To the guys inquiring about comparisons between the BBSHD ( Luna Hot Rod tuning 1500w ) and the Ultra with the Archon X1 upgrade ( 1000w ) I can give a little insight.
I went with the 1000w version as the power curve looked as good or better than my BBSHD. Hoping for the best.
I can honestly say I like the Ultra better.
Pro:
PAS is ALOT smoother
Motor built into frame
Narrower profile between crankarms (5")
Drivetrain is phsyically closer to frame
More energy efficient ( could of made a smaller battery, less weight etc. ) Probably will last 2x as long
Makes me actually have to pedal more for the ASs to engage, better workout
Availibility to reprogram to my specs to fine tune
Controller warrenty to some extent
Con:
2x more expensive especially with controller upgrade, program cable and update program and availibility
Propriatary controller software
Stock throttle way to weak for off-road, Unlock throttle for full wattage +$100 really?
Noiser than the BBSHD
Much more pedal strikes.
My old hardtail bike ( BBSHD ) was a Surly Wednesday ( steel frame ) running 4" fat tires and a Sturmy Archer IGH 3spd on the rear. 36t in front and 20t on rear. Wren 100mm fork on the front. Pretty bulletproof and with a 38ah battery inside the main triangle I would typically run in PAS 2 level 90% of the time and throttle ALOT and could go 40 miles easy. Bike weighed in at 74.84 lbs.
Current bike WW Travelanche (carbon frame ) running 3" tires and a 11 spd Shimano Deore XT drivetrain. 38t in the front and a 10/42 in the rear. Wren 150mm fork on front. 34.5ahr battery fit inside main triangle. Usually run in PAS 3 level 100% of the time. Very smooth on accelerating and you can pedal hard and get a little "whip" forward to get you through a tougher section. I have a ton of pedal strikes I'm guessing due to the rear flex causing the motor to drop lower to the ground. Center of axle spindle is 1" higher than the hardtail but it doesen't flex so stays constant. I use to just throttle and blow through these sections not anymore.
Rode the BBSHD for about 3 years or so ( all off-road ) and I still love it but as I get older (62) slowing down a bit and having to work a bit more actaully sounds ok.
I would change over in a heartbeat again just maybe do it all a different way. Thanks for listening