Garth is right that straight-arm cranks are meant for narrow-stayed frames. I did get a TA Pro 5 Vis to work on a very wide-stayed mountain bike (it fit 60 mm tires + fenders, comfortably) by using a custom 145 mm Phil and installing the big ring in the middle position for a “1X + granny” setup. The Q was 160 mm IIRC, about that of a 7 speed XT crank on 122 mm spindle, and it worked well, especially as there now was very ample room between big ring and crank arm for the fd cage.
I’m going to try again, this time with the Monocog 29er frame and 38 t inner using early DA crank and 130 mm spindle for a single speed setup; we’ll see. But yes, be prepared to use a very long spindle and be limited to very small rings on the inside. On Sat, Dec 14, 2024 at 5:37 AM Garth <[email protected]> wrote: > Spefically which VO crank with which rings are you referring to ? There > are two models with different BCD's. That version of Atlantis has very > bowed and non-dimpled stays just like my Bombadil and you just can't fit > any sized double on there. These frames are not meant for double road > cranks with straight arms. VO's suggested BB length would be for "average > road frames", but the very bowed Atlantis and Bomba chainstay shape is not > that. You run into a double whammy of clearance issues, of both rings and > arms. Fitting cranks on these frames is really a case by case hands-deal, > you won't know precisely until you're doing it. You may end up with such a > long BB that the chainline is overly wide and or the arms end up wider than > you like. If you're gonna try anyways, have a 118, 124 and 127 BB on hand, > with some spacers for the driveside if needed. The most common to use are > .5mm, 1mm and 2mm. > > Otherwise something like a New Albion GS double crank may fit better, with > 46/30 rings and 94mm BCD. The sugggest BB sizes start at 110mm, so even if > you have to go up a 113/115mm, you won't end up overly wide in chainline or > tread width. It's not blingy silver for sure, but least it doesn't have the > wonky hidden 5th arm like the other Sugino made versions. > > -- Patrick Moore Alburquerque, Nuevo Mexico, Etats Unis d'Amerique, Orbis Terrarum ------------------------------------------------------------------------------------------------------- Executive resumes, LinkedIn profiles, bios, letters, and other writing services ------------------------------------------------------------------------------------------------------- *When thou didst not, savage, k**now thine own meaning,* *But wouldst gabble like a** thing most brutish,* *I endowed thy purposes w**ith words that made them known.* -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/rbw-owners-bunch/CALuTfgv%3D2Q4Q8kJH7vfwZODCvWrAwLJS2Suv_%2BPwZfi3a5wmLA%40mail.gmail.com.
