1) Looks like straight-up mountain bike knobbies - what pressure are you running?
2) Can you feel any resistance from the tires as they are, and are you thinking going with something more street later?
3) How's the batteries holding up? Are you able to do your mission with 18s1P?
4) Are you only balance-charging right now?
5) Have you put the bike to "full production" use yet - do you consider yourself done with testing?
if you look at this pic you'll see the tires are actually a street pattern with some side knobs. Never seen this tire before this. I feel no resistance at all from these, much more from the motor itself. I'm running at 65 psi with thorn resistant inner tubes. I need to get Goo put in the tubes and install liners for flat protection.
Batteries are holding up great, just have a small issue when balance charging pack #2 (takes a little longer, has a wierd spike at the end in cell 6 on the graph. I think I may have caught a dud) I can easily do my commute to work, recharge there slowly (I built 2 computer PSU's so I can charge at home and work only having to haul around my tiny little iCharger 106b+) I suspect that if I took it really easy, I could easily make it both ways (11 miles)
I did balance charge every cell for ten full cycles at 3 A or less (when Im at work I do them at 1.5A each and it finishes right before lunch break) last night I did all three on a bulk charge @ 5A (11th cycle). I really need a pigtail or a good balance harness.
I consider myself done with testing and have put the bike into full Go mode. I can easily hold around 24 mph @ 80% throttle using around 250 W on my commute. Very efficient machine. I definately lose some of that efficency when I screw around on the dirt trails nearby. Its still fairly cold here, but yesterday afternoon I went out and cranked on the motor and controller for a bit and nothing really got hot at all, just slightly warm to the touch (it was around 72 here yesterday). Still did 4 miles @ 1.6 Ah.
looking at the cost to build this bike today
bike itself - $16
forks - $86
Wife Kit from methods - $406
charger and connectors from EPbuddy - $96
batteries from HK - $144
soldering iron and other electrical supplies - $25
total cost ~ $733
Im sure theres a discrepancy of around 20 bucks somewhere but who cares!
"It has a lithium cracking station. We may be able to adapt some of its power packs to our engines." Spock, season one, episode four. 1966....How right he was.
1996 Marin Palisades Trail, 9C 2810R DD 40A controller Magura full twist throttle 18s2p 29 mph @ 23 wh/mi
1970 Cook Bros single speed beach cruiser prototype serial # 1 (for sale $100,000 frame only)