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  1. #1
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    Hope Pro 4 Trial/SS Lockring?

    I'm getting a new Hope Pro 4 Trial/SS rear hub for a new wheelset for El Mariachi SS. In photos they appear to come with spacers, but I've yet to see a photo of a lockring. Can any of you tell me if the hubs come with a lockring, and if not, can you recommend one? Thanks!

  2. #2
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    Same boat but decided on the 10x135 Thru-bolt, instead for future expansion/conversion options. As I recall in my researching the Trials/SS hub, it does NOT come with a lock ring but any Shimano freehub compatible lock ring will work. IIRC, I took that info from Chain Reaction's Q&A section under the product description and the answer came from a CRC Rep. You might want to check my work, though. I forget sh*t all the time.

  3. #3
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    Wonderful, thanks! That's actually the one I got too, because it's going on an El Mariachi SS. Specifically, this hub: Hope Pro 4 MTB Rear Hub - Single Speed-Trials | Chain Reaction Cycles

    I was just looking in the basement and I've got some Shimano Centerlock brake rotor lockrings, which I think are the exact same part. Same splining, threading, all. So, I guess that solves that problem!

    Thanks for letting me know what you found. I'm really looking forward to these hubs.

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    I ended up not doing the Trials/SS hub and went with the standard size freehub. The Trials/SS hub is built wider and has the narrower freehub and it's not convertible due to it's special width. I may want to put a 10/11 spd cassette on this bike in the future so I'm saving myself from having to build another wheel to do that. I'll run a Surly spacer kit on the freehub as long as it's set up SS.

    The nice thing about the Trials/SS hub is it gets the 88 POE but they're getting that by opposing pawls which is a mod I did to one of my original 24 POE Pro2's a few years ago making it a 48 POE. It never failed me after serious hammering so I'll likely do it to the new Pro4 once I get it.

  5. #5
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    Ahh, that makes sense. For me this is going on an El Mariachi SS, which doesn't have cable stops, so it's almost guaranteed to stay as an SS. I've got a Ti version as well and that's my geared HT.

    The 88 POE is part of the reason I went with this, but the other is the symmetric flanges which should make for a nice, symmetric wheel build.

  6. #6
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    Quote Originally Posted by Oh My Sack! View Post
    I ended up not doing the Trials/SS hub and went with the standard size freehub. The Trials/SS hub is built wider and has the narrower freehub and it's not convertible due to it's special width. I may want to put a 10/11 spd cassette on this bike in the future so I'm saving myself from having to build another wheel to do that. I'll run a Surly spacer kit on the freehub as long as it's set up SS.

    The nice thing about the Trials/SS hub is it gets the 88 POE but they're getting that by opposing pawls which is a mod I did to one of my original 24 POE Pro2's a few years ago making it a 48 POE. It never failed me after serious hammering so I'll likely do it to the new Pro4 once I get it.
    What is the opposing pawls mod?
    Did you end up doing it to the Pro 4?

  7. #7
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    Shortening 2 of the pawls so they grab in between (doubling the engagement points, but with 2 pawls instead of 4). The trials/ss freehubs use 4 matching pawls, but 2 have the location offset to accomplish the same thing.
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  8. #8
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    Ah, found it:
    https://forums.mtbr.com/wheels-tires...oe-843581.html

    I'll have to try it on a rainy day.

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