The gap on my mtb is way bigger than that and I find it great on my commute. I just drag the chain over with my toe at the bottom of the hill on the way home. On a roadbike you might find the top gear too slow.
I’m chickening out. That chainring combo needs a multispeed cluster to be useful in a way I would like.
Ordered spokes to build some vintage hubs and rims into a 5 speed wheelset. Going to go full reenactment with Huret Jubile shifters and dangler, 5 speed freewheel, and 46/30 crankset.
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Is there any way to run a square taper spindle within these V-O BSA eccentric 24mm spindle bottom brackets?
Maybe if you get a press fit reducer made for the spindle? That seems like a major failure point though, and I don’t see how you would account for any preload
about as successful as any other external BB for a 24mm spindle. how you gonna get your cranks on? you’ll have the widest stance.
Phil centric?
yes there is definitely a way
these cups will have 6805 bearings at 25x37x7 with delrin sleeves down to 24mm
the artisanal and/or aliexpress square taper BBs all have a 6903 at 17x30x7, normally preloaded naively by spindle having shoulders for the inner races
there isn’t naturally a 17x37 bearing available, so the right thing to do would be to turn some press-in 30x37x7 sleeves on a lathe, while harvesting the spindle and bearings from something like this or a Phil/White/etc:
given that the bearings are likely spaced further apart you’ll likely need to shim the spindle inside to locate it properly, and this would give you a whole construction kit for that if 107mm is the spindle length you need:
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If someone here actually dithers this to reality I think we can go ahead and shut things down and all go home.
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Great dithering!
Spindle length would be limited to not using anything too short, given the additional width beyond the BB shell of the eccentric housings.
I will think on this, and probably just end up with a normal 2-piece crank anyways.
feels like two piece cranks are designed to snug the bb but 3 piece cranks aren’t
True, there are a few old MTB sq taper BBs that use a shaft collar to do that. Or something like the Answer Slider BB.
the over-bearing width is going to be ~90mm, and you need ~20mm on each side for the taper, so that leaves you stuck with a very odd 140 or wider spindle which is going to be hard to find and also fucks your chainline
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not to sound snooty, but if this was possible I already would have done it
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WI would have done it instead of the ENO, too.
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Currently wondering if any of the products in @JUGE_FREDD 's post can make my White Industries Ti BB stop creaking.
My kingdom for a nos Shimano square taper bb!
AND SHIRT
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Uh, is that a hydro spoon brake?
nah, just looped it over and around the bars since I haven’t mounted it yet
hint: zoom in, the parts spec is not the weird part
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