ATS Speed Drive- experiences?
06-14-18, 11:32 AM
#26
Banned
OK looked up for what you were carrying on about
a copy of the German made 2 speed geared crank, out of Taiwan..
Welcome to ATS
I suppose the Schlumpf CH , copyright has timed out..
Have been using the Swiss original Mountain drive for many years.. their Brompton version.
on my M3L.. 3 low gears added where the lowest in 1:1 range end..
functionally adding a 20t low. to a 50t, rather than a 54t high to a 34t low.
..
a copy of the German made 2 speed geared crank, out of Taiwan..
Welcome to ATS
I suppose the Schlumpf CH , copyright has timed out..
Have been using the Swiss original Mountain drive for many years.. their Brompton version.
on my M3L.. 3 low gears added where the lowest in 1:1 range end..
functionally adding a 20t low. to a 50t, rather than a 54t high to a 34t low.
..
06-14-18, 02:18 PM
#27
Banned
I've never heard of ATS before now. This very similar product has been around for at least 6-7 years, apparently works but not inexpensive:
schlumpf drive - Home - schlumpfdrive - ultraflat Planetary Gear for Bikes
schlumpf drive - Home - schlumpfdrive - ultraflat Planetary Gear for Bikes
having looked up the site
maybe the German company got a Taiwan company to take over production of that model
to lower the costs , raise profits,
the Swiss company shifted things to Germany since all the numbered secret bank accounts
have kept the CHF value too high, in currency exchange value..
..
06-20-18, 12:30 PM
#28
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My upright like yours is for loaded touring and geared similarly or possibly a bit lower. In low i lack aerobic fitness to keep balance for long pulling kid and trailer up hills too steep for second gear. Just got a used trike with rohloff/ats speed drive and pair of chainrings.
Greenspeed is now offering the ATS speed drive on their line of trikes. I will accept that for now as a substancial refrence for ATS.
i suspect that ATS makes all three schlumpf products for the german firm that owns them now. Marketing the 165% speed drive independantly was probably part of the deal after x time. Leaving schlumph brand alone for now with the 250% products. ATS website says they manufacture under licence to them.
on my 56 speed R’off trike, i do enjoy the gear range, the longer chain line and chain guides makes alignment less an issue for me. I can now bike as slowly as i need pulling trailer on family outings. Seller claimed it was a mountain drive, and i was dissappointed, but now planning to put the ats-speeddrives on my upright touring bike and wifes trike.
Greenspeed is now offering the ATS speed drive on their line of trikes. I will accept that for now as a substancial refrence for ATS.
i suspect that ATS makes all three schlumpf products for the german firm that owns them now. Marketing the 165% speed drive independantly was probably part of the deal after x time. Leaving schlumph brand alone for now with the 250% products. ATS website says they manufacture under licence to them.
on my 56 speed R’off trike, i do enjoy the gear range, the longer chain line and chain guides makes alignment less an issue for me. I can now bike as slowly as i need pulling trailer on family outings. Seller claimed it was a mountain drive, and i was dissappointed, but now planning to put the ats-speeddrives on my upright touring bike and wifes trike.
06-21-18, 10:51 AM
#29
Banned
Overdrive is R'off approved ,
because 1 thru 7 are already in a reduction gear mode, so due to overstressing
a mountain drive voids the hub warranty,
[a swiss mountain drive is on my Brompton , 3 speed , even if it is damaged the hub internal parts are cheap and relatively easy to replace]
the 250% 'high speed' (over) drive may also be approved..
Low gear achieved with the speed-hub in a 406, 20" wheel, is a trike option ..
have a Bike Friday and a 26" wheel bike same hub cog
minimum gear 16:38, range is matched with a 16:53 in a 20" wheel..
....
because 1 thru 7 are already in a reduction gear mode, so due to overstressing
a mountain drive voids the hub warranty,
[a swiss mountain drive is on my Brompton , 3 speed , even if it is damaged the hub internal parts are cheap and relatively easy to replace]
the 250% 'high speed' (over) drive may also be approved..
Low gear achieved with the speed-hub in a 406, 20" wheel, is a trike option ..
have a Bike Friday and a 26" wheel bike same hub cog
minimum gear 16:38, range is matched with a 16:53 in a 20" wheel..
....
Last edited by fietsbob; 06-21-18 at 10:55 AM.
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