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  1. #1
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    Thread holding in Surly Ogre brake bosses.

    Hi,
    I want to remove the brake bosses and replace with stainless steel allen-key head bolts like the rest of my forks "warts".
    I went to the fasteners (hardware store) today and the young fella couldn't identify the thread used on the bosses which I had the foresight (I thought) to take in with me in case of any issue.
    I had to leave empty handed.
    Does anyone here know for definite what thread Surly uses for attaching their Ogre brake bosses to their frames?
    Cheers for any help on this.

  2. #2
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    No bites?
    Well not a problem.
    I just got an email from Ben Oliver at Surly kindly informing me that M10x1mm threading are the fittings Iíll need to plug those holes.
    I got a fast response to my inquiry from Surly, which made my day, unlike many manufacturers I've had to contact over the years with technical questions.

  3. #3
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    Hi rifraf, I was looking to do the same thing. Do you know if it's the same size thread for the fork bosses too?

  4. #4
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    Quote Originally Posted by BareNecessities View Post
    Hi rifraf, I was looking to do the same thing. Do you know if it's the same size thread for the fork bosses too?
    Good question BareNecessities as when I asked Surly I only mentioned the forks.
    The answer to your question is yes as that is the size for the fork bosses.
    Turns out its a painful choice for consumers of the Surly product as its not easy to get a well fitting plug.
    All of the available plugs I've seen so far use a thread pitch of 1.25mm where Surly uses 1mm.
    Theres no decent machine shops near where I live so I'll be trawling the net for someone whose solved this with something other than silicon or a rubber or plastic plug.
    I really would like a stainless steel allen-key headed bolt to match the rest of the "warts" on my forks.

  5. #5
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    Try McMaster Carr ... they'll hook you up. Order 1 or 1000. No minimum.

  6. #6
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    Cheers for the response. I guess I'll have to remove both a frame and a fork boss ( which I'll be doing anyway ) then compare the two.

    I suspect they wont be the same

  7. #7
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    Most bike shops will have brake boss plugs. They're available from Problem Solvers and the like.

  8. #8
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    Quote Originally Posted by wschruba View Post
    Most bike shops will have brake boss plugs. They're available from Problem Solvers and the like.
    So far, all the readily available brake boss plugs I've found online, including Problem Solvers, use a thread pitch of 1.25mm which is not suitable for a Surly. Surly uses 1mm for their frames with removable brake bosses. 1mm is not a common pitch it appears. The easy answer is the plastic or rubber bungs/boss plugs but they are not something that would ever be first choice on my bike. I'll pay what I have to to get a stainless allenkey head bolt to match the rest of the warts on the fork even if it means paying over the odds for a machine shop to make me some.

  9. #9
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    Assistant Manager and Body Geometry Fit Technician; Gator Cycle

  10. #10
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    Been looking around hardware stores/internet for a fine thread M10x1 nylon bolt. That's what I'd ideally like - regular bolts are available and pretty big! For the time being -- no brake bosses...

  11. #11
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    Name:  aae6bdde-b3c4-4922-a56d-ef24a256ea9b_300.jpg
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    I used a couple of these in stainless steel from Ace Hardware, it was not on a surly fork though as I use a different fork but keep an eye for these.
    Mr. Krabs: Is it true, Squidward? Is it hilarious?

  12. #12
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    Quote Originally Posted by highplainsrider View Post
    Been looking around hardware stores/internet for a fine thread M10x1 nylon bolt. That's what I'd ideally like - regular bolts are available and pretty big! For the time being -- no brake bosses...
    I think your definition of "big" and mine are very different. Out of curiosity did you actually click on the link I provided?

    Thread holding in Surly Ogre brake bosses.-img_20151012_094946.jpg

    Thread holding in Surly Ogre brake bosses.-img_20151012_095008.jpg
    Assistant Manager and Body Geometry Fit Technician; Gator Cycle

  13. #13
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    Madison sell these in the uk. They are alloy and will work on all Surly canti studded frame and forks...

  14. #14
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    [QUOTE=mikespug;12250454]I think your definition of "big" and mine are very different. Out of curiosity did you actually click on the link I provided?

    I sure did! Big = Heavy. They look great! Just no need for iron non-structural stuff..

  15. #15
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    [QUOTE=highplainsrider;12255973]
    Quote Originally Posted by mikespug View Post
    I think your definition of "big" and mine are very different. Out of curiosity did you actually click on the link I provided?

    I sure did! Big = Heavy. They look great! Just no need for iron non-structural stuff..
    They weigh .3 oz. That's "point three" ounces. Ounces! You ride an Ogre.

  16. #16
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    [QUOTE=cassa89;12256410]
    Quote Originally Posted by highplainsrider View Post

    They weigh .3 oz. That's "point three" ounces. Ounces! You ride an Ogre.
    Yea, yea. Grease fittings have m10x1 fine threads. Not interesting enough,, still looking

  17. #17
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    [QUOTE=highplainsrider;12271274]
    Quote Originally Posted by cassa89 View Post

    Yea, yea. Grease fittings have m10x1 fine threads. Not interesting enough,, still looking
    I bought 6 pairs of those Origin8 boss plugs for my 2 Ogres and a Monkey. Perfect.
    Yeah, they weigh nothing. Its laughable to even mention the weight. Its a Surly.

  18. #18
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    [QUOTE=manida;12354195]
    Quote Originally Posted by highplainsrider View Post

    I bought 6 pairs of those Origin8 boss plugs for my 2 Ogres and a Monkey. Perfect.
    Yeah, they weigh nothing. Its laughable to even mention the weight. Its a Surly.
    I spent all my money on fenders, it was necessary. The brake boss plugs look good and I will order 4 soon.
    The weight concern has more to do with how I store my bike: hanging from the front rim. If it ever falls and tips over backwards irreplaceable things will get broken!

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