Don't get me wrong, I think a 650B monster cross would be a great bike. I own a 650B monstercross and I really like it.
My point is that a 700c Hunqapillar is already a 29er. It is made to clear 700x55 tires. The BB drop is correct for 700x55. Estimating that as a 366mm radius tire, if you move to Quasi Motos, then you are dropping the bb by the better part of an inch. 650B conversions are cool because you go from 700 x too skinny to 650b x a lot chubbier. Let's say it is 3/4". That much extra under the fork crown would look ridiculous on a $2000 frame, so build a new fork, or spec a Bombadil 650B fork. But now you have to redo the head tube, which means the down tube lug changes. Same extra 3/4" at the bridges, so now the chainstays and seatstays need to change also if you want it to look like a bike where the designer knew what he was doing. Those might be vanity details to you, but Grant takes those details very seriously. He just wouldn't do it. The only two tubes on the bike he could avoid changing would be the seat tube and top tube. On Monday, December 23, 2013 8:00:34 AM UTC-8, Leslie wrote: > > On Sunday, December 22, 2013 7:58:34 PM UTC-5, Bill Lindsay wrote: >> >> There would be a lot more to it than just "lowering the canti-studs". >> > > > If you were wanting to, say, take a 26" Atlantis to 650b (other than using > Motolites for Hetres as has been done), then yeah, you might have some > clearance issues. > Same thing with a lot of the other bikes; doing my Ram, I was very > conscientious of keeping the 650b tall enough for not affecting BB-height, > etc. (again, going to Hetres). > > For a 29'er Hunq, it'd have great clearance for your big 650b's. You > wouldn't want to run smaller 650b's, because of BB height, etc.. > But if you wanted a lugged-steel 650b rigid mountain-bike, wouldn't a > Hunq be a great foundation? > > If you're not going to run anything smaller than Quasi's, what else > besides lowering the canti-posts would be needed? > You'd have clearance, the brake hangers are the same... just as long as > you're not riding 'too small' of a tire (ie, don't run anything smaller > than a Hetre), what else wouldn't work? > > Changing bikes: if you wanted to lower the posts on a 700c Atlantis to get > Hetres on there, it'd probably work, but I'd be really cautious about it, > to make sure that you were running Hetres or larger, or else more would > have to probably change. You would have to pay attention to clearances, > too, might not go to huge 2.4 Megamotos (if they'd ever happened), but a > Quasi should work there, too. > > Of course, a 650b Bomba, is already all that. But, since the Bomba has > gone custom-price, there's merit in considering one of the other frames > with relocated canti-posts. > > > > -- 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 post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/groups/opt_out.
