Just wanted to say thanks for the insights everyone. I posted a longer reply a few days ago that still awaiting the moderator (I guess?) but I just wanted to say thanks in the meantime...
Joe On Thursday, December 15, 2022 at 6:12:33 PM UTC-7 rcook...@gmail.com wrote: > Joe, > > The final iteration of Surly's Pugsley had 460 mm chainstays and accepted > 4.8 in. tires "with drivetrain restrictions." It also had a 72° seat tube > angle, which would feel a little more relaxed and Rivish than the steeper > angles on MTBs these days. > > The Tumbleweed Prospector and the Crust Scapegoat max out at 4.0 in. > tires, I think, but have 73 mm bottom brackets for a more comfortable Q > factor. (I ride a Pugsley, and have a limited tolerance for the 200 mm Q > factor.) > > If you go custom, Myth Cycles in Durango CO has the Chimera ( > https://mythcycles.com/bikes/chimera/). The listed geometry is shorter in > chainstay and wheelbase than you want, evidently the design allows a > narrower Q than usual for a fatbike while also accommodating 4.8 in. tires. > > That Tanglefoot Bull Thistle, though… wow. They present it as a > drop-bar-specific design, but the top tube and reach are long enough to > work with an upright bar, I think. Limited to 4.0 in. tires, but the bottom > bracket is 83 mm so the Q factor will be narrower than most fatbikes. The > angles (ST 71°, HT 69.5°) rather Riv-like, and the lugs—the LUGS! > > I'm curious to see how your quest plays out. > > -- > Bob > > P.S. Maybe the most Rivesque fatbike would be an early Pugsley, when they > still had cantilever studs and Large Marge rim-brake-compatible rims. (See > Rivendell Reader 39 from 2007.) > > On Thursday, December 15, 2022 at 12:21:16 PM UTC-7 Joe D. wrote: > >> Hello Rivendell aficionados! The short version: I’d like some advice on >> picking a fat bike (4-5” wide tires) that shares similar ride >> characteristics with the current crop of Rivendell long chainstay-long >> wheelbase bikes (e.g. Clem, Atlantis, Platy, Gus/Susie). >> >> The long version: I’m in the market for a full-on fat bike, with true 4-5 >> inch wide tires. I live in Montana and my previous winter riding with >> studded 3 inch tires just wasn’t enough. We’re a one car family, so in >> addition to riding on winter trails or snowy forest service roads for fun, >> I’ll use the bike for groceries and errands as well. And as much as I’d >> love an Atlantis or Platy for dirt roads, bike camping, and light trail >> use, the more economical choice would be to get a set of 29 inch wheels for >> a fat bike and run 2.8 or 3 inch tires in non-snow season for an all year >> off-road bike. Hence the importance of making a good choice now. >> >> How I came to desire a Rivendell-esq fat bike: A friend in another state >> got a 2019 Clem and raves about the comfy, stable ride with the long chain >> stays/wheelbase. But the real kicker was when I got a Yuba Mundo Lux cargo >> bike (https://yubabikes.com/cargobikestore/yuba-mundo-lux/) for hauling >> my two kids around. The swept back bars get me sitting upright, and the >> crazy long chainstay (753mm) and wheelbase (1410) make 150lb loads totally >> manageable. It’s like a Cadillac. Since the Yuba, I’ve vowed that all my >> bikes will be long and upright. Fortunately upright stems and swept back >> bars can take care of the upright part for near any bike, so that leaves >> chainstay/wheelbase length as the big question for a fat bike. >> >> For reference, scroll down here ( >> https://bikeinsights.com/compare?geometries=5d1ae74763bde8001707cf36,5e1faf637f17da00170c6e28,) >> >> and you can see the chainstay/wheelbase lengths on the Clem and Atlantis, >> both ~550mm for chainstays and ~1235mm for wheelbase. For fat bikes, >> consider these two models ( >> https://bikeinsights.com/compare?geometries=5ff009522655ff0017c6e96a,61c0a2add559210021256cf2,). >> >> The Wyatt can actually have a longer wheelbase than the Rivendells with its >> sliding dropouts (1250 max wheelbase). But its chainstay is only 465, still >> long-ish for mountain bikes but not near what a Riv or cargo bike is. It >> achieves that with a slack head tube angle that pushes the front tire way >> out front. >> >> Alternatively, the Giant fat bike in the link has a similar max chainstay >> length as the Wyatt (460mm) but a shorter wheelbase (1170mm), leading to a >> more centered position on the bike. I’m unable to find any fat bikes with >> the combination of long chainstay/wheelbase that the Rivendell’s have. >> >> Any tips on which bike, and which geometry approach in general, would get >> me closest to the Rivendell/cargo bike-like comfort and ride quality? Other >> fat bikes? For simplicities sake, I guess don’t evaluate factors other than >> geometry, like frame material. For what it’s worth, there are very few >> chromoly fat bikes. >> >> (Sorry for the length! I appreciate anyone getting into such a bike-nerdy >> discussion) >> >> - Joe >> > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. 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