Thin stamped cogs and ti freehubs- Mtbr.com
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  1. #1
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    Thin stamped cogs and ti freehubs

    I know that thse thin, stamped steel cogs chew up aluminum freehub bodies, but would it be unsafe to use one on the ti freehub on my Hadley? I just need a 16t cog on my wheel for a gravel race.

  2. #2
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    How much is a replacement Ti freehub? How much is a widebase cog?

    That's your real question.

    Personally I won't put the stamped cogs on even a steel freehub.
    As little bike as possible, as silent as possible.
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  3. #3
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    The issue is that I have a gravel race on Saturday and I don't have time to buy a 16t wide base cog. I cuould use a 38t ring but it's too big to fit on my ROS with the EBB anywhere near its current position. I am trying to avoid screwing up the saddle-BB offset position even more than it already is. So instead of using a 38/20 gear, I'd like to use the 34 I have on there now with a 16t cog. I got the frame last week and Castel Grind is in two days, so I did not have time to think this through.

    I doubt anyone has one in stock locally and my work hours overlap the business hours of every shop in town.

    Then again, 34/16 might force me to rotat the EBB forward anyways, making this question irrelevant because in that case. I might as well use the big ring.

    Good point though, probably not worth the risk to my hub. If I have to screw up my bike fit to do it, hope my knees survive, though.

  4. #4
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    Any SS buddies in the area who could lend you a cog? FWIW I wouldn't take the risk of a cheap cog eating my freehub.

  5. #5
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    Nevermind, non-issue. I had read somewhere that a 38t chainring will only clear the yoke on my ROS in the forward position on the EBB. I just tried it and the 38t ring clears the yoke all the way around the EBB. So I'll use one of the wide base cogs I have with the big ring and not worry about it.
    Last edited by mack_turtle; 03-30-2017 at 07:06 AM.

  6. #6
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    Gravel race on a ROS9 is a more intriguing story!
    Bikes, lots'o bikes

  7. #7
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    The whole bike is not even a pound heavier than the Soma Juice that I rode on my last 100k gravel race. I don't see what the big deal is.

  8. #8
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    Well, it's not all about weight. I was picturing you out there with a 140mm fork and 2.4" tires all around.
    Bikes, lots'o bikes

  9. #9
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    Nah, it's set up as an XC bike already. Narrower tires, 2.0 Thunder Burts and change thegearing from 34/21 to 38/19 or 20. Hydration bladder in a frame bag. TOGS, 120mm Reba. That's "gravel mode." All I have to do is swap the cog, chainring, and tires, really.

    A rigid fork of the appropriate length would be cool, but not worth the $$ for the occasional gravel race.

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