I've got an Actionbent T1 non-suspended tadpole 26"rear/20"front trike with a rear Nine-Continent 2606 brushless hub motor from ebikes.ca. I had to file down the axle shoulder to 131 mm, from 135 mm, in order to get the motor in the rear dropout, along with the spacer washers, with just a bit of frame spread (3 mm - it is an alloy frame). I set up dual torque arms on each side of the wheel (those on each side opposing each other) to fully immobilize the axle, in the dropout (which is perhaps a bit soft, due to being alloy). I have a 12 Fet BMSBattery "universal" pedal first controller with a hand throttle on the trike left handlebar (45 dollars), and a CycleAnalyst on the boom. With a 48volt 15Ahr ping battery in one rear pannier - with the possibility of running dual packs. Presently with the amount of pedalling I do, which is considerable although easy, I am averaging around 15 watt hours per mile, which is quite good given my average speed around 25 mph, with bursts to 35 miles per hour on long flats, or downhill. The bike is lit up like a Christmas tree with a custom flag from purplesky.com, and a Cree flashlight from dealextreme, on a Minoura space grip attached to the front of the boom. I was getting a bit of shimmy on the trike with the lower tire pressures I prefer to run, and had to put a rubber o-ring around the headset bearing, inside the cap, to eliminate it. I'm not sure WHAT the previous poster who derided hub motors was talking about, given the excellent torque and speed of the motor - with two packs I could easily cruise safely at 35 mph, with great stopping power from the disk brakes on the front. And I can carry a lot of cargo - the trike is rated at 265 lbs - I'm 165 + a 15 lb battery which leaves lots of room for camping gear. Or I could attach my Bob trailer. The pedal first works very well, and will actually start up the wheel with no pedalling at all, with no Hall sensors (it can use those if desired). This is an excellent controller - I getting up to 1300 watts out of it as registered on the CycleAnalyst. Of course on local bike trails I stick to 20mph and ride carefully, but around town on normal roads it is nice to cruise with regular traffic, in my top gear which is around 120 gear inches. I can still assist up to 35 mph with that gearing. Clipping in is mandatory at those speeds for safety I think. So far I am extremely happy with the bike, even though they sent me the alloy version by mistake - I had ordered the cromolly version. 1200 dollars for the trike, to Victoria BC, landed in my living room in about one week from Redmond Washington. It took a bit of fiddling with the toe-in to get it just right - I've got a Big Apple on the back at lowish pressure to protect the motor/spokes from impact shocks, and dual Primo Comets on the front. I found that Big Apples on the front drastically increased the shimmy problem before I solved it with the o-ring inside the headset. You want your headset tight, with lots of friction to reduce shimmy tendency. I've had the trike on about 15 longish thirty mile rides around Victoria with no issues so far, other than the 9C spokes needing a bit of tightening. Truing the hub motor wheel perfectly is less of an issue I find with the front disk brakes than on a V-brake bike using the motor wheel rim. These tadpole trikes are a riot - and there's nothing wrong with a beefy quiet direct drive hub motor, good at all speeds! I think a Catrike Expedition would probably be a very similar experience.