3 SPEEDS FOR ALL
the problem is surely once you add the selector parts the added weight of each gear is probably negligible. I quite fancy dinglespeed though on my el mariachi as commuting on 34-20 is really spinny, but I like riding with a high cadence off road normaly so its fine for that.Posted 4 years agoreynolds853Member
I like my gears. My knees like my gears. I also like my single speeds, my knees not so much. After a brief experiment I figured I could get by with 3 gears, one for your typical singletrack fun, one for going up those really steep hills and one for coming down fast or commuting in a hurry. So here’s the question, has anyone tried a sturmey or other type of wide range 3 speed hub for such activity. If so how did you get on? Can you still walk?Posted 4 years agobigblackshedSubscriber
I know it’s not 3 speed or hub gears but my knees have given out and I’ve gone 6 speed on my Hope SS hub with a Zee short cage mech. I was running 33-17 with a 9 speed chain. Couldn’t get a 10 speed chain on the Surly front ring to match the clutch mech. So now running 32 Hope front ring with the 15, 17, 19, 21, 23, 25 sprockets off a 105 cassette.
All works as it should and I haven’t dropped the chain once. The three big ones are too spinny for anything other than what you would use a granny on a full geared bike. You can’t stand up a gurn up a hill, you just spin the back wheel with no traction. So it’s taken a bit of getting used to.Posted 4 years agomick_rSubscriber
Sturmey do a 3 speed with 135mm spacing, 6 bolt disc mount and thumbshifter – less than £100 for everything.
Lighter than an Alfine and felt much more direct and less mushy (pawls rather than roller clutches). Proper direct drive in middle 1:1 ratio (Alfine isn’t direct drive). Ratio mix was good for Lakes etc in UK, but broke me trying it in Austria (reverted to backup 7 speed derail. on a Hope ss cassette hub).
Downside is no sealing whatsoever, weak axle and chainline not very good with regular mtb cranks.
Nearly there, but not quite…..Posted 4 years agomick_rSubscriber
The Sturmey ratios were pretty much spot on for expanding a singlespeed range – the low gear was just low enough to take over where you would be stalled out ss (or dying from leg cramps on a long day out). The high gear was just high enough to make progress on the road whilst not spinning like a ****.
Slightly bigger jumps would be OK, but anything replicating the absolute extremes of a triple setup might not be very rideable in reality.Posted 4 years ago
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