To tire clearance, all the QB owners, from green to orange, to silver (I'm silver), report 38mm Rene Herse Barlows working brilliantly, and some try and stuff a bit more in there but doing so looses some chain play toward the front. I've run 44mm whatever they are called 700c Rene Herse tires and it is snug and no room for more.
WIth abandon, Patrick On Wednesday, January 15, 2020 at 9:34:49 AM UTC-7, Coal Bee Rye Anne wrote: > > Specifically, and in short, is there any appreciable difference in rear > tire clearances between Gen1(green), Gen 2(orange), Gen3(silver) Quickbeams? > > I'm assuming differences are negligible but just curious... > > I have general familiarity with other design changes and have read through > the cyclofiend archives, readers, etc. I know Gen1 lacked mid-fork rack > mounts, which Gen2 added, which Gen3 then evolved into barrel bosses plus > the updated swirly fork crown plus kickstand plate and modified decals. > > But did the rear or the silver Gen3 also change to gain any notable > clearance difference to match the wider fork crown? Or did any such changes > in the rear later arise with the SimpleOne which utilizes the same > Hilsen/Hillborne crown? Anyone actually own/ride multiple versions of > these to directly compare? > > > Long version: > Reid's recent Silver QB post in the 'Daily Riv picture thread' > re-ignited this question I've previously pondered but never bothered to ask > or investigate. With Grant's recent mention of another forthcoming single > speed in that Reddit AMA thing I'm hopeful that a few may be sized to > accommodate us taller folk (97+ PBH) though I'm trying not to get too > excited knowing the risks involved with the outlier sizes. I currently own > 3 different frames which otherwise fulfill my immediate single speed needs > and these have been individually rotated through various builds the past > several years. I've kind of found what I believe to be a suitable personal > all-around build that would easily transfer over to a 68cm QB in the event > the hinted at forthcoming SS model excludes those of us on tall side. With > that in mind, although I'm going to wait and see what the future holds > regarding that potential new model, I'm trying to determine how I may want > to prioritize, if warranted, a search for a second hand QB in the event a > new Rivendell SS is a no-go. > > My own closest functional equivalent to a 68 QB is an early 80's Schwinn > in a 27"/69.5cm seattube which I've just maxed out tire clearance with > Conti Speed Rides (700x42) with an actual 38-39mm width on Velocity Chukker > rims. Fork is tightest at the caliper/crown with chainstays closely > matching in total clearance. I'd expect all QB models would accommodate > these tires/wheels without issue but I know the later/swirly > QB/SimpleOne/Hilsen/Hillborne fork crowns offer a little more generous > clearance. I briefly owned one of the surplus SimpleOne forks for a > related but abandoned project. The intended frame ended up failing but > would have become a 'budget-substitute 62cm SimpleOne' and the fork was > ultimately too short or too tall for any alternate projects I had available > so I later sold it. > > My personal preferences lean toward the Silver Gen3 QB's (fork > crown/barrel bosses/kickstand plate) but in case the newer SS doesn't come > to fruition nor fit my anatomy and I later conduct a WTB search for a > second hand frame I'm just trying to gauge whether or not there is anything > really notable to gain/lose between the earlier QB Gen's vs. Gen3? > > It's possible this is all for naught and I may very well find myself > saving for a new model. Although my Schwinn also remains serviceable > as-is, considering it's age and unknown history, I don't necessarily have > high hopes for it's longevity so I'm more or less just trying to prepare > for a longer term SS investment to complement my Clem and more definitively > adapt into a slimmed down 2-3 bike stable to better reflect my actual > space/needs. I'm currently rotating one bike at a time with an updated SS > build almost ready for dedicated 2020 winter duty. > > Best, > Brian Cole > Lawrenceville NJ > -- 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/f601bc36-a219-4033-a028-f0f036f50ecd%40googlegroups.com.
