Fixed Super Light Super Safe

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  • Lovely, but max rider weight is 85kg

    actually .. it's 110kG rider + bicycle + luggage for the SP or 130kG for the 'std heavy' verson .. or you could go to AX LIghtness Helios which has a rider weight limit of 110kG ;)

  • The Scapula comes in 3 variations .. ignore Posh Bikes, some parts on the site are not made anymore !

    Scapula - standard version
    Scapula SP - lightest version
    Scapula F - integrated brake version

    The AX Lightness comes in 2 variations

    Helios - standard version
    Ax 6000 - lightest version

  • So their LIGHTEST does 110 and bags?!?

  • I'm a touch over 85Kg and would'nt say no to a SP. My bank account would though. I guess its going to cost something like £650. The Ritchey WCS cost less than £290, and is only 30 something grams heavier. Thats over £10 per gram FFS.

    http://www.ribblecycles.co.uk/sp/road-track-bike/WCS-Carbon-Road-Forks/RITCFORR280?utm_campaign=Googlebase&utm_medium=organic&utm_source=Googlebase

  • Anyone know what a planet x tt fork weighs? I had one on my kilo bike for a bit and it was seriously light..wish I'd weighed it now
    For £ per gram saved they have to be pretty good!

  • The lightest SP does 110kg total eg you, the bike and anything you carry .. but as Smallfurry said you're stepping into serious weenie money €768 euro and 6 weeks normal for them to be made. The AX are lighter but a similar price.

    The Ritchey stuff is overlooked but WCS stuff is pretty light weight.

  • <300g EC90SLX at £250 looks like a weight-weenie bargain:
    http://www.slanecycles.com/easton-ec90-slx-road-fork-p-21919.html

    I'd also consider a Look HSC5SL; 300g including the integrated crown race, about £320

  • The Ritchey stuff is overlooked but WCS stuff is pretty light weight.

    I want the stem and forks for my BMC. Would take it below 6.5Kg. Which is mad light for the stiffness. Easton matches better though, as the frame is Easton carbon/alu. Bit worried about losing the amazing cornering though.

  • The SLX is 'floppy' I've been there .. mine was 298gram cut 230mm steerer

  • In the name of the quest I have ordered

    1. Kitchen Scales
    2. Hanging Scales
    3. Torque wrench kit

    And so the process, however slow right now, has started.

  • Carbon assembly paste.

    Get some.

  • Iain, did you get a torque wrench that has a certificate of calibration?

  • I need a torque wrench kit, which one you go for, they're all a bit unattractively expensive

  • Carbon assembly paste.

    2nd that .. especially for weenie parts with low torque ratings

  • they're all a bit unattractively expensive

    But cheap after you hear an expensive carbon part cracking as you guessed the torque and went to far .:

  • But cheap after you hear an expensive carbon part cracking as you guessed the torque and went to far .:

    ↑This

    If you're spending £500+ on fork/bars/seatpost, why wouldn't you protect that investment with £80 spent on a decent torque wrench?

  • I need a torque wrench kit, which one you go for, they're all a bit unattractively expensive

    I like the Norbar range- I have the TT20 (1-20Nm) and am waiting on deliver of a TT100 (20-100Nm).

  • Iain, did you get a torque wrench that has a certificate of calibration?

    But cheap after you hear an expensive carbon part cracking as you guessed the torque and went to far .:

    ↑This

    If you're spending £500+ on fork/bars/seatpost, why wouldn't you protect that investment with £80 spent on a decent torque wrench?

    Oh...

    Excuse my ignorance.

    I got this: [ame="http://www.amazon.co.uk/gp/product/B001QWMOZK/ref=oh_details_o00_s00_i00"]http://www.amazon.co.uk/gp/product/B001QWMOZK/ref=oh_details_o00_s00_i00[/ame]

    Should I cancel the order and go for something else? Suggestions?

  • Norbar 1/4" or 3/8"???

    Im happy to pick the TT100 over the TT20 as the difference in price is only about £6.

    I picked it based on the fact its Bike related torque wrench. I really dont want to ruin any carbon.

  • Should I cancel the order and go for something else?

    Review says it has calibration certificate, so that should keep the nerds quiet. In practice, I doubt that accurate calibration is that big a deal - no manufacturer in their right mind would ship components which didn't work just fine at specified torque + 25%. Bolt tension is what breaks stuff, and the torque/tension curve moves more than that depending on lubrication conditions anyway.

    If the spec says 4Nm, the importance of a torque wrench of any kind is to get it somewhere between 3Nm and 5Nm, and not the 2-10Nm you'd use if you just tried to guess it by feel.

  • whats the weight difference between a 3/32s drivechain against the equivalent 1/8th?

    and likewise how much weaker is it? particularly the actual chain.

  • I guess a better question would be does anyone know of a table listing each chain with its ultimate tensile strength

  • I have a £13 jobbie at the moment. 5Nm should stop me crushing anything.

    http://superstar.tibolts.co.uk/product_info.php?cPath=36&products_id=387

    I was going to upgrade to this
    http://superstar.tibolts.co.uk/product_info.php?cPath=36&products_id=550

    But my tool budget got eaten by the need for a BB chasing tool.

    The only place I have any carbon clamped is on the EA90 bars on my BMC. So the little torque key works well.

  • whats the weight difference between a 3/32s drivechain against the *equivalent *1/8th?

    If you really mean direct equivalents, not much, as they are the same sets of plates joined together by shorter rollers and pins, e.g.
    Wippermann 1R8 443g/96 = 4.6g per link
    Wippermann 7R8 440g/110 = 4.0g per link
    The wide chain is 15% heavier.

    The reason why people use 3/32" on weight weenie single speed/ fixed bikes is to allow the use of super light dérailleur chain, e.g.
    Wippermann 9S1 274g/110 = 2.5g per link

    Ultimate tensile strength of a new chain is easily the least important number, unless you're using it in lifting gear.

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Fixed Super Light Super Safe

Posted by Avatar for ChainBreaker @ChainBreaker

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