Announcement

Collapse
No announcement yet.

2018 Crust Scapegoat, BBS02 or BBSHD, Rohloff IGH

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    2018 Crust Scapegoat, BBS02 or BBSHD, Rohloff IGH

    Initial Specs: 68mm motor(s), 73mm bottom bracket

    My second build, with the following goals, desires, or components:
    • Fattish tire clearance with a narrowish Q. The Scapegoat clears various tires, and initially came with 27.5 / 650B by 3.8 Maxxis Minion FBF tires. I'm going with 27.5 by 2.8 (or maybe 2.4) street tires to start. I stole this tire size/style idea from Rider. I don't want the complexity of suspensions, and am hoping that the right tire choice will soften the ride.
    • Clearance for either the BBS02 (primary) or BBSHD (backup) motor.
    • Big honkin' 205mm disc rotors
    • Velocity Dually rims
    • Cable operated brake calipers, for easier lever integration and roadside repair. I've had excellent results with the TRP Spyer dual-sided actuation calipers on my other bike.
    • 1/8 inch chain
    • There's only one wide-range, wide chain line, proven and well supported IGH with a simplified shifter - the Rohloff. I wish there was alternative with fewer speeds and a better price.
    • Adjustable, replaceable rear dropouts with an inboard (within the frame triangle) disk caliper mount
    • Capacity for a temporary chain tensioner
    • Steel frame tubes
    The frame is available bare or built - I elected to go with built as built was very close to what I wanted anyway, and the price seemed very reasonable.

    Here's some stock bare or built frame pictures:


    Click image for larger version  Name:	image_14039.jpg Views:	1 Size:	26.0 KB ID:	73812

    The rocker dropouts are Paragon-compatible:
    Click image for larger version  Name:	image_14040.jpg Views:	1 Size:	24.7 KB ID:	73813

    The 73mm BSA bottom bracket indents for the (up to approx. 38 tooth) chain ring, and clears both the BBS02 and BBSHD main gear housings - no spacers are needed. The wrinkled adhesive-backed rubber sheet acts as a bumper:
    Click image for larger version  Name:	image_14041.jpg Views:	1 Size:	653.9 KB ID:	73814


    Here's the BBSHD with the Luna One 36 tooth chain ring and a KMC Z510HX 1/8 chain, giving a chain line 0f 60mm, 2mm wider than the nominal (splined sprocket Rohloff) 58mm:
    Click image for larger version  Name:	20180917_141751.jpg Views:	1 Size:	1.47 MB ID:	73815


    Left side BBSHD / chain stay clearance:
    Click image for larger version  Name:	20180917_141933.jpg Views:	1 Size:	509.6 KB ID:	73831


    I rerouted the twin shift cables and cable box for better access, and to keep everything away from the eventual rear rack. I plan on moving the speed pickup adjacent and to the right of the rear brake caliper, with a magnet glued to one of the brake rotor spiral arms:
    Click image for larger version  Name:	20180917_141956.jpg Views:	1 Size:	952.8 KB ID:	73830


    The bike so far, with Schwalbe 27.5 by 2.8 Moto street tires:
    Click image for larger version  Name:	20180917_142105.jpg Views:	1 Size:	1.57 MB ID:	73816


    More to come ...
    Attached Files
    Last edited by ncmired; 03-09-2020, 05:25 PM.
    BBSHD/BBS02B builds: IGH 1 2 3 4 5 6

    #2
    Cable tie alternative (well, sort of)

    For my previous build I secured the cables and wires to the bike using standard band cable ties, and they work for the most part. I came across the Cobra Flexroute when trying to solve a securing situation that regular cable ties don't do very well. The Flexroute guides come in various diameters (both the surface diameter and the cable diameter), are soft to conform around any tube shape (main triangle, forks and stays), and can be both trimmed and doubled up to hold multiple cables.

    And no, you don't have to disconnect one end of the cable and route it through the guide - it clips on to the pre-routed cables, wherever you need it to be.
    Click image for larger version  Name:	flexroute3.jpg Views:	1 Size:	55.2 KB ID:	74348






    The special cable ties sit flat on the surface, though regular cable ties can also be used.
    Click image for larger version  Name:	cobra-flexroute-1.jpg Views:	1 Size:	31.1 KB ID:	74349







    Here's a "triple-up" of two shift cables and a brake cable:
    Click image for larger version  Name:	20180921_111512.jpg Views:	1 Size:	47.6 KB ID:	74350







    The guides have a slightly rubbery feel, and flex as needed.
    Last edited by ncmired; 09-21-2018, 02:36 PM.
    BBSHD/BBS02B builds: IGH 1 2 3 4 5 6

    Comment


      #3
      Originally posted by ncrkd View Post
      Initial Specs: 68mm motor(s), 73mm bottom bracket

      My second build, with the following goals, desires, or components:
      • Fattish tire clearance with a narrowish Q. The Scapegoat clears various tires, and initially came with 27.5 / 650B by 3.8 Maxxis Minion FBF tires. I'm going with 27.5 by 2.8 (or maybe 2.4) street tires to start. I stole this tire size/style idea from the Stromer ST5. I don't want the complexity of suspensions, and am hoping that the right tire choice will soften the ride.
      • Clearance for either the BBS02 (primary) or BBSHD (backup) motor.
      • Big honkin' 205mm disc rotors
      • Cable operated brake calipers, for easier lever integration and roadside repair. I've had excellent results with the TRP Spyer dual-sided actuation calipers on my other bike.
      • 1/8 inch chain
      • There's only one wide-range, wide chain line, proven and well supported IGH with a simplified shifter - the Rohloff. I wish there was alternative with fewer speeds and a better price.
      • Adjustable, replaceable rear dropouts with an inboard (within the frame triangle) disk caliper mount
      • Capacity for a temporary chain tensioner
      • Steel frame tubes
      The frame is available bare or built - I elected to go with built as built was very close to what I wanted anyway, and the price seemed very reasonable.

      Here's some stock bare or built frame pictures:
      Click image for larger version Name:	image_14038.jpg Views:	1 Size:	290.5 KB ID:	73811











      Click image for larger version Name:	image_14039.jpg Views:	1 Size:	26.0 KB ID:	73812








      The rocker dropouts are Paragon-compatible:
      Click image for larger version Name:	image_14040.jpg Views:	1 Size:	24.7 KB ID:	73813








      The 73mm BSA bottom bracket indents for the (up to approx. 38 tooth) chain ring, and clears both the BBS02 and BBSHD main gear housings - no spacers are needed. The wrinkled adhesive-backed rubber sheet acts as a bumper:
      Click image for larger version Name:	image_14041.jpg Views:	1 Size:	653.9 KB ID:	73814









      Here's the BBSHD, with the Luna One 36 tooth chain ring, giving a chain line 0f 60mm, 3mm wider than the nominal (splined sprocket Rohloff) 57mm:
      Click image for larger version Name:	20180917_141751.jpg Views:	1 Size:	1.47 MB ID:	73815









      Left side BBSHD / chain stay clearance:
      Click image for larger version Name:	20180917_141933.jpg Views:	1 Size:	509.6 KB ID:	73831









      I rerouted the twin shift cables and cable box for better access, and to keep everything away from the eventual rear rack. I plan on moving the speed pickup adjacent and to the right of the rear brake caliper, with a magnet glued to one of the brake rotor spiral arms:
      Click image for larger version Name:	20180917_141956.jpg Views:	1 Size:	952.8 KB ID:	73830









      The bike so far, with Schwalbe 27.5 by 2.8 Moto street tires:
      Click image for larger version Name:	20180917_142105.jpg Views:	1 Size:	1.57 MB ID:	73816








      More to come ...
      Sweet! Looks fantastic. how are the tires? Tube or tubeless? Looking into changing my knobbies for those. Do I see a rohloff? Dam I want one bad, but my wife will freak if she knew how much those things are lol.
      Last edited by ChrisJTX; 10-02-2018, 04:18 PM.

      Comment


        #4
        Hi Chris, thanks for stopping by - the tires are very nice. I rode on the stock, tubeless Maxxis Minion FBF tires all of once and hated the wheelbarrow-like steering feeling, not to mention the noise. The bike's geometry seems to work well with the Schwalbe 27.5 by 2.8 Moto street tires, as in very stable, and not flighty - which is how I want a bike to behave at my age. I run them with tubes at 40lbs, down from the max of 45lbs.

        I'll try dropping to 30-35lbs, based on Rider's experiences.

        Yep, the bike has a Rohloff. For now I'm sticking with IGH hubs with beefy 1/8 chains. I am using a redundant (to the rocker dropouts) chain tensioner to reduce chain cuts, as I'm still messing with the rear sprocket gearing. I try to set the bike's overall gearing so that I'm predominately riding in the hub's 1:1 gear (5th on a Nexus 8, 11th on the Rohloff).
        Last edited by ncmired; 10-06-2018, 08:37 AM.
        BBSHD/BBS02B builds: IGH 1 2 3 4 5 6

        Comment


          #5
          Can you get a thumb shifter on these bad boys? So far I have only seen half twist.. thinking about purchasing one under the wife radar haha.

          Comment


            #6
            Originally posted by ChrisJTX View Post
            Can you get a thumb shifter on these bad boys? So far I have only seen half twist.. thinking about purchasing one under the wife radar haha.
            The only other, non barrel shifter I've found is the paddle shifter set from Cinq5 - http://www.en.cinq5.de/schaltsysteme...for-flat-bars/ and the Gebla Rohbox, which is an adapter of sorts to trigger shifters - http://www.rohbox.com/.

            On both of the above there is no numeric gear indicator, so I'm not interested. My desire for the numeric gear indicator may be stupid or moot now that I'm no longer commuting. While commuting (on the same route) and trying to go as fast as possible, I memorized what gear worked best where on the route. My commuter has a Shimano 8-speed IGH with wonky variations in the ratios. The Rohloff on the other hand has very predictable, "a little more, a little less" 13.6% ratios, and maybe the paddles would be "the nuts".

            I'm less pressured to get somewhere now. I'm only pressured to ride fast (home) when I have a load of groceries.

            I'll get the hang of adjusting the stock barrel shifter. I'm waiting for the cables/housing to bed in.
            Last edited by ncmired; 10-06-2018, 09:17 AM.
            BBSHD/BBS02B builds: IGH 1 2 3 4 5 6

            Comment


              #7
              Sick! I built up an old Diamondback Outlook I've had for years with a Crust Clydesdale fork and just last week put a BBSHD on it. Loving it. I keep thinking about selling off a few other bikes and just building up an Evasion as a do-it-all (not e-) bike.

              Comment


                #8
                That new pile of Evasion frames is awful tempting - but I've way overspent my ebike allowance. My step-thru Evasion build went very nicely. What color would you go for - copper or raw?

                Congrats on that magical fork:

                Click image for larger version

Name:	59454020_298960487692686_3227444277771984516_n.jpg?_nc_ht=instagram.fist1-1.fna.fbcdn.net&se=7&ig_cache_key=MjA0NzEwNDY1Mjk3MzM5MjA0Ng%3D%3D.2.jpg
Views:	1654
Size:	304.0 KB
ID:	88308

                Click image for larger version  Name:	clydesdale-cargo-fork-3-600x596.jpg Views:	1 Size:	101.6 KB ID:	88306

                Last edited by ncmired; 06-13-2019, 12:16 PM.
                BBSHD/BBS02B builds: IGH 1 2 3 4 5 6

                Comment


                  #9
                  Definitely copper! And I'd toss a gold chris king headset on it

                  Comment


                    #10
                    here's a shot of my trusty old Diamondback I took today. Getting a 20 x 2.15 tire to replace the 20 x 1.5 on it now

                    Comment


                      #11
                      I came up with this exact idea, then find your post. Nice Job on the write up, thank you.

                      How are you liking it a year later?
                      What's the q factor measure to be?

                      Are you interested in selling?

                      Comment


                        #12
                        Originally posted by Wischman View Post
                        I came up with this exact idea, then find your post. Nice Job on the write up, thank you.

                        How are you liking it a year later?
                        What's the q factor measure to be?

                        Are you interested in selling?
                        Hi - thanks for the compliment.

                        The Q factor for both the BBSHD (stock Bafang cranks) and BBS02 (Lekkie cranks) configurations are wide, but could be narrowed up by using other cranks - I rough tape-measured 195mm. I've gone with shorter crank arms on my builds, to buy back a little cornering clearance.

                        The 2.8 Super Moto X tires roll really nice and are holding up well, but I think now I could have gone with smaller, lighter tires - 2-2.4 inch or so would be fine.

                        Thanks, but I'm not considering selling it - it's still in flux, purpose-wise. I had gone in the pack mule direction, but with the 30AH frame battery it may transmute into a long distance traveler.

                        Have you looked at Crust's Evasion?
                        Last edited by ncmired; 10-10-2019, 09:49 AM.
                        BBSHD/BBS02B builds: IGH 1 2 3 4 5 6

                        Comment


                          #13
                          Fall 2020 update, after maintenance (chain, rear tire, greasing, brake pad adjustment, etc. etc.) - now sports a 52 volt 30AH battery in one of the hard to find riveted bags:

                          Click image for larger version  Name:	20201117_132601.jpg Views:	0 Size:	2.58 MB ID:	117912

                          Click image for larger version

Name:	20201117_122756.jpg
Views:	220
Size:	1.60 MB
ID:	117913


                          The gearing has been lowered (via a 30 tooth chainring), so that the 1:1 gear is the go to gear - doing so violates the Rohloff cog to chainring ratio rule (oh well).
                          Last edited by ncmired; 11-17-2020, 12:52 PM.
                          BBSHD/BBS02B builds: IGH 1 2 3 4 5 6

                          Comment

                          Working...
                          X