[QUOTE=2old;20474573]"Stretching" the rear triangle is, for example, putting a rear hub with 140 mm width into rear dropouts with 130 mm width; you're forcing the dropouts apart to accommodate the axle.


R. I was speaking of the triangle under the top tube where you would most likely place a e-battery. Okay, see what you are referring to now. They call/refer to the rear dropout area as a triangle?


As DW said 35 or so mph with a BBSHD, 30 with a BBS02 (that's what mine achieved with a 46 tooth front chainring and 11 rear cog AIR). My BBS02 with a 52V, 6 a-h battery goes at least 20 miles off road since I don't use the motor about half the time. However, as he stated, there seem to be problems with the systems now**********


R. Yea first time I heard of any problems with the mid-drives?


Since weight isn't a consideration, you could consider a direct drive rear hub system. A 1000w, 48V YESCOM kit (26") will go 33+ mph on a flat road with a 52V battery. I put together a system for an MTB for about $600 (motor kit $200; battery and charger <$400), but its range is only 12-15 miles.


R. I haven't looked at and only heard of a direct drive system once before, your the 2nd one I've heard mention a direct drive. I'll check it out tho. I presume the (26") you mentioned is the size of a bike tire kit? The tires on my Hybrid are 700cc. Motor seems cheap, but the range is very limited, making it almost impracticable?


BTW, my LeBS was selling 2017 Haibikes with a Yamaha mid-drive for $999 at the end of last year because Haibike had excess inventory.


R. But how many watts? And the size of the battery?


Look at the tutorials on ebikesca for more information.


R. Okay thanks I will. But as stated in one of my previous posts today I did order the bike this afternoon I had listed in my OP. My head was OD'ing from info overload!