For the OP, if you want to continue experimenting, you can try switching to a boost front, which moves the front chainline outboard by +3mm. Depending on your current crankset, that may mean a new crankset (expensive) or a new set of boost chainrings (not as expensive, but still expensive) that adds the boost offset via the chainrings themselves. (Boost cranksets use the same bb as their non-boost counterparts.)
I used to have a Krampus Ops with 3.0 Knard tires, 73mm bb shell with Hollowtech II equivalent bb, a 135mm rear hub, and short chainstays. I ran it 2x10 using the stock Surly OD crankset <https://surlybikes.com/blog/od_crank_and_1x11_drivetrains>which had a 51.4mm chainline and didn't experience tire rub. Surly cautioned that, to run a 2x front with a plus tire on the Krampus , one *had* to run that crankset, and that pre-dates the 148mm boost rear spacing. One caution: a 12sp cassette and longer chainstays on your Susie moves the chain closer to the tire than on the Krampus so that may still not work. --Ed C. On Friday, June 26, 2020 at 6:45:40 PM UTC-7 Bill Lindsay wrote: > Come on Ryan! The clearance shots are informative, but give us the > canonical full profile. Slap me in the face with a big orange bike! Sock > it to me! > > Bill Lindsay > El Cerrito, CA > > > On Friday, June 26, 2020 at 2:49:48 PM UTC-7, Abcyclehank wrote: >> >> David, >> >> As just an average mechanic I decided to let RBW deal with the build on >> my Susie. I also purchased a Gus that I intended to build up as a 1x12 >> SRAM setup but am now questioning the endeavor. >> >> My XL Susie has a SILVER 184 triple (44x34x24 chainrings). A Shimano XT >> front derailer, Shimano HG 9 speed rear cassette (CS-HG201-9) and Sunrace >> R90 rear derailer. >> Running 29 x 2.8 Teravail Coronado tires w Tubes. >> >> Following is the clearance available in Small Large with good clearance >> on top of chainstay 5-6mm underneath only 2-3mm. >> >> Enjoying and learning so much from others expertise about gearing, >> clearance, 73/68bottom brackets etc. >> >> I personally think it would be a shame to ride anything narrower than a >> 2.6” tire. Good combinations will surface and riders Will absolutely love >> these bikes. >> The arrival of my two new Hillibikes will release 3 bikes back to the >> wild. A 64 Clem L frame and fork, a 64cm Bombadil I never expected to ever >> sell, and a 25+LWB Jones with original 135mm rear MTB rear stay distance. >> >> Sincerely, >> Ryan Hankinson >> West Michigan >> > -- 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 rbw-owners-bunch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/5f64871f-3cf4-459a-b77e-88c7a5842851n%40googlegroups.com.
