Bike Choice for Bafang Crank Drive

hipergp

1 mW
Joined
Dec 17, 2013
Messages
19
Location
Bay Area, US
Has there been any new news regarding the "teeth" biting into the BB better or worse on Alum vs steel bikes?

I've been dreaming/planning a build for a long time now and had been leaning towards a steel bike vs aluminum for holding a hubmotor. Now that I'm leaning towards a BBS02, that shouldn't be a requirement, unless steel is really that much more comfortable than alloy.
I have a Raleigh Misceo 555mm hybrid with a cromoly straight blade fork, discs, brifters and 700x38 tires; and a Schwinn Mesa 23"(26x2.0) mtb with a preload adjustable pogo stick, and linear pull brakes(sep levers/shifters). Both have trigger shifters for acera in the front, and alivio in the rear, 3x8, 48f/11r. The Schwinn is much more comfortable, but i picked up over 3mph average on my old commute with the Raleigh.

With both of these bikes, the fitment and riding position is relatively the same, both have rear racks already and a lot of space in the triangle(slight edge to the schwinn). Does anyone have any opinions on a 700c road or hybrid vs a 26" mtb? Of these two bikes I ride the Raleigh 10x more because it's that much faster and more efficient to pedal.

Or would a steel hybrid, that I could potentially put a decent susp fork on be a better idea? Something like this:
http://www.amazon.com/Framed-Lifted-Seven-Speed-Silver/dp/B00F0RPVZM/ref=pd_sim_sbs_sg_35
No ft derailleur to remove, no cables on TOP of the top tube, a single grip shifter that can be moved to the left side, be an even better idea?

If high enough sustained speeds with 26" wheels is really feasible, I'm also considering a full suspension, either Dawes or Gravity from Bikesdirect, the cheapest that comes with separate brakes and shifters vs brifters.

The pros and cons I'm weighing are BB longevity, speed, efficiency, comfort, simple install. Will the 750w BBS02 on pedal assist move a 700x38 bike noticeably faster than a 26x2.0 mtb?
 
http://bikepedia.com/QuickBike/Bike...Schwinn&Model=Mesa GSX&Type=bike#.UvNRWfldUrU
that's the schwinn, but upgraded to a 48/38/28 crank in an attempt to make it a better commuter, and shifters after breaking the originals.
I really feel that this bike, while aluminum, since it has massive dropouts, a huge triangle, and has been upgraded to a bigger crank is an ideal candidate for a hubmotor or a gas/electric hybrid.

http://www.bikepedia.com/quickbike/BikeSpecs.aspx?year=2011&brand=Raleigh&model=MISCEO#.UvNRxvldUrU
I comfortably pedal this one at 18=21mph on relatively flat ground, but feel that either my joints are getting old, or curved forks are more forgiving than straight blade. Perhaps just need better grips.
 
Has anyone used same the same battery and similar weight bikes, 26" and 700c, and kept track of range and top speed? both pedelec and throttle?
I know that the same cadence makes a noticeable difference between the two, but does the BBS02 have enough power to make a noticeable difference? Under load, what cadence can it push the crank at with the different diameters/rolling resistance?
 
Has anyone put the Bafang mid-drive on a Marin Muirwoods 29er? I am also curious about the LCD not being removable. Wouldn't this attract attention to the bike while locked outside of a store? I also remove my bike computer when I lock my bike up.
 
i also take my accesories off of my bike, i hadn't really thought of the bafang LCD as being fixed, it may be removeable.
 
hipergp said:
i also take my accesories off of my bike, i hadn't really thought of the bafang LCD as being fixed, it may be removeable.

It''s non-QR - It's held on with 6 hex bolts.
 
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