SkyknightJohn
100 W
Second year e-bike update and stats.
Original Build thread: http://endless-sphere.com/forums/viewtopic.php?f=6&t=41127
I cleaned up the look of the bike hiding the controller and wires under a ¾ section of pvc flashing strapped to the rack, that also acts nicely as a mud guard.
The battery is still held in place by belts and a quarter section of the pvc on the bottom to distribute the weight, and some foam all around. I still plan on coming up with something different for a cover/bag/box, but I got in on the Farfle swing arms, so I may have to up to 48v or more after installing it. That will require a different battery solution. (Before you all suggest lipo, I live in an apartment and just so no to lipo until my living arrangements change.)
I cleaned up the handle bars by removing and replacing the controller on/off switch with a small toggle, which can be seen in the front of the triangle.
A mirror is a great addition if you have to deal with traffic. Being able to see what the car behind me is doing gives me a ton of confidence.
I also removed the shifters. It began with the rear to make more room on the right side, allowing the three speed switch/cruise button to be on the bottom instead of turned up to get out of the shifter’s way. The three speed front on the 11t rear worked well, for about one ride. It gave me trouble, I tried to reason with it. It didn't listen. I removed it. Works fine as a single speed.
The best upgrade to the handle bars is the CAv3. I’m running it in legacy mode for now, and learning about its functionality bit by bit, but I’ve just not grown into the power levels to really take advantage of all the features—yet.
I mounted the CA using the stem mount bracket from ebikes.ca. I’m unsure about the way it is positioned because it makes me have to look down from the road to read it. I’ll try turning the mount around, or using it on the handle bars using the handle bar mount, and see how I like it. For now, you’ll notice I’m using the CA handle bar mount as a ghetto flashlight holder. The handle bar clamp of a reflector gets the CA mount’s bolt, and what would normally clamp the handle bar for the CA clamps the Dorcy flashlight.
Some stats from today’s ride:
System: MAC geared rear hub in 26” wheel
Schwalbe Big Apple 2.35” at 33 lbs. pressure
36v 11.5Ah A123 (12s5p 26650 cells)
Cell_man 40a 12fet (3077) controller
Genesis V2100
Marzocchi DJ3 100mm travel with Avid BB7 180mm rotor
Rear rim brakes
Bike weight approx. 50 lbs.
190 lb. rider
Ride: 14.4 miles by the CA / 14.54 by GPS … need to fine tune tire size in CA
41.9v resting at start, day after a charge.
My path was mixed neighborhood, bike path, and city street both with and without bike lanes. My normal pace on level without power is 16-17 mph, so in the neighborhoods or where it’s just safer to be on the sidewalk, I set the three speed to low to get 15 unassisted, and add my own pedaling using 250-350w on average. On the bike paths, I do a lot of pulse and go with the second (100%) setting and glide/pedal past other pedestrians. It gives 20mph unassisted at about 500w unassisted level. Moderate pedaling at this speed lowers the watts by 100-150 with a 1-2mph gain. On the streets downtown, I can keep pace with traffic at 25mph max easily with the short blocks and frequent stop signs. On the 4 mile long street ride home, most with bike lane, except, of course, the busiest section, I run WOT for 25mph unassisted at about 750w. I see peaks accelerating or on the hills of 1400-1500w.
38.9v resting charge after 14.5 miles using 7.09 Ah
39.28 max amps
35.9v min
268.58 Watt-hrs
18.6 Wh/mi
1215’ total climb over the round trip, so also 1215’ of total declines.
32.1 mph max speed
18.1 mph average
It was so very interesting that on a day I set out to gather numbers and photos for this post, that about two-thirds of the way through my ride, near one end of the trail, I met two men on Crystallite powered cat-trikes. A pleasant surprise. Was it you?
Original Build thread: http://endless-sphere.com/forums/viewtopic.php?f=6&t=41127
I cleaned up the look of the bike hiding the controller and wires under a ¾ section of pvc flashing strapped to the rack, that also acts nicely as a mud guard.
The battery is still held in place by belts and a quarter section of the pvc on the bottom to distribute the weight, and some foam all around. I still plan on coming up with something different for a cover/bag/box, but I got in on the Farfle swing arms, so I may have to up to 48v or more after installing it. That will require a different battery solution. (Before you all suggest lipo, I live in an apartment and just so no to lipo until my living arrangements change.)
I cleaned up the handle bars by removing and replacing the controller on/off switch with a small toggle, which can be seen in the front of the triangle.
A mirror is a great addition if you have to deal with traffic. Being able to see what the car behind me is doing gives me a ton of confidence.
I also removed the shifters. It began with the rear to make more room on the right side, allowing the three speed switch/cruise button to be on the bottom instead of turned up to get out of the shifter’s way. The three speed front on the 11t rear worked well, for about one ride. It gave me trouble, I tried to reason with it. It didn't listen. I removed it. Works fine as a single speed.
The best upgrade to the handle bars is the CAv3. I’m running it in legacy mode for now, and learning about its functionality bit by bit, but I’ve just not grown into the power levels to really take advantage of all the features—yet.
I mounted the CA using the stem mount bracket from ebikes.ca. I’m unsure about the way it is positioned because it makes me have to look down from the road to read it. I’ll try turning the mount around, or using it on the handle bars using the handle bar mount, and see how I like it. For now, you’ll notice I’m using the CA handle bar mount as a ghetto flashlight holder. The handle bar clamp of a reflector gets the CA mount’s bolt, and what would normally clamp the handle bar for the CA clamps the Dorcy flashlight.
Some stats from today’s ride:
System: MAC geared rear hub in 26” wheel
Schwalbe Big Apple 2.35” at 33 lbs. pressure
36v 11.5Ah A123 (12s5p 26650 cells)
Cell_man 40a 12fet (3077) controller
Genesis V2100
Marzocchi DJ3 100mm travel with Avid BB7 180mm rotor
Rear rim brakes
Bike weight approx. 50 lbs.
190 lb. rider
Ride: 14.4 miles by the CA / 14.54 by GPS … need to fine tune tire size in CA
41.9v resting at start, day after a charge.
My path was mixed neighborhood, bike path, and city street both with and without bike lanes. My normal pace on level without power is 16-17 mph, so in the neighborhoods or where it’s just safer to be on the sidewalk, I set the three speed to low to get 15 unassisted, and add my own pedaling using 250-350w on average. On the bike paths, I do a lot of pulse and go with the second (100%) setting and glide/pedal past other pedestrians. It gives 20mph unassisted at about 500w unassisted level. Moderate pedaling at this speed lowers the watts by 100-150 with a 1-2mph gain. On the streets downtown, I can keep pace with traffic at 25mph max easily with the short blocks and frequent stop signs. On the 4 mile long street ride home, most with bike lane, except, of course, the busiest section, I run WOT for 25mph unassisted at about 750w. I see peaks accelerating or on the hills of 1400-1500w.
38.9v resting charge after 14.5 miles using 7.09 Ah
39.28 max amps
35.9v min
268.58 Watt-hrs
18.6 Wh/mi
1215’ total climb over the round trip, so also 1215’ of total declines.
32.1 mph max speed
18.1 mph average
It was so very interesting that on a day I set out to gather numbers and photos for this post, that about two-thirds of the way through my ride, near one end of the trail, I met two men on Crystallite powered cat-trikes. A pleasant surprise. Was it you?
