Small update to the bike's config. Gone from 18S to 20s LiPo with an end charge voltage of 83.5V. Battery config is 3 x 6S 5ah plus an extra 1 x 2S 5ah added to the series. I am using my older packs out of the Fighter which are 300 odd cycles old and quite tired. They still have reasonable capacity and hold good balance, just a bit saggy underload. However, they are fine for a low powered setup as on this bike. Watt limit has been kept the same @ 800W max so the bike feels similar in relation to acceleration but it does feel a little more crisp. Added a couple of clicks to the top speed of the bike also.
The Little SWXH seems happy so far with a few rides to work now completed.
So I thought I would give it a bit of shakedown this morning with blast up the local hill climb known as the one in twenty.
http://theclimbingcyclist.com/climbs/mt-dandenong/the-1-in-20/ This is a well used time trial climb that is very popular with the lycra set both comp and recreational. An A grade comp rider strives for sub 14 minutes but a time under 20 minutes is considered reasonable. My PB on my road bike is 18.35 so not too bad for an old bloke.
Anyway, enough background preamble. Time to see what the Super Commuter could do. After a 12km warmup ride to the base of the climb, I stopped and set a 500W PAS profile to be a little conservative with the motor. Sat there for a few minutes with about 20 riders going past me and none of the them giving me a second look.
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Took off and quickly settled into a fairly consistent speed of 32kph. The CA showing 500W and me pedaling at a consistent level probably contributing around 250W to the mix. Wasn't long before I started passing rider after rider typically 10 to 15kph faster then what they we doing. The SWXH is very quite under these loads and certainly wasn't giving anything away. However I have no doubt I was kidding no one that it was just me pushing the bike up this climb.
Hit a section half way up that flattens off a bit with my speed now getting up to 45kph. At this speed some of the corners were getting a bit dicy but I didn't want to backoff. Was kind of happy as it started to get a bit steeper again so I wasn't traveling quite so quickly.
I could now see the final straight and pushed hard to finish it off. Cross the line and hit the stop on the timer. 12 minutes 45 seconds. The little overvolted Bafang performed flawlessly and I had a ball pretending I was some kind of super athlete.
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Continued up the mountain and then back down and home. 53km and a total of 273 Whrs. Not to bad considering close to half of that capacity was used to race up the hill.
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