40 mph club

Finally broke the big 40! to make it even better i had just blew by a lycra who was moving right along.

2011-07-26190819.jpg
 
79 kph on a "1606" 9C and 20s. That's about 49.375 mph. Woo! Almost the 50mph club :D

Will try 24s sometime soon. For my daily commuting needs, 20s is perfect though. I can keep up with people going 20kph over the speed limit, so I generally annoy no one.
 
dozentrio said:
79 kph on a "1606" 9C and 20s. That's about 49.375 mph. Woo! Almost the 50mph club :D

Will try 24s sometime soon. For my daily commuting needs, 20s is perfect though. I can keep up with people going 20kph over the speed limit, so I generally annoy no one.
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very nice
 
So my first bike is a tidal force that has a ebikes.ca 2806 and a stevo 12 fet when I run my 16s 20ah cellman pack it will only go 61kph but when i put 16s lipo on it it runs 65kph so I guess it qualify's as 40 mph but I want to go faster.

The second bike has same controller and a sensored hs35 or maybe hs30 if i got wrong one, the question for today is how much lipo can I put on it and how fast can I go? 18s 20s its time to order some lipo

Stephen
 
yopappamon said:
E-bike4life said:
:twisted: I was clocked on radar 42mph, does it still count if I have to pedal so fast you can't see my my feet lol :wink:
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:p
I sure hope so, i was pedaling downhill with a tail wind! :twisted:
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Excellent :twisted: By the way my setup is a dirty girl 500w cyclone- 6s6p Zippy 15c :lol: She does a 28 mile round trip everyday WOT hope it lasts awhile :lol:
 
parabellum said:
BMX with GM 18“ cast wheel 15s lipo on slightly modified conhismotor 15 fet controller. 65kmh fresh of charger on 120% setting. Does it counts?
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I'd say more so than someone doing it going downhill with a tail wind. :p
 
New entry into the 40mph club. We worked through the night on saturday and finally got it going at around 6am, after many setbacks. We cruised to breakfast and only had a 33mph top speed. After I realized that it was the cycle analyst limiting the current (we hadn't set it up yet) We unplugged it and got 40mph, down a relatively short street...

Scott'sbike.JPG

Thing is a beast.
 
Pure said:
parabellum said:
BMX with GM 18“ cast wheel 15s lipo on slightly modified conhismotor 15 fet controller. 65kmh fresh of charger on 120% setting. Does it counts?
Click to expand...

I'd say more so than someone doing it going downhill with a tail wind. :p
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It was running over 75KMH (i was unable to accelerate more, no balls) with 18 fet Liens on 24s, it was just to dangerous on short BMX chassis. :D
 
40 MPH and better clubs have their rewards. Had some dude pass me on the way home a few weeks back. I caught up and paced him at 28MPH I usually travel near 20. After the cars cleared I went to full throttle the posted speed limit was 40 I was good and did not go over it? ;^) He caught me at the next red light and we pulled over and talked. He was running a GM motor he got off of Ebay with a duct tape lifepo4 batt and a very inexpensive bike. So speed is cheap if you want it. Safety should be at the forefront of any build though. Caliper brakes and an inexpensive bike with 16 lbs of batts on a seat post rack might not be the in one's best interest when it comes to traveling at near 30MPH.
 
Almost made it to 50mph. She's got more in her. Ill get to 50 tomorrow prob. :shock:

9va3c3.jpg
 
I made it into the 40mph club! :D

42.6 mph using 18s LiPo 66.6V, Lyen 12FET sensorless controller and a HS3540 in a KMX X-Class.

I am sure there is more available as this was along a narrow cycle track with a river either side and I got scared! :shock: :shock: :shock:
 
:twisted: Easy on the duration of those rides. Fun! You'll never be that practical commuting with a ping dude again now.
Personally, I've found above 40 just too sketchy on the street. Breaking spokes on manhole covers you never saw till too late, etc. Can't corner as fast as you want with a curb ready to trip on if you screw it up. But get on a racetrack, and yeah baby.
 
Yeah yeah yeah, I love having this much power. Rolling down fry street where everyone was waiting in line to get in the bars last night and doing wheelies got me a lot of "wtf" looks.

Fun stuff! But yeah, unless I'm on the country roads I lay off. Too little range going that fast and too many cars.

Really, with that much power range is a huge problem (and overheating) I really don't like worrying about it. With the ping I never had to worry about range. I'm thinking for weekend riding or going out to bars I should re-purpose the ping on a super efficient geared road bike would be safer and less trouble. That or building up another bike with an x5 and enough room for a 3kwh battery pack. :eek:
 
You guys should be using a bike speedometer, they are more accurate than GPS. Just make sure you measure the tire circumfrence correctly by going one revolution with weight on the tire.


Not in the 40mph club yet, unless I up the amps on my lipo. I did hit 35 last night, with a little pedaling, but it's really only good if I need to go fast in traffic. I prefer 23-30mph.
 
veloman said:
You guys should be using a bike speedometer, they are more accurate than GPS. Just make sure you measure the tire circumfrence correctly by going one revolution with weight on the tire.
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You are joking right? GPS speed with multiple satellite connections (the more the better) is one of the most accurate ways to read your speed. Tires deform from load while riding changing their circumference, cornering can cause a different diameter because you may be on a shorter radius etc etc etc.

If you want to see really really inaccurate speedometers go ride a sport bike. All the guys that claim to go 170mph+ are sadly disappointed when clocked properly by radar or GPS and often find out they only managed high 150's, timing equipment or GPS. I've seen error rates as high as 15% on motorcycle and car speedos at high speed. I have a video of a friend and I doing 190mph GPS on Garmin in his turbo Porsche 996, speedo read like 203, what a joke, not even close, over 6% error.

Much better to calibrate your bike speedo to GPS if you want it to be accurate.
 
zombiess said:
Much better to calibrate your bike speedo to GPS if you want it to be accurate.
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I humbly disagree. Maybe for airliners and ships at sea that would make good sense, but for road – it needs to be a calibrated wheel on the ground. Calibration can be achieved by numerous methods; however the one I prefer most are the mile-markers on U.S. Highways. When last On the Road, I used that method nearly every day to ensure my mileage was accurately recorded.

Mile markers are in two forms: A) White rectangular County ½ mile or mile posts punched into the ground that are used for references such as accidents or road construction, and B) Odometer Tests varying 4 to 7 miles in length; there’s one on nearly every highway and interstate every 100 miles or so.

The only deviations of distance recorded were on dirt & gravel, and slippery rainy surfaces where the wheel could spin faster than the actual distance due to reduced surface contact (natch).

How do they calibrate out at Bonneville? I bet it’s with mile markers on a set course. Someone had to measure that out with a calibrated wheel. :wink:

Accurate well past fun & excitment, though still a hair shy of danger - KF
 
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