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  • Retro Triton Schlumpf Build with 32h Rim

    I'm taking this thread back 10 years with my recent retro Schulmpf Triton 29er build:

    Build highlights:

    Triton Frame purchased from Sidd here on the forums

    WTB Ranger Tough 29 x 3.0 tubeless tire

    KH One Saddle and KH bars with brake bash guard.

    Milled out KH Moment cranks

    Magura Rim Brake with custom handle attachment made from a Magura mount and washers

    Schlumpf hub #083 (acquired from Corbin) Laced to a 32h Surly Rabbit Hole rim (great lightweight 50mm wide tubeless rim). I had to do some special spoke lacing, but it works fine so far.

    I chose this odd wheel setup because this rim was the only rim brake compatible rim that also allowed for a good tubeless wheel. I prefer rim brakes and my hub is too old for disc. The hub is also likely out of any warranty.

    Note - since taking the pics I had to sand the anodization off of the rim sidewalls to reduce brake squeal.

    Spoke lacing notes:
    Lacing a 32h rim to a 36h hub involves skipping a hole on opposite sides of each hub flange. I decided to skip holes directly across from each other, and to match the hole skipped on both hub flanges in order to even out tension on the rim as well as possible. I chose the most damaged looking spoke hole to skip and the other on the opposite side. I also had to bevel the spoke holes on both sides ( older hub had only 1 side beveled) since skipping a hole causes 1/2 of the spokes to be oriented backwards coming out of the hub.

    With the Schlumpf hub and the Rabbit hole rim, Spoke lengths for a 3x 32h pattern were 293mm, and a 36h 3x pattern were 287mm.

    I had to buy spokes that varied in length between the 2 patterns (and even had to buy 8 spokes longer than the 32h length). The spokes angling back over the skipped hole (2 holes away from the skipped holes) had to be 295mm. There were 8 of these. The next spokes angling over the skipped holes (4 holes away from the skipped holes) were 291mm. The next set of 8 (proceeding out from the skipped holes again) should be 289mm long (I used 291mm and ground the ends down). The final set of 8 should be 287mm long (I used 289mm and ground the ends down). I chose 16mm long spoke nipples to maximize the threaded length (in case my spoke lengths were too short). The picture of the hub and spokes shows How the angle of the spokes gets more perpendicular to the hub/rim as the spokes crossing over the skipped holes get farther from them.

    NOTE - the hub pic has a few optical illusions: None of the spokes touch the hub flanges even though it looks that way in the hub pic. Also, one of the spokes looks damaged in the hub pic, but its not.

    This wheel was a little more difficult to true (had a bit of a hop), but now that its done, it seems just as solid as any other uni wheel I've built. Time will tell I guess.
    Attached Files
    Last edited by caseytronic; 2019-06-24, 05:29 AM. Reason: added content

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    • Triton Schlumpf Build - Brake Pics

      Just in case anyone was curious about the brake adapter in the prev post. The rusty washers are actually quite comfortable for braking.
      Attached Files

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      • That's half a Magura holder? Neat!

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        • Yes - a 1/2 Magura holder. The shape is good as it clears the central bar and puts the washers closer to the fingers.

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          • Originally posted by caseytronic View Post
            I'm taking this thread back 10 years (...)
            KH One Saddle
            It doesn't really look that outdated to me. The saddle certainly isn't.

            Magura Rim Brake with custom handle attachment made from a Magura mount and washers
            Looks nice, assuming you are ambidextrous for braking. I would be slightly concerned that the handle wouldn't run smoothly with the asymmetric force, or that it's pivoting axle would wear out because of it.

            I had to do some special spoke lacing, but it works fine so far.
            You described it very well, it would work as a refererence for someone doing the same thing.

            one of the spokes looks damaged in the hub pic, but its not.
            I couldn't spot it.

            Good job all in all, and nice muni!

            Comment


            • Originally posted by jaco_flans View Post
              ...The disk brakes make the bearings wear quicker as well (even on the new generation).
              This sounds like the best argument for running a rim brake instead of a disc brake since it transmits zero stress to the gearing and uses the entire diameter of the wheel for its braking force.
              Last edited by MuniAddict; 2019-07-02, 03:35 PM.
              Happy Birthday Terry! Every year you get cooler, younger and unicyclier!
              Be our muniprohpet for many years more.
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              • Originally posted by MuniAddict View Post
                This sounds like the best argument for running a rim brake instead of a disc brake since it transmits zero stress to the gearing and uses the entire diameter of the wheel for its braking force.
                Yeah wearing out the gears prematurely on my £1300 hub doesn't sound like something I want, but I also don't want to grind my sexy rim down The sooner they make an internal disk Schlumpf the better (Or make those adaptors shown above!)
                “It is well known that a vital ingredient of success is not knowing that what you're attempting can't be done. A person ignorant of the possibility of failure can be a half-brick in the path of the bicycle of history.”

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                • use all the spokes.

                  Use a disc mounted to the hub, pretty much no stress on the gears.

                  [/QUOTE]

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                  • Soon more pictures as it's getting ready!

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                    • Originally posted by lobbybopster View Post
                      Use a disc mounted to the hub, pretty much no stress on the gears.

                      [/QUOTE]
                      Can you send infos about the making process? I'm willing to have one too!

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                      • Thanks for the kind words above.

                        I've ridden this setup intensely for the past few weeks and the wheel has stayed true. I have not noticed any signs of extra stress on the hub.

                        Yes, my build is sort of half-retro. I really like the KH Zero/One saddle, and the newer tubeless rims/tires (I ride in the thorn capital of the world I think)

                        The brake handle operates smoothly, but I've had other, older Magura handles break on the thin part underneath the bolt mounting the handle to the lever. Its possible my custom brake could've caused the break, but the handles were also 30 years old so that didn't help.

                        If anyone is interested in more details on 32h rim >>> 36h Schlumpf lacing I'd be happy to discuss in more detail , and/or provide pics. Just PM me.
                        Last edited by caseytronic; 2019-07-08, 07:10 PM. Reason: typos, minor additions

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                        • Schlumpf grease type question

                          Hi All,

                          I ran out of Schlumpf's grease and I wanted to know if the following type of grease is the current one used by Florian: Shell Gadus S2 V220 2
                          I found the "2" is related to NLGI consistency but wasn't sure if it matters or not (since there is "0" type as well).

                          Thanks for the help!
                          Last edited by one4all; 2019-07-27, 07:36 PM.

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                          • Originally posted by one4all View Post
                            Hi All,

                            I ran out of Schlumpf's grease and I wanted to know if the following type of grease is the current one used by Florian: Shell Gadus S2 V220 2
                            I found the "2" is related to NLGI consistency but wasn't sure if it matters or not (since there is "0" type as well).

                            Thanks for the help!
                            I do not remember the exact reference. However, several riders (including Pierrox) found some equivalent grease that were cheap (in the case of Pierrox it is some transmission grease).

                            Let's hope one of them can chime in
                            => CrMo 29: KH XC rim, Nimbus CrMo hub, Spirit 110/137 & Schwalbe Big One
                            => Flansberrium 26: Nextie rim, JumboJim 4.0, Spirit 127/150mm, M4O ISIS

                            Comment


                            • Originally posted by Siddhartha Valmont View Post
                              I do not remember the exact reference. However, several riders (including Pierrox) found some equivalent grease that were cheap (in the case of Pierrox it is some transmission grease).

                              Let's hope one of them can chime in
                              Land Rover swivel grease!

                              Comment


                              • Originally posted by Siddhartha Valmont View Post
                                I do not remember the exact reference. However, several riders (including Pierrox) found some equivalent grease that were cheap (in the case of Pierrox it is some transmission grease).

                                Let's hope one of them can chime in
                                Thanks!

                                Comment

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