Having not seen a flip-flop hub in real life I'm asking if both sides of the hub use the same mechanical means of fixing the freewheel/sprocket or do they use different means ie; one side using a screw-on thread while the other uses the Shimano hyperglide fitting?
Both sides are threaded.
standard is to have threads
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this one is fixed/ free. fixed side can be seen with the smaller LH thread for the lockring.
you can fit a freewheel on a fixed side - it's not advised to fit fixed cog without a lockring.
😀
Arrr.... that explains a lot! Thanks!
Yes both sides threaded, sometimes one side or both will accept a lockring too (for track cogs).
Both sides are threaded.
unless it's a Halo FixG - these are fixed thread on one side and have a HG slotted mount on the other, much easier to change ratios.
is there a hub availble that could allow the use of a freewheel on each side rather than a free/fixed combo? so that a rider could flip ratios to a slightly higher or lower one depending on the terrain as was done with bikes before the advent of the Campagnolo rear mech? Or does a flip-flop HG sprocket on each side hub exist? Though I imagine having two freehubs, even mini freehubs, may be too much of a faff.
2 freewheels would fit on the hub pictured above.
There can't be much room for changing the ratio before you'd need to change the chain length? You could carry a second chain easy enough I guess. Getting to be a bit of a contrived way of avoiding gears though 🙂 2 cogs and a chain in yr pocket.
don't white industries or someone do a double freewheel? you could use that along with 2 rings up front to achieve a 'road' and 'off road' gear with the same length chain - similar fixed set up with a Surly Dingle cog.
or use the Hope trials hub with 2 cogs to achieve the same effect out back.
2 freewheels will fit on a free/free, fixed free or fixed/ fixed.
you can fit a freewheel on a fixed side - it's not advised to fit fixed cog without a lockring.