majornelson
100 W
Now that's damn impressive!
Cresh's Commuter
- Thread starter Cresh
- Start date
etard
100 kW
Congrats man, that's damn impressive.
DAND214
10 MW
I think I read most of the post, but I didn't catch what your top speed is?
Would like to know as I have a new one watin for a rim.
Dan
Would like to know as I have a new one watin for a rim.
Dan
serisman
100 mW
Cresh, out of curiousity, what about the Mac makes it feel more like a bicycle (weight, performance, looks, etc...)?
Also, maybe I missed it, but is the 7T a custom wound motor? I thought the Mac only comes in 6T, 8T, 10T, or 12T?
This is the Mac motor that I assume you are talking about:
http://em3ev.com/store/index.php?route=product/product&path=40&product_id=52
Love your bike/videos by the way. Also, great job on hitting 10,000 miles. I can only dream of the day I will have that many miles on mine (only a 15 mile round trip commute for me).
Also, maybe I missed it, but is the 7T a custom wound motor? I thought the Mac only comes in 6T, 8T, 10T, or 12T?
This is the Mac motor that I assume you are talking about:
http://em3ev.com/store/index.php?route=product/product&path=40&product_id=52
Love your bike/videos by the way. Also, great job on hitting 10,000 miles. I can only dream of the day I will have that many miles on mine (only a 15 mile round trip commute for me).
serisman
100 mW
Again, maybe I missed it, but what kind of spoke in what kind of rim just broke?
I just re-built my wheel with a Alex DM24 rim and Sapim 13/14 single butted spokes (replacing the original 12g Chinese crap).
I just re-built my wheel with a Alex DM24 rim and Sapim 13/14 single butted spokes (replacing the original 12g Chinese crap).
majornelson
100 W
I have the 8T from Paul and I have a similar top end speed. If I keep it to 20 mph (using a 3 speed switch and a CA v3), I get exceptional range out of my triangle battery - over 60+ miles on relatively flat terrain with some very modest pedaling.
I agree with Cresh, my bike feels like a bike. Freewheels well and the weight is low given the triangle battery so you don't notice it...
I agree with Cresh, my bike feels like a bike. Freewheels well and the weight is low given the triangle battery so you don't notice it...
serisman
100 mW
Thanks for the reply. I just have a conhismotor 48V 1000W direct drive motor, and was curious why a smaller geared motor would make it feel more like a bike again. I suppose it is something I will just have to try for myself. One can always use another motor, right? :wink:
I did just receive my 50V 18.5Ah triangle pack from cell_man today, and would agree that it definitely makes a huge difference and makes the bike feel like a bike again. I was coming from ~60 lbs of SLA on the back rack, so of course ~14 lbs of lithium ion in the triangle would make a night and day difference. I picked up more top end speed, drastically increased the range, drastically reduced the weight, and drastically increased the life expectancy. And now I can hook up the trail-a-bike for my daughter again.
I also picked up a 7-speed 11t freewheel from Paul and properly installed it when I rebuilt my wheel. With the cheap chinese freewheel I couldn't get to the 14t gear (spacing issues) so I had to use the 16t. (This is with a 42t chainring). Now I can actually pedal at 20mph speeds and have it mean something again.
I did just receive my 50V 18.5Ah triangle pack from cell_man today, and would agree that it definitely makes a huge difference and makes the bike feel like a bike again. I was coming from ~60 lbs of SLA on the back rack, so of course ~14 lbs of lithium ion in the triangle would make a night and day difference. I picked up more top end speed, drastically increased the range, drastically reduced the weight, and drastically increased the life expectancy. And now I can hook up the trail-a-bike for my daughter again.
I also picked up a 7-speed 11t freewheel from Paul and properly installed it when I rebuilt my wheel. With the cheap chinese freewheel I couldn't get to the 14t gear (spacing issues) so I had to use the 16t. (This is with a 42t chainring). Now I can actually pedal at 20mph speeds and have it mean something again.
Supertux1
100 W
I found that I cannot use the gears on either end of the 7 speed freewheel due to spacing issues.
The derailler hits the motor casing when switching to the big gear and the chain won't clear the frame when switching to the smallest gear.
I adjusted the derailler stop screws to prevent all that from happening, and it doesn't really bother me because I use only the middle gear when I pedal.
Sometimes I feel like a smug hipster when doing that so I occasionally switch gears to see if the derailler still works.
The derailler hits the motor casing when switching to the big gear and the chain won't clear the frame when switching to the smallest gear.
I adjusted the derailler stop screws to prevent all that from happening, and it doesn't really bother me because I use only the middle gear when I pedal.
Sometimes I feel like a smug hipster when doing that so I occasionally switch gears to see if the derailler still works.
Supertux1
100 W
Cresh said:
Right on man, been there done that.
What a great opportunity to learn how to lace, dish and true a wheel with better quality spokes. (I recommend wheelbuilder.com's single butted Sapim spokes, 2.3mm flange end, 13 to 14 gauge.)
serisman
100 mW
Supertux1 said:
They aren't specifically listed on the website, but I purchased my set of custom cut Sapim 13/14 single butted spokes from http://www.DansComp.com for about 1/2 the price wheelbuilder.com had them listed for. I think they were $0.49 each (including a nipple). Shipping was about $9 and the spokes arrived 2 days after ordering them. Highly recommended.
serisman
100 mW
Supertux1 said:
Yeah, I originally couldn't hit the smallest gear on the freewheel (even the stock one had this problem). I never had a problem with the biggest gear though (although I very rarely need that one)
With my motor (conhismotor 48v 1000w), I ended up having to change the spacers on either side to make more room for the freewheel's smallest gear to clear the frame. This changed the amount of dish in the wheel, but I was rebuilding the wheel anyway, so perfect timing. Now I can hit all the gears. I ended up using two small pieces of electrical conduit as my new spacers (perfect diameter). I cut them to rough length with a bandsaw with a metal cutting blade and then trued them up with a "mini" metal cutting lathe that I bought a while ago. If I didn't have these tools, one could probably accomplish the same thing with some careful use of a dremel tool.
Supertux1
100 W
Cresh said:Supertux1 said:Cresh said:
Right on man, been there done that.
(I recommend wheelbuilder.com's single butted Sapim spokes, 2.3mm flange end, 13 to 14 gauge.)
Do you think one broken spoke requires a complete rebuild? I was just going to replace the one spoke. The others look good to me.
Not necessarily, but if one spoke broke then more are probably nearing the point where they are going to break. I had four original spokes break on me like that. At least go through and tighten them all up a half or quarter turn, but note that standard spoke wrenches won't turn those Chinese 13 gauge nipples.
I replaced all mine because it's very difficult to find custom length 13 gauge spokes/nipples here in the USA, most bike shops and online stores won't carry them. (That plus better quality, and the thinner gauge doesn't necessarily mean weaker.)
upward
1 W
Cresh,
How is your battery holding-up after 600+ cycles? Any loss of performance or loss of capacity that you can notice?
Seems like most folks hit the end of battery life by age rather than number of cycles.
How is your battery holding-up after 600+ cycles? Any loss of performance or loss of capacity that you can notice?
Seems like most folks hit the end of battery life by age rather than number of cycles.
majornelson
100 W
How fast are you typically going on the streets of DC (confidentially )?
BTW, traffic sucks and your videos prove it!
)? BTW, traffic sucks and your videos prove it!
Supertux1
100 W
And people wonder why some drivers hate cyclists... I too live in a place like this, I'm more afraid of other cyclists than I am inattentive or aggressive drivers.
(Like the moms with kid carts in tow riding three wide across the entire bike path, and yelling at me to slow down...)
There are a lot of idiots here that 'shoal' me at stop lights and crossings.
They stop AHEAD of me, blocking the intersection or crosswalk knowing full well that I just passed their ass 5 seconds ago and will now have to do so again.
Congrats on your 10,000th mile! I hope to get there soon.
(Like the moms with kid carts in tow riding three wide across the entire bike path, and yelling at me to slow down...)
There are a lot of idiots here that 'shoal' me at stop lights and crossings.
They stop AHEAD of me, blocking the intersection or crosswalk knowing full well that I just passed their ass 5 seconds ago and will now have to do so again.
Congrats on your 10,000th mile! I hope to get there soon.
majornelson
100 W
Okay, I'll bite. I couldn't find it on their site... Very curious.
Please post a link to the new thread when started!
Please post a link to the new thread when started!
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