live fixed or die!

  12. #12
    Better than you since 83! junioroverlord's Avatar
    Join Date
    Oct 2004
    Location
    Up a big F'ing Hill
    My Bikes
    Fixed Gear 79 Schwinn Sprint
    Posts
    1,117
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by rmont
    I ride up Lake Avenue in Pasadena on a 49 x 16 without too much trouble - and then up and down the hills and across to the Rose Bowl - Griffith Park shouldn't be too bad depending on which road you ride.

    Hijack (sorry) - Now that I am back on the saddle (had a bad spill a few months back and have been too busy helping with my wedding and soon-to-be-wife's new business - never do this two things at the same time) - I will have some more time to get around in addition to my 3 mile r.t. ride to work and occasional ride.

    I know a few other riders who have just moved into the area who are also looking to meet up with others. I will not be available until early October, but maybe a meet up at Lucky Baldwin's or other such fine establishment and then head out.
    That's half my commute! Whats with all you fixies in Pasadena coming out of the wood works??? I'd so be down for a bike get together. I work at Polytechnic School and live up near Altadena myself. I'm trying to organize a Saturday morning Dim Sim ride into China Town. We should make it happen.
    "Riding bikes on the street is the fuggin jam!" Juvi-Kyle

  13. #13
    Senior Member
    Join Date
    Jun 2004
    Location
    So Cal
    My Bikes
    peugot fixed, Steelman cyclocross, Yeti Kokopelli
    Posts
    416
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I am game. I live in El Sereno though.

  14. #14
    Lunigma
    Guest
    Quote Originally Posted by sat_cycle
    man, you should just carry a nice selection of 8 or so cogs in your jersey pocket and a wrench, and then stop as needed when the terrain changes and swap out the best one. It would take practically no time at all and you'd have a sweet set of gear ratios to match any terrain!

    that'd be almost as good as having a rear derailler . . .
    there is no real change in terrain going up there, just getting there from my starting location, which i don't have to worry about. thanx

  15. #15
    Lunigma
    Guest
    Quote Originally Posted by junioroverlord
    I agree with the Fixer on this one. There shouldn't be a real need to swap out anything on your way up there. I ride 41x14 and I can make it up there no problem.

    The real issue here is, how do you ride fixed in Highland Park and I not know who you are? I used to live there like six months ago and could have sworm me and my roomate were the only fixed riders in the area. Wierd.
    what no way! i didn't think there were any fixie riders in highland park! everytime i ride there i feel so special for being on the only fixie. I actualy live in south central los angeles. the ghetto is great for fixed riding, there aren't hills for miles, and you don't have to worry about getting your ride stolen cause everyone here rides bmx, cruisers, and mountain bikes. they think of my bike as one of those "old ugly ten speeds" haha. i ventrure over to highland park to ride with friends in the area

  16. #16
    Lunigma
    Guest
    Quote Originally Posted by flythebike
    GET A ROAD BIKE. YOU ARE ALLOWED TO OWN MORE THAN ONE BIKE. FIXED GEAR LOVE IS NOT A MONOTHEISTIC RELIGION (at least not to me).There just gets to be a point where it gets ridiculous.
    i have a geared bike, and 80's lotus, and ive already done this route on gears, too easy, no challenge

  17. #17
    Lunigma
    Guest
    Quote Originally Posted by The Fixer
    I regularly ride my Steamroller geared at 46/18 to the top. There's really no need to flip your wheel, it's not a long or steep climb. 69 inches is plenty low enough to take you to the top. The observatory itself is still closed due to renovations but the road to the top remains open. Avoid weekends due to tourist traffic near the top. Have fun....keep your bike simple and leave your chaintool, extra chainring and cog at home...
    yeah i know it's still closed but it's still nice going up there. if you say 69 is good enough, then ill do it! it doesn't hurt to try. i will be carrying a 17T cog on my flip side though, just in case im not as tuff as i imagine i am hehe thanx for all the help everyone.

    REGARDS

    UP THE BIKE PUNX!

  18. #18
    Senior Member Kiecker's Avatar
    Join Date
    Mar 2005
    Location
    Redondo Beach
    My Bikes
    '05 Lemond Fillmore, '05 Surly 1x1, '04 Fuji Track Pro, '02 Specialized Stumpjumper, '92 GT Tequesta
    Posts
    533
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by sloppy robot
    one of my favorite rides in l.a. is to bike riverside into the park.. and keep going until the train museum.. then staying in the park past forest lawn..up the hill to the top and turnning onto the closd road... ride that to the top behind the hollywood sign and if you go down straight youll end up at the observatory..no need for all the gear fussin.
    I was out for a pleasure ride today and ended riding up to the conservatory. Yes the conservatory is still closed. Funny thing is I went back and read this thread and realized that I did the exact route sloppy robot talked about but in reverse. I went up Vermont to the conseratory, then back down just a little bit until the road closed sign and then kept climbing. I then stayed left and went down the hill to a train station park something or other. Followed the road all the way around the park to Riverside and then rode back to Redondo Beach. I'm not a huge fan of going down hills on my fixed gear, but today it was really fun. Can you say CLOSED COURSE?? All you had to do is look out for debris the rains brought and other bikers and hikes going up. What a blast with all the switch backs. I'm curious to see where the other road goes to. Btw, 44x16. Don't over think it, just ride. Take a break if you have to. Luckily I was able to find some street vendors on the way back for water....I couldn't find any open spickets in the park.

    btw, sloppy robot it was good to meet you again on Friday night

    If you're looking for a hill to climb, try Fargo......30+ percent grade. In fact there's a ride next Saturday for it. I'll start a new thread.
    Last edited by Kiecker; 01-08-06 at 10:27 PM.

  19. #19
    Senior Member juvi-kyle's Avatar
    Join Date
    Feb 2005
    Location
    LA
    My Bikes
    track bikes, etc
    Posts
    2,915
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Mark, that ____ was like three months ago, I Love It. Hill climbs this week. And who is this Sloppy Robot kid, I called him once he never called me back he doesnt really exist, it is shants.

  20. #20
    Better than you since 83! junioroverlord's Avatar
    Join Date
    Oct 2004
    Location
    Up a big F'ing Hill
    My Bikes
    Fixed Gear 79 Schwinn Sprint
    Posts
    1,117
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by juvi-kyle
    Mark, that ____ was like three months ago, I Love It. Hill climbs this week. And who is this Sloppy Robot kid, I called him once he never called me back he doesnt really exist, it is shants.
    He exists. I've seen em with me own two eyes. But then again when's the last time you saw me. I might be shants.
    "Riding bikes on the street is the fuggin jam!" Juvi-Kyle

  21. #21
    Senior Member juvi-kyle's Avatar
    Join Date
    Feb 2005
    Location
    LA
    My Bikes
    track bikes, etc
    Posts
    2,915
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by junioroverlord
    He exists. I've seen em with me own two eyes. But then again when's the last time you saw me. I might be shants.

    I'll see you Sun.

  22. #22
    cab horn
    Join Date
    Jun 2004
    Location
    Toronto
    My Bikes
    1987 Bianchi Campione
    Posts
    28,295
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    38.7 gear inches... better too low than too high.

  23. #23
    like, really sloppy sloppy robot's Avatar
    Join Date
    Jan 2005
    Location
    calipornia
    Posts
    2,285
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by juvi-kyle
    Mark, that ____ was like three months ago, I Love It. Hill climbs this week. And who is this Sloppy Robot kid, I called him once he never called me back he doesnt really exist, it is shants.
    sloppy is retired.. just steven now.. didnt i meet you on friday.. drunk at the taco truck? sorry i didnt call back.. im good at that.

  24. #24
    Senior Member juvi-kyle's Avatar
    Join Date
    Feb 2005
    Location
    LA
    My Bikes
    track bikes, etc
    Posts
    2,915
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by sloppy robot
    sloppy is retired.. just steven now.. didnt i meet you on friday.. drunk at the taco truck? sorry i didnt call back.. im good at that.

    You have Ciocc, if so we met. And dont worry about not callin, it happens. We should ride sometime.

  25. #25
    Better than you since 83! junioroverlord's Avatar
    Join Date
    Oct 2004
    Location
    Up a big F'ing Hill
    My Bikes
    Fixed Gear 79 Schwinn Sprint
    Posts
    1,117
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by juvi-kyle
    You have Ciocc, if so we met. And dont worry about not callin, it happens. We should ride sometime.

    Yeah...you never call me...bish...oh and the number you gave me...is wrong. So take that.
    "Riding bikes on the street is the fuggin jam!" Juvi-Kyle

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •