I9 ss hub to 5 speed Shimano conversion (with pics!)- Mtbr.com
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  1. #1
    Gigantic Hawk
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    I9 ss hub to 5 speed Shimano conversion (with pics!)

    I have a fun competition/race this weekend where the objective is to clear as many steep, rocky tech sections with the least amount of dabs, crashes, etc. While I normally run my Canfield N9 as a single speed, there is just no way that I can be competitive with out a bit a help from some gears for this event. While there have been a few threads on throwing gears onto various ss hubs, I haven't found any I9 specific ones that actually tell/show what to do. Hopefully this will help somebody out that is wishing to do something similar.

    What I have done was to put 17, 19, 21, 24, and 28 cogs from an SLX 11 speed cassette onto my hub. Everything is shifted with an SLX derailleur and shifter.

    Parts needed (all 11 speed):
    -SLX 11-42 cassette
    -SLX gs rear derailleur
    -SLX rear shifter
    -Shimano 11 speed chain
    -1 1/4" long 4mm bolt with head of choice
    -1/2" nylon spacer
    -nut for 4mm bolt
    -lock nut for 4mm bolt
    -1/8" spacer

    Take apart the cassette and put the 28t cog onto the hub followed by the other cogs until you finish with the 17t. Place the 1/8 spacer onto the freehub, and lock everything into place with a lockring.

    Install rear derailleur, and set the outside limit screw. Use you hand to check the clearance of the top pulley and the cable mounting arm with the 28t cog. Adjust the B screw to prevent any interference.

    Install cable as typical with any rear derailleur install (I pulled the end of mine away from the wheel to keep it out of the spokes). Leave the shifter in its normal operating position, meaning smallest rear cog is also the starting point on the shifter.

    Remove inside limit screw. Install new 1 1/4" long screw all the way into the limiter hole. Thread nut onto other side of bolt, install nylon spacer, and then finish with the lock nut so that the spacer is captured between the two nuts. This is done because on Shimano rear derailleurs because the limiting tab on the parallelogram will not contact the limit screw when in the 28t cog.

    Try shifting through the gears, and tweak as needed. I filled the edge on the nylon spacer a hair to allow for perfect 28t cog alignment. I also filed the square edge off of the cable holding arm because it was whacked a few times by the chain while figuring this all out. The whole setup shifts like butter now. The front is a 30t oval AB ring for those that are curious.

    The setup.
    I9 ss hub to 5 speed Shimano conversion (with pics!)-img_20171117_194330649.jpg

    Very limited space between derailleur and 28t cog and spokes.
    I9 ss hub to 5 speed Shimano conversion (with pics!)-img_20171117_194533387.jpg

    The next 4 pics show how the inside limiter works.
    I9 ss hub to 5 speed Shimano conversion (with pics!)-img_20171117_194357791.jpg

    I9 ss hub to 5 speed Shimano conversion (with pics!)-img_20171117_194419344.jpg

    I9 ss hub to 5 speed Shimano conversion (with pics!)-img_20171117_194447254.jpg

    I9 ss hub to 5 speed Shimano conversion (with pics!)-img_20171117_194508454.jpg

    Since I run Hope brakes, I removed the shifter cover, and threw some Gorilla tape over it so I could snug it up under the brake lever.
    I9 ss hub to 5 speed Shimano conversion (with pics!)-img_20171117_194726751.jpg

    And lastly, a shot of the front ring.
    I9 ss hub to 5 speed Shimano conversion (with pics!)-img_20171117_195047562.jpg

  2. #2
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    Good to see that projects like this still happen.

  3. #3
    Gigantic Hawk
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    Quote Originally Posted by mikesee View Post
    Good to see that projects like this still happen.
    It's interesting to see the reactions of people when they see it. I'm used to people reacting to my ss. With this setup I get either "why?" or "that makes so much more sense."

  4. #4
    The perfessor
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    - nice; I, too, have an i9 SS-specific wheel and this is a project that would be great for vacation-riding with the wife, otherwise, it's SS all the way..........
    Rigid 29er Ti SS
    KHS Solo One SE 29er
    29er SC Tallboy AL
    Paketa Magnesium Road Bike

  5. #5
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    nice! I got 6 speeds out of my DT single speed hub. Sure makes those long days so much better! miss the high gears though...

  6. #6
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    this is how you get banned from the singlespeed forum. you have been warned!

  7. #7
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    Iíve been looking to do the same with my Hope SS hub. Can you put any cog on the hub? I donít know if the 11 sp hubs come completely apart. Iíd rather gear it a little higher myself. 13-24 or something like that.

  8. #8
    Gigantic Hawk
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    Quote Originally Posted by mack_turtle View Post
    this is how you get banned from the singlespeed forum. you have been warned!
    I still have 4 other ss bikes floating around.

    Quote Originally Posted by 2:01 View Post
    Iíve been looking to do the same with my Hope SS hub. Can you put any cog on the hub? I donít know if the 11 sp hubs come completely apart. Iíd rather gear it a little higher myself. 13-24 or something like that.
    The SLX cassette is all single cogs except for the biggest 3. You could probably do a 13, 15, 17, 19, 21, 24 because I believe you can fit 6 cogs onto a Hope hub.

  9. #9
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    Has anyone fit 6 gears on an I9 SS? I've only ever seen 4 or 5, but 6 would be great.

    Thanks,
    Kurt

  10. #10
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    I'm selling a 6 speed XT cassette over on pinkbike if anyone is interested. Only has a handful of rides on it. The range is 15t - 32t.
    https://www.pinkbike.com/buysell/2425472/

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