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Thread: Ask Scrod

  1. #8151
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    Hey Scrod,
    I've read a few threads about Leader 725 frame sizing, and I'm still not sure which size I should get.
    I read you're 5'11 and ride 55cm for the 725, and you have decently long arms. Another member said he had a 34" inseam and also rode the 55.

    I am:
    6' tall
    32.5" inseam
    14.75" forearm
    27.5" arm

    Deciding between 55cm and 58cm 752 Leader, what do you think? I've used the bike fit calculator linked by Jaytron but it tells me I should go with a 54cm tt length, which I find off(?)

    Please let me know what you think, thank you so much!

  2. #8152
    Grumpy Old Bugga europa's Avatar
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    Quote Originally Posted by dimethi View Post
    Hey Scrod,
    I've read a few threads about Leader 725 frame sizing, and I'm still not sure which size I should get.
    I read you're 5'11 and ride 55cm for the 725, and you have decently long arms. Another member said he had a 34" inseam and also rode the 55.

    I am:
    6' tall
    32.5" inseam
    14.75" forearm
    27.5" arm

    Deciding between 55cm and 58cm 752 Leader, what do you think? I've used the bike fit calculator linked by Jaytron but it tells me I should go with a 54cm tt length, which I find off(?)

    Please let me know what you think, thank you so much!
    If you're currently riding a bike, particularly one that fits you ie you're comfortable on it, measure the top tube, and the next, and the saddle to bar drop, then give Scrod those measurements, it'll help him give a better answer to your question.

    BTW, measurements of your body can be really misleading because they don't take into account your own flexibility, strength and riding style. For example, my hyper fit son is much the same size as me but sets up his bike very differently to his fat old dad.
    I had a good bike ... so I FIXED it

  3. #8153
    Senior Member rex615's Avatar
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    Quote Originally Posted by europa View Post
    BTW, measurements of your body can be really misleading because they don't take into account your own flexibility, strength and riding style. For example, my hyper fit son is much the same size as me but sets up his bike very differently to his fat old dad.
    So true. My son and I are almost the same height and proportions but I don't enjoy riding my son's bikes because they are set up so aggressive and with super hard skinny tires. He also tends to buy his frames a size smaller than i do so they "fit" him.

  4. #8154
    Veteran Bastard Scrodzilla's Avatar
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    Quote Originally Posted by dimethi View Post
    Hey Scrod,
    I've read a few threads about Leader 725 frame sizing, and I'm still not sure which size I should get.
    I read you're 5'11 and ride 55cm for the 725, and you have decently long arms. Another member said he had a 34" inseam and also rode the 55.

    I am:
    6' tall
    32.5" inseam
    14.75" forearm
    27.5" arm

    Deciding between 55cm and 58cm 752 Leader, what do you think? I've used the bike fit calculator linked by Jaytron but it tells me I should go with a 54cm tt length, which I find off(?)

    Please let me know what you think, thank you so much!
    Leader frames are notoriously long and low, as they were developed to be ridden on the street with no toe overlap.

    As europa said, the most important measurement is top tube length. If you currently have a bike and it fits you, measure your top tube (from the center of the head tube to the center of the seat tube) and pick the size with the closest top tube length.

    If you don't currently have a bike, do the fit calculator again. If you're 6" tall and your results put you on a frame having a 54cm top tube, you may have something wrong (or you have arms like a T Rex). For the record, "inseam" does not mean your pants size.
    Last edited by Scrodzilla; 03-07-14 at 09:28 AM.

  5. #8155
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    Quote Originally Posted by europa View Post
    If you're currently riding a bike, particularly one that fits you ie you're comfortable on it, measure the top tube, and the next, and the saddle to bar drop, then give Scrod those measurements, it'll help him give a better answer to your question. -snip-
    Quote Originally Posted by rex615 View Post
    So true. My son and I are almost the same height and proportions but I don't enjoy riding my son's bikes because they are set up so aggressive and with super hard skinny tires. He also tends to buy his frames a size smaller than i do so they "fit" him.
    Thanks for all the responses you guys! I'll post back with the measurements of my current bike in a bit--morning classes keep me busy.
    Should I also be concerned about standover height?

    Quote Originally Posted by Scrodzilla View Post
    If you're 6" tall and your results put you on a frame having a 54cm top tube, you may have something wrong (or you have arms like a T Rex).

    & haha scrod, yeah I thought something was off when I saw the results. I'll re-measure and post what I get as well.

  6. #8156
    Veteran Bastard Scrodzilla's Avatar
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    Standover height means nothing. If you are riding a bike with a suitable top tube length, standover height will be in the correct range.

  7. #8157
    Goes to 11. striknein's Avatar
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    Quote Originally Posted by Scrodzilla View Post
    Standover height means nothing. If you are riding a bike with a suitable top tube length, standover height will be in the correct range.
    God I wish that was always true. My nuts rest on all the top tubes.
    Quote Originally Posted by Nagrom_ View Post
    I actually just run calipers. Levers are for scrubs.

  8. #8158
    Veteran Bastard Scrodzilla's Avatar
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    Me too but it's not a big deal because I spend a lot more time riding my bikes than standing over them resting my junk on the top tube.

  9. #8159
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    Measurements!

    My $200-bought-off-craigslist-with-little-research beater Mizutani Super Seraph has a top tube length of 55cm, but it does feel like the bars are pretty close to me.

    (I bought my current bike over summer thinking I wouldn't want to spend much money on a bike for college, but I've changed my mind after investing more time in biking.)
    If it helps with sizing, the bike has 170mm Sugino RT cranks.

    Entered more accurate measurements into the Bike Fit Calculator, was suggested to have 55.7-56.1cm top tube. Some more details if anybody is interested

    Looks like I'll be going for the 55cm then. Is anything else significant for sizing?
    (The stupid part of me still has doubts since the number 55 is different than the regular 57/58cm numbers I've been reading about for people around 6')
    Last edited by dimethi; 03-07-14 at 01:51 PM.

  10. #8160
    Veteran Bastard Scrodzilla's Avatar
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    As I said earlier, Leader frames are longer and lower than most other frames.

    I've ridden a couple of 58cm frames that have fit me well, while my Leader is a 55.

  11. #8161
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    Yeah, I've decided to go with the 55cm frame.
    I'll be browsing your shop for a couple other components as well, thanks for the help!

  12. #8162
    Veteran Bastard Scrodzilla's Avatar
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    No prob!

  13. #8163
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    Ask a shop owner I suspect I already know your answer, but for a casual mechanic who happens to be poor, do you think this is worth buying? Thanks in advance. http://www.amazon.com/BIKEHAND-Compl...cycle+tool+kit

  14. #8164
    Warning:Annoying to jerks RaleighSport's Avatar
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    Quote Originally Posted by striknein View Post
    God I wish that was always true. My nuts rest on all the top tubes.
    Me too.. cept my 725 and my tiny bikes.
    “Let me never fall into the vulgar mistake of dreaming that I am persecuted whenever I am contradicted.”


    ― Ralph Waldo Emerson, Emerson in His Journals

  15. #8165
    Veteran Bastard Scrodzilla's Avatar
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    Quote Originally Posted by jalopyman View Post
    Ask a shop owner I suspect I already know your answer, but for a casual mechanic who happens to be poor, do you think this is worth buying? Thanks in advance. http://www.amazon.com/BIKEHAND-Compl...cycle+tool+kit
    It seems like a decent kit and it's reasonably priced.

  16. #8166
    old legs
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    Quote Originally Posted by Scrodzilla View Post
    It seems like a decent kit and it's reasonably priced.
    I was thinking that too....it took me a while to collect most of those tools

  17. #8167
    Veteran Bastard Scrodzilla's Avatar
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    It's missing a few things crucial for riding fixed (chainwhip/lockring tool) and has a bunch of stuff you'll most likely never use but yeah, buying all that stuff separately would add up to much more than $125.

  18. #8168
    sea foam green nelsonfung21's Avatar
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    what other choices of crankset besides sugino messengers and omniums at the same price level?
    Ive done trying omnium on my bike and it didn't fit.

  19. #8169
    Veteran Bastard Scrodzilla's Avatar
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    IMO your bike would look great with IRD Defiants on it.

  20. #8170
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    Hey Scrod, which measurements determine the proper crankarm length for a particular person?

  21. #8171
    Senior Member Philasteve's Avatar
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    Quote Originally Posted by jalopyman View Post
    Ask a shop owner I suspect I already know your answer, but for a casual mechanic who happens to be poor, do you think this is worth buying? Thanks in advance. http://www.amazon.com/BIKEHAND-Compl...cycle+tool+kit
    I bought something similar for around the same price, along with a specialty tools here and there. And the kit plus the few tools I bought along the way have saved me a lot of money in the past 3 years. Oh yeah and a fair warning, the tools in my kit aren't the best quality and a few broke over time. Just replace them with park or something of better quality if that happens./ NOT SCROD
    Last edited by Philasteve; 03-08-14 at 04:14 PM.

  22. #8172
    Senior Member DarkSeraphim's Avatar
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    After recently replacing the stock 103 BB on the Kilo with a 107 I feel like my cranks are out super wide. Been thinking about just upgrading to S300's. Is the BB wider than 103? With the external bearings and all...
    I love riding and....Hey Look, Shiny!

  23. #8173
    Veteran Bastard Scrodzilla's Avatar
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    Quote Originally Posted by DarkSeraphim View Post
    After recently replacing the stock 103 BB on the Kilo with a 107 I feel like my cranks are out super wide. Been thinking about just upgrading to S300's. Is the BB wider than 103? With the external bearings and all...
    Cranksets require specific length BB spindles for a reason. Using something other than the recommended BB will obviously throw off your chain line and Q factor.

    The Spindle on GXP cranksets is attached to the drive side crank arm so what you're asking is a non-issue.

  24. #8174
    ΦφΦφΦφΦφΦφ Dannihilator's Avatar
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    Quote Originally Posted by Scrodzilla View Post
    IMO your bike would look great with IRD Defiants on it.
    I second this IRD makes some good stuff.
    Strike like an eagle and sacrifice the dove.
    Words and Stuff.

  25. #8175
    Veteran Bastard Scrodzilla's Avatar
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    Quote Originally Posted by Krull06 View Post
    Hey Scrod, which measurements determine the proper crankarm length for a particular person?
    There's a whole bunch of jibber-jabber about the subject to be found on the Googles (some of which makes perfect sense) but a lot of it comes down to personal preference.

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