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  1. #1
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    Idea! Rohloff Strip to Axle and Rebuild Videos (English)

    Inspired by the spanish version recently seen on an internet near you, I decided to dive in and have a look.

    Strip to axle:
    http://www.youtube.com/watch?v=lS6kj8g5On8

    Build from axle up:
    http://www.youtube.com/watch?v=Y-1iPbYra58

    (Less Interesting; I was testing to see what components were in play during coasting)

    Powering the freewheel with drill and belt drive:
    http://www.youtube.com/watch?v=FGnGbsA9OJI

    Another drill/belt drive view:
    http://www.youtube.com/watch?v=ZK7eZcSEouY

    Listening to the high range/low range noise difference while belt driven (low range is the noisy one):
    http://www.youtube.com/watch?v=7kdppHAOmUQ

    Also a slideshow:
    http://www.flickr.com/photos/climber...35769545/show/

    Craig

  2. #2
    PRETENDURO
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    HOLY CRAP AWESOME!!! Donít own a Rohloff, but this is really nice to know information!
    QUOTE from MTBR.COM: You have given Brewtality too much Reputation in the last 24 hours, try again later.

  3. #3
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    Good job!

    That's quite a first post Craig. Nice.

    UR

  4. #4
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    Glad you guys enjoyed the video. I've known about mtbr for awhile but only used it for gear reviews etc. I was glad to find the forum, and even better, a discussion specifically for IGH nerds like me.

    Got some great news today. My wife (who has teased me for years about paying so much for a single bicycle component) came up out of the blue and said "I want a Rohloff too".

    While I am happy for her and think it is cool she'll have one on her bike, the coolest thing is that I will never have to tune her bike before every ride.

    She also said I could have the new one and she'd take mine, but I then had to explain how they get better with age, and I'd be happy to keep my "worn-in" SN 7xxx hub.

  5. #5
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    Cool. I never made videos when I serviced my hubs, but then I didn't go as far as you or Tunin
    Quote Originally Posted by Climbercraig66
    Got some great news today. My wife (who has teased me for years about paying so much for a single bicycle component) came up out of the blue and said "I want a Rohloff too".
    I switched my wife to a Rohloff over 5 years ago, she was also a bit sceptical about the cost, but after she adapted and learned how to shift it, she said "Why do people use deraileurs?". And she did get my primo 10-year old unit, and I had to break in a new one.

  6. #6
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    Thanks for calling it "servicing", but we all know it's just glorified bike porn. Curiosity is the only reason 99% of Rohloff owners would ever have to crack the egg.

    And I guess the second part of the conversation between me and wife is important, so I'm not the jerk husband who subjected his wife to breaking in a nice, tight new hub:

    It all came down to fashion. She didn't want my powdercoat red hub on her bike, and thinks brushed silver or anodized black would match better.

    I wonder if old internals would fit in a new anodized shell? I remember something I read about Rohloffs a while back, in that they were engineered to always be backwards or upgrade compatible.

  7. #7
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    Craig,
    I am sure your wife willl prefer the cool, laser etched, graphics on a new hub to the boring old Speedhub sticker on yours.
    Another reason for you to stick with the old hub!
    Julian.

  8. #8
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    These videos are terrific, especially the (dis)assembly ones. The fact that vast majority prefers lady GaGa over them only means they have priorities ordered wrong!

    Your understanding of what does what in the Speedhub is just as impressive too.

    Do the planet gears on the third reducing gearset also have roller bearings, as the planet gears of the set #1 and #2, as it can be seen here: http://www.greenspeed.com.au/OldWebPics/Rohloff768.jpg ? These gears carry very high load as they output directly to the hub hell.

  9. #9
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    Thanks. I have spent way too much time studying this. Even with the hub apart, not all things are obvious and I spent plenty of time banging my head against a wall trying to figure out the "why" in a couple of situations.

    But, once you know, and you've had your mitts on every bit and piece, the ride satisfaction becomes even greater.

    And to answer your question, yes the planets in the 3rd carrier do ride on their own individual needle roller bearing sets. The fit up, machining and tolerances are amazing. When you are disassembling, the pieces almost slide apart from each other like warm butter through your fingers.

    Entry price is steep, but a Rohloff hub, if it is for you, is truly a lifetime purchase that will after a short time, completely squash the usual budget set aside for hubs, deraileurs, cassettes, shifters and all the other bits that go with a traditional drivetrain.

  10. #10
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    Quote Originally Posted by Climbercraig66
    It all came down to fashion. She didn't want my powdercoat red hub on her bike, and thinks brushed silver or anodized black would match better.
    Oddly enough, my wife would happily ride a red powder coated hub... but not a black frame!

    Quote Originally Posted by Climbercraig66
    I wonder if old internals would fit in a new anodized shell? I remember something I read about Rohloffs a while back, in that they were engineered to always be backwards or upgrade compatible.
    I would not. My first hub was sent back to be upgraded to disc - they just had to replace the cap. However, the early hubs were hand matched, and they could not get a cap that sealed properly, even after machining a custom one (so they told me). So they sent me a new one - which I had to break in again...

  11. #11
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    Quote Originally Posted by itsdoable
    Oddly enough, my wife would happily ride a red powder coated hub... but not a black frame!
    Yeah, I thought it was weird too. She has a pink Kona and I thought the red hub would look nice on it. If anyone could stand to benefit from a new color, it would be me and my blue bike/red hub combo.
    [IMG]DSC07532[/IMG]
    [IMG]DSC03563[/IMG]


    Quote Originally Posted by itsdoable
    I would not. My first hub was sent back to be upgraded to disc - they just had to replace the cap. However, the early hubs were hand matched, and they could not get a cap that sealed properly, even after machining a custom one (so they told me). So they sent me a new one - which I had to break in again...
    That's interesting to know. I'm guessing mine qualifies as an early hub, with its 7xxx SN.

  12. #12
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    Quote Originally Posted by Climbercraig66
    Yeah, I thought it was weird too. She has a pink Kona and I thought the red hub would look nice on it.
    ... paint it pink - that would be cool!

    That's interesting to know. I'm guessing mine qualifies as an early hub, with its 7xxx SN.
    I don't know the SN of my original hub, but the replacement is 51xx...

  13. #13
    Welsh Dave
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    Awesome how-to.
    Do you have a background in anything similar. or was it all new to you? Was there a point, when getting deeper into the hub, at which you thought "Oh, ****! - no going back now!"... ?

    In my case, curiosity > technical knowledge has occasionally led to difficulties. And that terrible question of, "What are these extra bits for...?"

  14. #14
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    Quote Originally Posted by Welsh Dave
    In my case, curiosity > technical knowledge has occasionally led to difficulties. And that terrible question of, "What are these extra bits for...?"
    We all go through that stage in life. Some of us just never grew up...

  15. #15
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    Quote Originally Posted by Welsh Dave
    Awesome how-to.
    Do you have a background in anything similar. or was it all new to you? Was there a point, when getting deeper into the hub, at which you thought "Oh, ****! - no going back now!"... ?
    Thanks Welsh Dave. I do have some background with such things, as I work at a tool and die shop. I've also researched the hub to death, so was pretty confident about being able to put it back together once apart. The point of no return for me was when I removed the twin planet carrier and all 4 of the sun gears first came off with it, then proceeded to dump out onto my work bench. Timing the sun gears to the planet gears is the trickiest thing about the reassembly. When I was first attempting it I could not see the timing marks clearly and fumbled with the process for the better part of half an hour. All that fumbling around cleaned the gears enough that I was able to make out the marks and get it timed up right.

    All in all, definitely fun to play with and a good way to get your tinkering fix for a few nights. I goofed around with mine for a week or so before my wife convinced me to put it back together so we could actually go riding.

  16. #16
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    Hi Craig,
    can you tell me please,
    How to recognise timing marks and How to
    align it?
    Thank you very much
    John

  17. #17
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    The timing marks are very hard to see; at first I could not see them on my planet gears. Clean the gears, and look closely. It is a very small indentation.

    There are three planet gears, each with one timing mark. The central sun gear does not need to be timed. Arrange the gears planet carrier so that the gears resemble a triangle, tip pointing up.

    The planet gear at the top of the triangle should have its timing mark pointed straight down, toward the central axis of the planet carrier. The other two planets also point the timing mark towards the central axis of the planet carrier, but they are not directly pointed toward the central axis; they are both rotated up (or down?) by one gear tooth. The alignment of the two side planets timing marks should be a mirror-image if you were to flip one of them.

    Using this alignment, the sun gear should drop into the planets. This process is necessary for reassembly of all three planet gear sets. I would recommend mastering it using the third gear set (large sun gear that shifts the hub from the 1-7 range to 8-14 range) since this is easier than than working with the combined gearset 1 and 2.

  18. #18
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    Please see attached pic... This may be more helpful than my description.
    Attached Thumbnails Attached Thumbnails Rohloff Strip to Axle and Rebuild Videos (English)-timing.jpg  


  19. #19
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    Hi,
    I striped down and then builded hub just for cleaning.
    I was trying put planet wheels back correctly by timing marks.(by your explanation)

    All parts seems fits well.
    Hub working ok like before.

    BUT sometimes is hub missing(jump over) tooth or few tooths.
    Its feeling like a chain is jump over sprocket tooth when I push.(but is not,chains ok)
    Its happening a 3-6 times in 10 mils or sometimes not even ones.
    Untill today I made about 800 miles on it.
    It was not doing before.
    Do you thing that timing is not set up correctly?
    Thank you.

    John

  20. #20
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    John, sorry to hear you are having problems. If the timing marks are aligned then I don't see how this could be the issue. Everything I have seen and heard points to the importance of side-to-side clearances i.e. how everything fits together along the length of the axle.

    Most probable is that during reassembly, the innards and bearings of the hub shifted along the axle and now one of your drive clutches is not fully engaging at times. The Rohloff manual outlines a process for smacking the axle with a rubber hammer in a certain direction to press everything back into the right alignment.

    The only two other things I can think of is possibly any dirt, grit or shavings that were dislodged during disassembly, or maybe a shim was not installed in the correct location.

    Best of luck in solving your issue.

  21. #21
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    Another possible issue, your cog was installed backwards and thus no longer matches your chain pitch?

  22. #22
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    my chain is tensioned so much that cannot skip over sprocket tooths.
    If you think this but feeling is same..

  23. #23
    Unhinged Aussie on a 29er
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    Quote Originally Posted by UncleRobin View Post
    That's quite a first post Craig. Nice.

    UR
    Indeed, this is a hell of a first post. I only just noticed this thread, but I recently found this while searching for the internals of a Rohloff on youtube (as in, not through MTBR). Definitely a fantastic video. I think what surprised me the most was the speed that you managed to rebuild the Rohloff with; I expected it to take much longer.

  24. #24
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    Any luck John? Did you find the procedure I mentioned in the Rohloff manual?

    Hunter006, glad you liked the videos. I got pretty versed about taking it down and putting it back together before shooting the vid (back then, YouTube had 10 minute video limits). I recently took some time to watch the videos again; fun stuff. The Espanol version that inspired me was even more detailed, as he literally took every single piece apart. Disassembly of the axle seems like the trickiest bit, and I might still be in my garage if I had attempted that.

    I've seen your posts of your somewhat recent Rohloff build; sounds like you are enjoying your Rohloff and putting some good miles on it daily. I think we are in the same area and you probably ride by my place within a mile or so daily. Woo-ville over here.

  25. #25
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    Hi there, I also have some Rohloff problems.
    Mine is bought second hand of ebay. I always thought it was a bit loud. More loud than the Rohloff of my friends. (two also got a Rohloff) It sounds like there is a clutch freewheeling while peddling.
    Gears 1/2/4/8/9/11 are sounding OK.
    Gears 3/5/6/7/10/12/13/14 are making a extra sound like freewheeling.
    Does anyone have an idea what this can be?
    I opened up the hub did a complete cleanup and reassembled all gears back.
    Shifts ok but the sound still remains. Could not find any problems inside the hub whatsoever. Makes me go nuts...

    regards,
    Sjoerd.

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